Ultra High End Devices

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Ultra Low Offset Voltage & Auto-Zero Op Amps
MAX4239, MAX4239 - 2.7V to 5.5V, 0.6 mA, 1 MHz/6.5 MHz, 2uV offset max, 10nV/C deg drift, 1pA bias, 150dB Avol, 4.5nV/rtHz, SOT23, $0.85/1k  http://www.maxim-ic.com/quick_view2.cfm?qv_pk=3407
AD8628  - 2.7V to 5V, 2.2MHz, 0.5uVpp noise from 0 Hz to 10 Hz, 8uV offset max, 20nV/C deg drift, SOT23, SOIC8   http://products.analog.com/products/info.asp?product=AD8628
LTC2054 - 2.7V to 6V, 175uA, 500kHz, CMRR of 130 dB, 0.5uV typical offset, 3uV max. offset, 25nV/C deg offset drift, SOT-23, $1.00/1k, rail-rail output  http://www.linear.com/prod/datasheet.html?datasheet=1082
LTC2050  - 2.7V to 12V, 175uA supply, input bias 300pA max, bandwidth 500khz, PSRR = 120 dB, CMRR = 115 dB, gain = 120 dB, input noise 0.01Hz to 10Hz = 1.6uVp-p typical, 3uV offset max, 30nV/C deg drift, SOT-23, $1.15/1k,    http://www.linear.com/prod/datasheet.html?datasheet=614
OPA334, OPA335 - 2.7 to 5.5V, 0.35mA, 2MHz, 5uV offset max, 50nV/C deg drift, SOT23-5, SOT23-6, MSOP-8, SO-8, -40 to +125 C deg, $0.95/1k  http://focus.ti.com/docs/search/vparamsearch.jhtml?searchId=666&templateId=3

Ultra Low Input Bias Current
LMP7721 - 3fA typical, guaranteed input bias current of 20fA at 25 C deg, 900fA at 85 C deg, 5pA at 125 C deg. 6.5nV/rtHz, dc off-set +/-50uV maximum at 25 C deg.  Supply 1.8 to 5.5V, 1.3mA. Bandwidth 17MHz.    http://www.national.com/pf/LM/LMP7721.html
LLMC662   - 2fA typical input bias current, Dual opamp, 5 - 15V supply voltage, 100uA supply current per channel,  1.4MHz, 3mV offset voltage, 1.1V/us, specified for 2k and 600 Ohm loads, RRIO, $0.78/1k,  http://www.national.com/pf/LM/LMC662.html
LMC6041 - 2fA typical input bias current, Single opamp, 4.5 - 15V supply voltage, 14uA supply current per channel,  75kHz, 3mV offset voltage, 0.02V/us, RRIO, $0.79/1k, http://www.national.com/pf/LM/LMC6041.html
LMC6042 - 2fA typical input bias current, Dual opamp, 4.5 - 15V supply voltage, 10uA supply current per channel,  100kHz, 3mV offset voltage, 0.02V/us, RRIO, $0.87/1k,  http://www.national.com/pf/LM/LMC6042.html
LMC6044 - 2fA typical input bias current, quad opamp, 5 - 15.5V supply voltage, 10uA supply current per channel,  100kHz, 3mV offset voltage, 0.02V/us, RRO, $1.07/1k, http://www.national.com/pf/LM/LMC6044.html
LMC6442 - 5fA typical input bias current, Dual opamp, 2.2 - 10V supply voltage, 1uA supply current per channel,  9.5kHz, 3mV offset voltage, 0.0022V/us, RRIO, $1.02/1k, http://www.national.com/pf/LM/LMC6442.html 

