datasheetbank_Logo    Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site
Part Number :
Home  >>>  AD644JH Datasheet



Datasheet PDF

Match, Like AD644JH
Start with N/A
End N/A
Included N/A

View Details

Manufacturer Part no Description View
Analog Devices
AD644JH Dual High Speed, Implanted BiFET Op Amp

The AD644 is a pair of matched high speed monolithic FET input operational amplifiers fabricated with the most advanced bipolar, JFET and laser-trimming technologies. The AD644 offers matched bias currents that are significantly lower than currently available monolithic dual BiFET operational amplifiers: 35 pA max, matched to 25 pA for the AD644K and L, 75 pA max matched to 35 pA for the AD644J and S. In addition, the offset voltage is laser trimmed to less than 0.5 mV, and matched to 0.25 mV for the AD644L, 1.0 mV and matched to 0.5 mV for the AD644K, utilizing Analog Devices’ laser-wafer trimming (LWT) process.
The tight matching and temperature tracking between the operational amplifiers is achieved by ion-implanted JFETs and laser-wafer trimming. Ion-implantation permits the fabrication of precision, matched JFETs on a monolithic bipolar chip. This process optimizes the ability to produce matched amplifiers which have lower initial bias currents than other popular BiFET op amps. Laser-wafer trimming each amplifier’s input offset voltage assures tight initial match and superior IC processing guarantees offset voltage tracking over the temperature range.
The AD644 is recommended for applications in which both excellent ac and dc performance is required. The matched amplifiers provide a low cost solution to true wideband instrumentation amplifiers, low dc drift active filters and output amplifiers for four quadrant multiplying D/A converters such as the AD7541, 12-bit CMOS DAC.

   Matched Offset Voltage
   Matched Offset Voltage Over Temperature
   Matched Bias Currents
   Crosstalk –124 dB at 1 kHz
   Low Bias Current: 35 pA max Warmed Up
   Low Offset Voltage: 500 mV max
   Low Input Voltage Noise: 2 mV p-p
   High Slew Rate: 13 V/ms
   Low Quiescent Current: 4.5 mA max
   Fast Settling to 60.01%: 3 ms
   Low Total Harmonic Distortion: 0.0015% at 1 kHz
   Standard Dual Amplifier Pinout
   Available in Hermetic Metal Can Package
      and Chip Form
   MIL-STD-883B Processing Available
   Single Version Available: AD544

other parts : AD644  AD644J  AD644K  AD644KH  AD644L  AD644LH  AD644S  AD644SH  AD644JCHIPS  AD644KCHIPS  


New and Popular Datasheet

LM317  PN2222A  1N4007  LM324N  FR601_  FR601  EP1C6Q240C8N  BTS113A  813-SL95.0M-15_07  BUJ303AD  BUJ303AX  BUJ303A  AT24C16D  AT24C164_  MIC4576_98  LF351_08  FR154  IRL3103D2SPBF  IRL3103D1SPBF  IRL3103D1PBF  IRL3103D1S  IKW50N60H3  MJ14000  24C164  UF604G  TSM1051L  TSM1051  TSM1011  TLV320AIC3256  STK672-110-SL-E  STK672-110-E  STK672-110  PFR852S  PFR852  AT24C16N-10SC-2.7  AT24C164-W2.7-11  AT24C16  AME8800AEETY  813-SL95.0M-15  2SK2995  MAX1115  5SLX12K1711  LF251-LF351  IRL3103LPBF  2510-6002UB  3DG122  IRL3103S  IRL3103D1  IRL3103D2  AME8800OEET  M35080  FR601-T3  MIC4576  AD7665  TDA2030A  Part List  Manufacturers List 

Key Word
System  Voltage  Analog  Audio  Axial  Battery  Bipolar  Bridge  Camera  Chip  Clock  Color  Connector  Control  Controller  Converter  Counter  Crystal  Decoder  Digital 

@ 2014 - 2018  [ Home ] [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]