INA331 Description
INA331 INA2331 ® INA331 INA2331 SBOS215C * DECEMBER 2001 * REVISED APRIL 2005 Low-Power, Single-Supply, CMOS INSTRUMENTATION AMPLIF.
The INA331 and INA2331 are rail-to-rail output, low-power CMOS instrumentation amplifiers that offer wide range, singlesupply operation as well as bip.
INA331 Features
* q DESIGNED FOR LOW COST q HIGH GAIN ACCURACY: G = 5, 0.02%, 2ppm/°C q GAIN SET WITH EXT. RESISTORS FOR > 5V/V q LOW OFFSET VOLTAGE: ±250µV q HIGH CMRR: 94dB DC, 50dB at 45kHz q LOW BIAS CURRENT: 0.5pA q BANDWIDTH, SLEW RATE: 2.0MHz, 5V/µs q RAIL-TO-RAIL OUTPUT SWING: (V+)
* 0.02V q WIDE TEMP
INA331 Applications
* q INDUSTRIAL SENSOR AMPLIFIERS: Bridge, RTD, Thermocouple, Position
q PHYSIOLOGICAL AMPLIFIERS: ECG, EEG, EMG
q A/D CONVERTER SIGNAL CONDITIONING q DIFFERENTIAL LINE RECEIVERS WITH GAIN q FIELD UTILITY METERS q PCMCIA CARDS q AUDIO AMPLIFIERS q COMMUNICATION SYSTEMS q TEST EQUIPMENT q AUTOMOTIVE INS
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