Ultra Unique Circuit Architecture IC
LME49811  -  0.00035%, it drives Darlington or bipolar power transtistors in an amplifier's output stage, 19mA current drain, 9mA output current, 16V/us slew rate, 100uVrms output noise per 30kHz bandwidth, operating range +/-20V to +/-200V, 115dB PSRR. It allows 500W output power at 8 Ohm for external power transistors stage.   http://www.national.com/pf/LM/LME49811.html
LME49830  -  0.0006%, it drives MOSFETs with standard and low treshold voltages.  20mA current drain,  55mA output current, 39V/us slew rate, 44uVrms output noise per 30kHz bandwidth, operating range +/-20V to +/-200V, 105dB PSRR. It allows 300W output power at 8 Ohm for external power transistors stage. http://www.national.com/pf/LM/LME49830.html
LMV1088 - dual input microphone array amplifier, using analog far-field noise suppression technology. Connected to 2 microphone devices, it reduces background noise. It improves communication clarity in applications like mobile phones, two-way radios and  powered headsets. The chip amplifies near-field voice signals within 4cm of the microphones while rejecting far-field acoustic noise greater than 20cm from the microphones. Up to 20dB of far-field rejection is possible in a properly configured and calibrated system. It consumes 1/10th power of comparable DSP solutions. 1mA current drain, 2.7V to 5.5V supply, 85dB PSRR at 1kHz, 60dB S/N ratio, 0.1% typical and 1% max THD+N. Microphones should be spaced by 1.5cm to 2.5cm. LMV1088 calibration in production matches both microphones for gain, frequency response and acoustical path variances.  Calibration or matching data is stored in internal EPROM. Operating modes:  Default noise reduction, Mic 1 pass through, Mic 2 pass through, Mic 1 & 2 sum. Differential inputs for both microphones. Package is 3.5 x 3.5mm, 36 bump micro SMDxt, $9.95 at 1k.  http://www.national.com/pf/LM/LMV1088.html
MAX4410 - DirectDrive stereo headphone amp eliminates output dc coupling capacitors thanks to a built in, charge pump based negative supply, working at 272kHz to 368kHz. 80mW per channel into 16 Ohm, 7mA, 1.8V to 3.6V supply, 0.005% THD+N, 90dB PSRR, 95 dB S/N ratio, crosstalk 67 dB, 1MHz band, independent shutdown for each channel, 0.5mV input offset voltage minimizes dc load current, +/-8kV ESD protection on outputs, clickless operation, charge pump output resistance 6 Ohm, UCSP (2mm x 2mm) and 14 pin TSSOP     http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3459
LM4906 - World's first audio amplifier with no bypass capacitors. 1W at 8 Ohm, @1% THD+N and 5V supply. Slectable gain x2 or 4 V/V. Fast turn on time: 5 ms. Supply voltage: 2.6V to 5.5 V. LLp-10 and MSOP-8 packages. Cost $0.60 at 1k.   http://www.national.com/see/audio
iCoupler Digital Isolator - isolated transformer coils, single and multichannel isolators in one package for applications like single, multichannel isolators replacing opto isolators, ADuM1100, ADuM120x, ADuM130x, ADu140x, ADu240x family with 2.5kV to 5kV isolation, starting at $0.55 per channel at 1k. Isolated Power ADu524x family, 50mW isolated power, dual channel 2.5kV data isolation, starting at $2.95 at 1k. Converters with integrated isolation, family AD740x with 3.75kV isolation, allows extreme accurate current monitoring, starting at $4.00 at 1k. Isolated gate drivers ADuM1230, 100mA high side and low side drive, 2.5kV isolation, starting at $1.85 at 1k. Isolated communication busses, ADu125x family for true birectional isolation, 2.5kV isolation, starting at $3.05 at 1k, plus ADM2485 with 16Mbps RS-485 transceiver, 2.5kV isolation rating, starting at $5.50 at 1k.
LMV1088 - dual input microphone array amplifier uses analog far-field suppression technology to reduce background noise and improve voice  clarity. Advantage over DSP based solutions is small current drain of 1mA, no signal delay and more natural voice. Supply voltage is 2.7V to 5.5V, PSRR is 85dB, SNR is 60dB, microphones can be spaced within 1.5cm to 2.5cm, talking distance is 2cm to 10cm. Automatic calibration circuitry compensates for microphone differences, level and frequency response. Calibration data is stored in EEPROM. 3.5 x 3.5mm, 36-bump micro SMDxt package, $9.95 at 1k. http://www.national.com/pf/LM/LMV1088.html     

Ultra Wide Input Current Range Logarithmic Amplifier
LOG102 - 1nA to 1mA input to -3V to +3V output accuracy = 0.15%, Vout = -3V to +3V per Iz = 1.25mA, +/-4.5V to +/-18V supply, SOIC-14, $18.60/1k     http://focus.ti.com/docs/prod/productfolder.jhtml?genericPartNumber=LOG102&familyId=522

Ultracapacitor - Ultra High Value Capacitance
2000F Lithium-ion Capacitor - 2.2V or 3.8V rated voltage, 1.4mOhm internal resistance, energy density 21 to 25Whr/L or 12Whr/kg, self-discharge of less than 5% after 3 months, less than 10% capacity drop from initial charge to 100,000 cycles, discharge current up to 200A no problem, cost about 10 cents per Farad. http://www.jmenergy.co.jp/en/product.html
350 F capacitor - Boostcap - rated to 2.5V, weights 60g, D-cell form factor, 61.5 mm Long, 33 mm Diameter, 10 year life, 500,000 discharge-recharge cycles, operates -40 to 65 C deg, resistant against reversed polarity, $15/1k
220 F capacitor - up to 2.5VDC, DLR series of radial-leaded capacitor, custom packs combine multiple capacitors for higher voltage ratings, http://www.ilicap.com

Ultra Low Capacitance ESD Protection
ESD2100-02 and ESD2100-04 - two and four channels protection devices for single and dual USB 2.0 ports with only 1pF capacitance.  http://www.onchip.com/products.htm

Charge Pumps & Switched-Capacitor Building Blocks
LTC1043  -  Dual Precision Instrumentation Switched-Capacitor Building Block. 3V to 18V supply, up to 5 MHz clock. The internal switches have a break-before-make action. An internal clock is provided and its frequency can be adjusted with an external capacitor. The LTC1043 can also be driven with an external CMOS clock. The LTC1043, when used with low clock frequencies, provides ultra precision DC functions without requiring precise external components. Such functions are differential voltage to single-ended conversion, voltage inversion, voltage multiplication and division by 2, 3, 4, 5, etc. The LTC1043 can also be used for precise V-F and F-V circuits without trimming, and it is also a building block for switched-capacitor filters, oscillators and modulators.    http://www.linear.com/prod/datasheet.html?datasheet=178
TPS60240 (TPS6024x)  - Charge pump with voltage regulator, Vin = 1.8V to 5.5V, Vout = 2.7V, 3.0V, 3.3V, 5.0V, Iout = 25mA, Is = 250uA, lowest noise charge pump 170uVrms, MSOP-8, $1.55/1k    http://focus.ti.com/docs/prod/productfolder.jhtml?genericPartNumber=TPS60241
TPS60300 (TPS6030x)  - Charge pump with voltage regulator, Vin = 0.9V to 1.8V, Vout = 3.0V, 3.3V, Iout = 20mA, Is = 35uA, highest output current from a single battery cell, MSOP-10, $1.25/1k   http://focus.ti.com/docs/prod/folders/print/tps60300.html
TPS60310 (TPS6031x)  - Charge pump with voltage regulator, Vin = 0.9V to 1.8V, Vout = 3.0V, 3.3V, Iout = 20mA, Is = 2uA, lowest current charge pump, MSOP-10, $1.40/1k    http://focus.ti.com/docs/prod/folders/print/tps60310.html
TPS60400 (TPS6040x)  - Charge pump with voltage regulator, Vin = 1.8V to 5.5V, Vout = -Vin (INVERTER), Iout = 60mA, Is = 65uA, SOT-23-5, $0.60/1k    http://focus.ti.com/docs/prod/productfolder.jhtml?genericPartNumber=TPS60400
TPS60500 (TPS6050x)  - Charge pump with voltage regulator, Vin = 1.8V to 6.5V, Vout = 1.5V, 1.8V, 3.3V, Iout = 250mA, Is = 50uA, MSOP-10, $1.35/1k    http://focus.ti.com/docs/prod/productfolder.jhtml?genericPartNumber=TPS60500
MAX1595 (MAX1595-33, MAX1595-50) - Charge pump with voltage regulator, step up, step down, Vin = 1.8V to 5.5V, Vout = 3.3V. 5.0V, Is = 350uA, Iout = 125mA, shutdown, 1MHz switching, $1.51/1k, 12 pin QFN handles 1.48W, 8 pin uMAX handles 0.36W   http://dbserv.maxim-ic.com/quick_view2.cfm?qv_pk=3061

Ultra Precise, Low Power Voltage References
LT1389 - Shunt reference, 1.25V, 2.5V, 4.096V, 5V, tolerance = +/-0.05%, drift = 10ppm/C deg, operating current 0.8uA, noise = 25uVpp from 0.1Hz to 10Hz, SOIC-8    http://www.linear.com/go/1389
LT1790 - LDO Voltage reference, 2.5V, initial tolerance = +/-0.05%, drift = 10ppm/C deg, 2.6V to 20V supply, sinks and sources 5 mA, -40 to +125 C deg, SOT-23   http://www.linear.com/go/1790
X60008CIS8-50 - Voltage reference, 5.000 V, initial tolerance = +/-0.01%, drift = 5ppm/C deg, long term stability 10 ppm per 1000 hrs, 0.5 uA supply,  sinks and sources 10 mA, -40 to +85 C deg.  http://www.xicor.com/X60008 
MAX6126 - +/-0.02% precision bandgap voltage reference available in five fixed output voltages of 2.048 V, 2.500 V, 4.096 V and 5.000 V. Operates from 2.7 V while providing 2.5 V output, 10 mA source & sink current capability. Noise 1.3 uVp-p, drift over temperature is 5 ppm per 1 C deg in SOIC package.  http://www.maxim-ic.com
MAX6037 - world's most accurate adjustable reference. 25ppm/C deg temperature drift, 0.2% initial accuracy, less than 1uA in shutdown mode, adjustable voltage range 1.184 to 4.096 Vdc, 275 uA maximum current drain, input voltage range 2.5V to 5.5 V, fixed output voltage 1.25 V, 2.048 V, 2.5 V, 3.0 V, 4.096 V, 5.0 V, 200mV maximum dropout voltage, 100mV at 1mA, output sources and sinks up to 5 mA, SOT23 package, -40 to +125 C deg, can drive 22nF to 1uF loads, http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4211 

Ultra High Accuracy -  True RMS to DC conversion
LTC1966   - 155 uA, 0.1 uA shutdown, 2.7 - 10V, 20 kHz 1%, 350 kHz 10%, 1 MHz -3 dB error, constant bandwidth, independent on input voltage, MSOP-8 case, 0.05% adjusted & 0.25% untrimmed error, 0.02% linearity http://www.linear.com/prod/datasheet.html?datasheet=832        LTC1966 Ad_jpg_196 kB

Ultra High Performance MOSFETs
IRFP4004PBF - RDS(on) = 1.70 mOhm,  220 nC, 195A,   40V, HEXFET http://www.irf.com/product-info/datasheets/data/irfp4004pbf.pdf
IRFP4368PBF - RDS(on) = 1.85 mOhm,  380 nC, 195A,   75V, HEXFET http://www.irf.com/product-info/datasheets/data/irfp4368pbf.pdf
IRFP4468PBF - RDS(on) = 2.60 mOhm,  360 nC, 195A, 100V, HEXFET http://www.irf.com/product-info/datasheets/data/irfp4468pbf.pdf
IRFP4568PBF - RDS(on) = 5.90 mOhm,  151 nC, 171A, 150V, HEXFET http://www.irf.com/product-info/datasheets/data/irfp4568pbf.pdf
IRFP4668PBF - RDS(on) = 9.70 mOhm,  161 nC, 130A, 200V, HEXFET http://www.irf.com/product-info/datasheets/data/irfp4668pbf.pdf
IXTL2x240N055T - RDS(on) = 4.4 mOhm,  170 nC, 30ns, 240A non-isolated, isolated 140A, 50V,  5-lead ISOPLUS i5-Paks, 2nd Generation Trench Gate Power MOSFETs, 2500V isolation rating, paralleling capabilities,  N-channel, http://ixdev.ixys.com
IXTL2x220N075T - RDS(on) = 5.5 mOhm,  165 nC, 50ns, 220A non-isolated, isolated 120A, 75V,  5-lead ISOPLUS i5-Paks, 2nd Generation Trench Gate Power MOSFETs, 2500V isolation rating, paralleling capabilities,  N-channel, http://ixdev.ixys.com
IXTL2x200N085T - RDS(on) = 6.0 mOhm,  152 nC, 55ns, 200A non-isolated, isolated 112A, 85V,  5-lead ISOPLUS i5-Paks, 2nd Generation Trench Gate Power MOSFETs, 2500V isolation rating, paralleling capabilities,  N-channel, http://ixdev.ixys.com
IXTL2x180N010T - RDS(on) = 7.5 mOhm,  151 nC, 60ns, 180A non-isolated, isolated 100A, 100V,  5-lead ISOPLUS i5-Paks, 2nd Generation Trench Gate Power MOSFETs, 2500V isolation rating, paralleling capabilities,  N-channel, http://ixdev.ixys.com
FDS6572A - RDS(on) = 6 mOhm@ VGS = 4.5 V,  RDS(on) = 8 mOhm @ VGS = 2.5 V 
Low gate charge (57 nC), threshold voltage Vth = 0.8V, 16A, 20V N-Channel PowerTrench MOSFET,  $1.10/1k SOIC http://www.fairchildsemi.com/pf/FD/FDS6572A.html
FDS6572A - RDS(on) = 6 mOhm@ VGS = 4.5 V, RDS(on) = 7 mOhhm @ VGS = 2.5 V, RDS(on) = 9 mOhm @ VGS = 1.8 V, Low gate charge (75 nC), threshold voltage Vth = 0.6V, 16A, 20V N-Channel PowerTrench MOSFET,  $1.10/1k SOIC  http://www.fairchildsemi.com/pf/FD/FDS6574A.html
Si4364DY - RDS(on) = 5.5 mOhm@ VGS = 5 V, Low gate charge (62 nC), 200kHz  to 300kHz, N-Channel MOSFET,  $??, by Vishay Siliconix    http://www.vishay.com/brands/siliconix
Si4362DY - RDS(on) = 6.25 mOhm@ VGS = 5 V, Low gate charge (42 nC), 300kHz  to 500kHz, N-Channel MOSFET,  $??, by Vishay Siliconix    http://www.vishay.com/brands/siliconix
Si4858DY - RDS(on) = 7 mOhm@ VGS = 5 V, Low gate charge (30.5 nC), 500kHz  to 1MHz, N-Channel MOSFET,  $??, by Vishay Siliconix    http://www.vishay.com/brands/siliconix
Si4860DY - RDS(on) = 11 mOhm@ VGS = 5 V, Low gate charge (13 nC), 300kHz  to 500kHz, N-Channel MOSFET,  $??, by Vishay Siliconix    http://www.vishay.com/brands/siliconix
HAT2164H - RDS(on) = 3 mOhm@ VGS = 4.5 V, Low gate charge (?? nC), 60A, 30V, 30W, N-Channel MOSFET,  $1.90/2.5k SOIC30V, 30W, by Hitachi    http://semiconductor.hitachi.com
HAT2165H - RDS(on) = 3 mOhm@ VGS = 4.5 V, Low gate charge (37 nC), 55A, 30V, 30W, N-Channel MOSFET,  $1.90/2.5k SOIC30V, 30W, by Hitachi    http://semiconductor.hitachi.com
IRFS38N20D -   54 mOhm@ VGS = 10V,  44A, 200V, 320W, TO-220, TO-262, D2PAK, N-Channel MOSFET, $1.1/10k   http://ec.irf.com/ec/adirect/ir?cmd=search&useWildCard=true&query=IRFS38N20D
IRFS52N15D -   32 mOhm@ VGS = 10V,  60A, 150V, 320W, TO-220, TO-262, D2PAK, N-Channel MOSFET, $1.1/10k   http://ec.irf.com/ec/adirect/ir?query=IRFS52N15D&cmd=search

Perfect Diodes
LTC4413 Low loss, near ideal diode device with two internal switches. 0 to 28mV forvard voltage reduces power loss, self heating, extends battery run life. 2.6V to 5.5V supply, up to 5A current, 3 x 3 mm DFN package. http://www.linear.com/pc/productDetail.do?navId=H0,C1,C1003,C1142,C1079,P7889
Similar devices:
   LTC4411 with one internal switch, 2.6V to 5.5V, 5A.    LTC4412 with 26V input controller, 2.5V to 26V, 5A.   LTC4412HV with high Vin controller, 2.5V to 36V, 5A.   LTC1473 with dual high Vin controller, 4.5V to 30V.    LTC1473L with dual low Vin controller, 2.8V to 9V, 50A.     LTC4350 with load current sharing controller, 1.5V to 12V, 50A.    LT4351 with N+! redundant systems, 1.2V to 18V, 50A    http://www.linear.com/pc/categoryProducts.do

Ultra High Output Current Op Amps
PA89 - Supply voltage up to 1200V, 0.75A, $390   http://eportal.apexmicrotech.com/mainsite/products/pages/amp_ds.asp
PA52A - Output current 50A, 200V, $387   http://eportal.apexmicrotech.com/mainsite/products/pages/amp_ds.asp
SA50 - PWM amplifier 400W output at 5A on 80V supply, $95  http://eportal.apexmicrotech.com/mainsite/products/pages/amp_ds.asp
SA06 - PWM amplifier 5000W output at 10A on 500V supply, $275   http://eportal.apexmicrotech.com/mainsite/products/pages/amp_ds.asp
AD8397 - 4.5 nV/√ ^Hz, 1.5pA/√ ^Hz, 69MHz, dual, supply 3 to 24V, 15mA per amplifier, 53V/us, 310mA peak output current into 32 Ohm on +/-12V supply, rail-to-rail output.  http://www.analog.com/en/prod/0,,759_786_AD8397,00.html
LT1970  - 13mA supply, Iout = 500mA, sink and source current independently limited with 2% accuracy by DC voltage 0 to 5V, Vs = 8V to 36V, 3.6MHz band,  TSSOP, $4.95/1k   http://www.linear.com.cn/prod/datasheet.html?datasheet=852
OPA549   - Iout = 8A, 60V supply, 10V/us slew rate, 11-lead Power ZIP, $12/1k, single supply, adjustable current limit, thermally protected, digital shutdown IN/OUT   http://focus.ti.com/docs/prod/folders/print/opa549.html
OPA548  - Iout = 3A, 20mA current drain, 8V to 60V supply, 90nV/√ ^Hz, 10V/us slew rate, TO-220, DDPAK, $5.45/1k, single supply, adjustable current limit, thermally protected, digital shutdown IN/OUT   http://focus.ti.com/docs/prod/folders/print/opa548.html http://focus.ti.com/docs/prod/productfolder.jhtml?genericPartNumber=OPA548
OPA547  - Iout = 0.5A, 60V supply, 6V/us slew rate, TO-220, DDPAK, $4.09/1k, single supply, adjustable current limit, thermally protected, digital shutdown IN/OUT  http://focus.ti.com/docs/prod/folders/print/opa547.html
OPA567  - Iout = 2.4A rail to rail within 200mV, 6mA current drain, 2.7V to 5.5V supply, 12nV/√ ^Hz at 1kHz, 70nV/√ ^Hz at 100Hz, THD+N is 0.15% at 1kHz and changes from 0.01% at 20Hz to 1% at 20kHz per 8 Ohm load,  1.2V/us, 1.2MHz, unity gain stable, QFN (RHG) package with 12 pin, dimensions about 5 x 5 x 1 mm. http://focus.ti.com/docs/prod/folders/print/opa567.html
OPA569  - Iout = 2.4A rail to rail within 200mV, 6mA current drain, 2.7V to 5.5V supply, 12nV/√ ^Hz at 1kHz, 70nV/√ ^Hz at 100Hz, THD+N is 0.15% at 1kHz and changes from 0.01% at 20Hz to 1% at 20kHz per 8 Ohm load,  1.2V/us, 1.2MHz, output current monitor, output current limit can be set with a resistor or voltage, output paralleling capability, unity gain stable, SO-20 PowerPAD package with 20 pins, dimensions about 13 x 10 x 2.65 mm.  http://focus.ti.com/docs/prod/folders/print/opa569.html

Adjustable Output Current Op Amp
LMH6321 - +/-300mA output current buffer amplifier, line driver, output current adjusted down to 10mA with 5%, 5mA accuracy. Gain 1 V/V,  2.8nV/√ ^Hz, band 110MHz, 5V to 30V supply, slew rate 1800V/us, 50 Ohm load, $3.50, .  Gain  http://www.national.com/pf/LM/LMH6321.html
Another devices:   OPA569, OPA547, OPA548, OPA549 and LT1970 listed above.

Ultra High Current Power Switch    http://focus.ti.com/docs/browse/productnavigation.jhtml?familyId=423&tfsection=products&templateId=2

Ultra High Precision - Temperature Sensor
DS1621, DS1631 - Accuracy +/- 0.5 C deg, supply 2.7V to 5.5 V, no external components, 2-Wire Serial Interface, SO-8, uSOP, $1.77/1k  http://www.maxim-ic.com/quick_view2.cfm?qv_pk=2737
DS600 - Accuracy +/-0.5 C deg, from -20 C deg to +100 C deg over 2.7V to 5.5V supply, -40 C deg to +125 C deg operating range, 6.45 mV/C deg sensitivity, thermostat output with user defined threshold with integrated precision comparator, 2.5 uA supply current with standby mode, exposed pad for quick thermal response, no external components, uSOP, 8 pin, 3.05 mm x 3.05 mm package http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4253 

Ultra High Accuracy -  Micropower 24-bit differential Delta-Sigma ADC with no latency
LTC2400  -   200 uA, 2.7V to 5.5V, works up to 5 Hz, Notch Filter 50Hz/60Hz  110dB Min, 2ppm INL,  0.16ppm RMS noise, SSOP-16, 3-wire SPI interface,  $7.70/1k   http://www.linear.com/prod/datasheet.html?datasheet=562
LTC2410  -  fully differential input version of LTC2400,  200 uA, 2.7V to 5.5V, works up to 5 Hz, Notch Filter 50Hz/60Hz  110dB Min, 2ppm INL,  0.16ppm RMS noise, SSOP-16, 3-wire SPI interface,  $7.70/1k   http://www.linear.com/prod/datasheet.html?datasheet=562

Ultra High Dynamic Range - DAC & ADC
AD1896 - 24 bit rate converter, THD+N = 117 dB for all frequencies and sample rates, 142 dB dynamic range, 192 kHz sampling frequencies for IN and OUT, 1:8 upsampling, 7.75:1 downsampling. $11.30/1k  http://products.analog.com/products/info.asp?product=AD1896
AD1955 - 24 bit audio single DAC, 192 kHz, THD+N = 110 dB, dynamic range and SNR = 123 dB, $6.78/1k http://products.analog.com/products/info.asp?product=AD1955
CS4398 - THD+N = 107 dB, dynamic range = 120 dB, supports DVD-Audio, SACD formats. http://www.cirrus.com/proaudio
CS5381 - ADC with THD+N = 110 dB, dynamic range = 120 dB, 315 mW power consumption is half of previous solutions, up to 192 kHz. http://www.cirrus/proaudio
DSD1792A - 24 bit audio stereo DAC, 192 kHz, S/NR typical 127 dB, dynamic range 132 dB (9Vrms, mono), 129dB (4.5Vrms, stereo), 127dB (2Vrms, stereo), TDH+N is 0.0004%, $10/1k,   http://focus.ti.com/docs/prod/folders/print/dsd1792a.html#features
WM8741 - stereo DAC with 128dB SNR, $6.71/10k.  http://www.wolfsonmicro.com/products/WM8741/

Ultra Stable & Small RC Oscillator
LTC1799   Accurately generates a square wave signal 1kHz to 33MHz without the use of a cristal, ceramic element or existing clock reference. It requires only 2 components: Bypass capacitor and a freequency - setting resistor (20k sets 5MHz). F = (10MHz x 10k) / (N x R), where N is 1, 10 or 100, depending on state of the DIV pin (GND, V+, open?). With 0.1% resistor, frequency accuracy is better than 0.6%. Temp. coefficient = 0.004%/deg C, supply coefficient = 0.05%/V. Supply = 2.7V to 5.5V, 1mA, 1mm thin SOT-23 1mm, $2.55 and $3.45  http://www.linear.com/prod/datasheet.html?datasheet=732

Ultra Fast Comparator
MAX9600 - 500ps Prop Delay, 30ps Prop Delay Dispersion, 4Gbps Tracking Frequency, dual comparator, ECL, 20-TSSOP, $4.50/1k    http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3400

Ultra Bright LED
LumiLeds Lighting - Model HB LED, white LEDS: 5W = 120 lumens ($10), 1W = 30 lumens. Blue = 30 lumens, green & cyan = 130 lumens.    http://www.lumileds.com

Golden Dragon SMT LED handles up tp 1W, giving 20 lumens. 6,000 mcd at 400 mA, wieving angle 120 deg. Red, amber, yellow, white. Size: 6 x 7 x 1.8 mm. Temperature -40 to +100 C deg. $3/10k  http://www.osram-os.com

Ultra Sensitive Tone Detector
CMX823 detects audio tones only 4 dB above noise floor. Decodes 32 user programmed tones. Two independent lists of 32 tones allows fast toneset switching. Power supply: 0.75 mA at 2.7 V with power save. 16 pin TSSOP, DIL packages.  http://www.cmicro.com/823

Ultra High Precision  Resistor
SS1 Series Voltage Divider Network, R2/R1 ratio values 10,9,4,3,2,1 with 0.05% ratio tolerance, TCR +/-5ppm/C deg tracking tolerance, SOT-23 package, $0.30 to $0.40 at 10k, http://www.bitechnologies.com
Flip Chip  VFC1506 chip resistor has +/-0.15ppm/C deg drift within 0 to +60 C deg and 0.5ppm/C deg drift within -55 to +125 C deg. Tolerance to +/-0.01%, self inductance below 3nH, 0805 and 1206 sizes available too.  http://www.vishay.com/doc?63083  (pdf)
HVPS thin-film resistor has stability of 500 ppm (2000 hours at 70 C deg), TCR  values of 2, 15, 10, and +/-5 ppm/C deg, working range 250/300 V, power rating 0.125/0.25 W, resistance range of 50 kOhm to 5 MOhm, 100 kOhm to 10 MOhm and dimensions of 0.240/0.320 by 0.260/0.260 by 0.260/0.110 in. with 0.100/0.200-in pin spacing, -55 C deg to 125 C deg, $6.90 @ 100 for a 5 MOhm, +/-0.1% resistor. http://www.vishay.com 
Metal Foil resistor, tolerance  +/-0.005%, typical TCR at 0.14 ppm/C deg, stabilities to 3 ppm/year, voltage coefficient: 0.1ppm/V, noise: -42dB, inductance 0.08uH, capacitance 0.5picofarad   http://www.alpha-amer.com/mfr_features
Z-Foil, Bulk Metal resistors, TCR +/-0.05ppm/C deg (0 to +60 C deg), +/-0.2ppm/C deg (-55 to +125 C deg), TCR tracking 0.1ppm/C deg, PCR (power coefficient delta R due to self heating) 5ppm at rated power, load-life stability +/-0.005% (70 C deg for 2000 hrs at rated power), tolerance absolute and match to 0.005%, shelf life stability 2ppm for 10 years, non-inductive, non-capacitive design, rise time 1ns without ringing, thermal EMF 0.05uV/C deg, moisture resistance less than +/-0.015% per MIL spec., http://www.vishay.com
MC-7 Digital Multimeter Calibrator by Precision Resistor Company, a packaged group of 7 resistors 1 Ohm, 10 Ohm, 100 Ohm, 1 kOhm, 10 kOhm, 100k Ohm, 1 MOhm. Rated tolerance of 0.01% for values above 10 Ohm and 0.02% for 1 Ohm and 210 Ohm. Price $63.90     http://www.precisionresistor.com/MC7.htm 

Ultra Low Thermal Resistance Resistor
TT Electronics models MHP100LF, MHP140LF  -  MHP Series TO-247 power resistors available in 100 Watt and 140 Watt packages, 5W free air rating. Thermal resistance is 1.3 and 0.9 C deg/W. Resistance range 0.01 Ohm to 220 Ohm, absolute tolerances are +/-1%, +/-5%. Very low inductance of less than 50 nanohenries. Voltage rating 700V. Absolute temperature coefficient +/-100 ppm/C deg. Operating temperature range -40 to 85 C deg. RoHS-compliant terminations,  http://www.irctt.com
Stackpole model RHC high power, thick chip in 2512 package, 2W runs 30 C deg cooler than standard 2512 chips, exhibits joint temperatures below 105 C deg.   http://www.seielect.com
Stackpole 30W and 50W of TR series, TO-220 power film resistors is mounted to heat sink maintaining 25 C deg.    http://www.seielect.com
Stackpole HPC 5W series surface mount resistors have footprint of 0.5 x 0.5 - inch, allowing continous 5W in free air, using same space as typical 3W wirewound resistor. Rated power increases to 10W and 12.5W with additional 200-lfm or 400-lfm air movement, without exceeding circuit board temperature of 105 C deg.   http://www.seielect.com
BI Technologies BH75 rated at 75W uses 3 heat dissipation methods. It is housed in TO-220 open screened substrate package. It features an insulated tapered venturi that's bonded to the substrate for maximum heat dissipation. The design forces hot air up the venturi and away from resistor.   http://www.bitechnologies.com/products/passive.htm
KOA Speer Electronics model WK73 wide-terminal flat chip resistor offers higher power rating and enhanced power dissipation. WK73S3A in 1225 case offesr 1.5W rating, compared to RK73B3A in 2512 case rated at 1W.   http://www.koaspeer.com
Vishay Intertechnology model D2TO20 thick film power resistor rated at 20W has resistance range of 0.010 Ohm to 550 kOhm in TO-263 package.   http://www.vishay.com

Ultra Long Life - Potentiometers
JDK Controls, Inc. - "Do it yourself" pot element rotor & wiper kits, 100,000,000 revolutions, infinite resolution, 0.187 thick    http://www.jdkcontrols.com/products.html
JDK Controls, Inc - Mini-Motor Pot Combo, 100 million cycles, a precision pot 1 to 30 kOhm, with a miniature DC gearhead 4:1 to 4096:1, 340 deg angle with 0.5% linearity  http://www.jdkcontrols.com/products.html
JDK Controls, Inc. - Hollow Shaft Potentiometer, co-molded "flush circuit" technology, rated 100,000,000 revolutions min. Plastic hollow shaft with ribbed "interference fit" design for ease of securing to an existing shaft  http://www.jdkcontrols.com 

Ultra Long Life - Attenuators
Goldpoint - Superb stepped attenuators from Swiss, 24-position rotary switches with gold contacts http://www.goldpt.com

Ultra Reliable Transformers
Datatronics - Microtransformer  model 4216 with Mu-Metal shielding, 0.3555" high, 0.115" pins, 2g, 1:1 to 1:6 ratios, MIL-PRF-27 grade 5, 10k hours life, 130 deg C, 98 % rel. humidity, $16/10k  http://www.datatronics.com/products_intro.asp

Industry's First Digitally Controlled Capacitor
X90100 - Non-Volatile Digitally Controlled Capacitor replaces variable capacitors used to tune the frequency response up to 400 MHz. The digitally controlled capacitor can be set to 1 of 32 discrete steps ranging from 7.5 pF to 14.5 pF in 0.20 pF steps. Once desired value is selected via an UP/DOWN interface, it is stored in the on-chip EEPROM with Power-On recall. Setting time is 5 usec. Linearity better than 0.05 LCB. 8 pin case, X90100M81 cost is $0.99 @ 10k.  http://xicor.com/X90100

Ultra Sensitive Light Sensor
TSL237 Light to Frequency converter combines a silicon photodiode and a current-to-frequency converter. It has a typical dark light frequency of less than 2 Hz at 50 C deg for operation to light levels as low as 0.00002 lux. The sensor has a dynamic range of 5,000,000:1 and provides a square-wave output with a frequency proportional to light intensity with up to 70nm, responding to light in range 320 nm to 1,050 nm. Operating from 2.7V to 5.5V, the sensor has an irradiance responsivity of 2.3 kHz/uW/cm2 at 524 nm, a temperature coefficient of 200 ppm/C deg, an operating temperature range -25 to 70 C deg, a 3-lead clear plastic side-lookerpackage, $1.67/1k  http://www.taosinc.com/product_detail.asp?cateid=2&proid=52
TSL2771 Extremely sensitive light sensor (ALS) and proximity detector can operate behind darkened glass. It consumes far less power than earlier  comparable solutions. It aproximates human eye characteristics. Dynamic range 120dB. Texas Advanced Optoelectronic Solutions (TAOS) offers a line of devices like Ambient Light Sensor, Proximity Detection, Light - to - Digital, Color Sensor, Light - to - Frequency, Light - to - Voltage, Light Sensor Array.   http://www.taosinc.com/ProductDetails.aspx?id=%20155

Ultra High Power Inductor
SER2000 series inductors by Coilcraft are rated at 100 A minimum saturation current, DCR tolerance 5%, flat wire, self-lead construction, 0.3 uH to 2 uH, available with Designer's Kit C174 at $60. Less rated coils SER1590 Series are rated 50 A, 0.3 uH to 1uH and SER1360 Series are rated at 40 A, 0.33 uH to 10 uH.  http://www.coilcraft.com 

Ultra Wide Bandwidth Power Detector
LTC5532 detects 300 MHz to 7 GHz signals, with power range -32 dBm to +10 dBm, with temperature compensated Schottky Detector, low output offset error, user adjustable starting voltage, user adjustable gain. 2.7 V to 6 V supply.      http://www.linear.com/prod/datasheet.html?datasheet=1037
LTC5532EDC - 12 GHz RF Detector http://www.linear.com/pc/productDetail.do?navId=H0,C1,C1011,C1074,P2374   More similar devices - see section Ultra Fast Devices Links
HMC613LC4B - 0.1 to 20 GHz Successive Detection Log Video Amplifier (SDLVA), logging range 59 dB. Typical fast rise/fall times of 4/18 ns, delay time 14 ns. The HMC613LC4B log video output slope is typically 14 mV/dB.  http://www.hittite.com/products/view.html/view/HMC613LC4B
More rms, log, power detectors from Hittite http://www.hittite.com/products/index.html/category/301

Ultra Stable Microwave Coax Cable
SLA67, SLA40, SLA26, SLA18 cables have dual shield with effectiveness above 100 dB. Cables are matched to the maximum frequency ranges of N, SMA, 2.29-mm, 1.85-mm and other popular connectors. Cables work up to 67 GHz, covering temperature range -65 to +200 C deg, with breakdown voltage 2 kV to 15 kV, low capacitance of 25 pF/ft and 24 pF/ft. Silver-plated inner and outer conductors and microporous polytetrafluorothylene (PTFE) material provide the cables' low attenuation. Low loss, phase stability and shielding effectiveness result from combining a helically served flat braid with a second shield that provides a minimum round braid coverage of 97%.  Performance suits the cables for instrument-grade applications like phase-network analyzer/vector-network analyzer (PNA/VNA) and phase-critical functions, including electronic countermeasures (ECMs) and radar. Pricing $3.89/ft to $13.26/ft.  http://www.semflex.com

Rejustors - High Precision Re-adjustable Dual Resistors
eTC Rejustor  -   software controlled, non-volatile precision dual resistor chip, requires no power. Two electrically isolated rejustors per package. Co-adjustment of two Rejustors in dual or divider configuration. Resistance ratio 1:1 to 1:9, resistance range 3.3kOhm to 90kOhm. Resolution to 0.01%, absolute TCR 0+/-100ppm/K, relative TCR 0+/-10-50ppm/K, adjustment range 30% down from as - manufactured resistance. By Microbridge, The Rejustor Company.   http://www.microbridgetech.com

Ultra Small Piezoelectric Motor
SQL - Series, SQ-100 Series, SQUIGGLE Motor -  The simple ceramic motor operates on ultrasonic frequency and has only a few parts. It replaces complex electromagnetic gearhead motors which have hundreds of parts.  Scalable to much smaller sizes than electromagnetic motors, without significant loss of power efficiency.  It can be made from non-ferrous metals.
            Nanometer resolution, variable speed from 1 µm/second to 10 mm/second, 5 Newton force, dimensions 1.5 x 1.5 x 6 mm. Motor is driven by a two-channel sinusoidal or square wave at an ultrasonic frequency of 40 kHz to 200 kHz, matching the  first bending resonant frequency of the threaded tube. This creates an orbital motion whioch drives the screw.

            Piezoelectric actuators change shape when electrically excited. A SQUIGGLE motor consists of several piezoelectric ceramic actuators attached to a threaded nut, with a mating threaded screw inside.  Applying power to the actuators creates ultrasonic vibrations, causing the nut to vibrate in an orbit - similar to a person’s hips in a “Hula Hoop.”  The rotating nut turns the threaded screw, creating a smooth in-and-out linear motion. The speed and position of the threaded screw can be precisely controlled, and the screw holds its position when the power is turned off. This piezoelectric motor has no parasitic drag, no backlash, and very high stiffness.  The piezoelectric actuator generates powerful ultrasonic vibrations. A tiny, robust assembly, high force and speed, quiet operation, vacuum and cryogenic compatibility (optional), no magnetic fields.  Thread friction drives the shaft, directly converting rotary motion to linear motion. Thus no parasitic drag - less wasted power, zero backlash with highest stiffness,  nanometer resolution, high torque at low speeds, with no gearbox, smooth velocity at microscopic speeds, off-power hold, very small diameter of less than 2mm, manual screw rotation for off-power positioning.    http://www.newscaletech.com,   http://www.squigglemotors.com