INA126 - Burr-Brown Corporation

INA126 MicroPOWER INSTRUMENTATION AMPLIFIER

The INA126 and INA2126 are precision instrumentation amplifiers for accurate, low noise differential signal acquisition. Their two-op-amp design provides excellent performance with very low quiescent current (175µA/chan.). This, combined with wide operating voltage range of ±1.35V to ±18V, makes them ideal for portable instrumentation and data acquisition sy.

Features

q LOW QUIESCENT CURRENT: 175µA/chan. q WIDE SUPPLY RANGE: ±1.35V to ±18V q LOW OFFSET VOLTAGE: 250µV max q LOW OFFSET DRIFT: 3µV/°C max q LOW NOISE: 35nV/√ Hz q LOW INPUT BIAS CURRENT: 25nA max q 8-PIN DIP, SO-8, MSOP-8 SURFACE- MOUNT DUAL: 16-Pin DIP, SO-16, SSOP-16 APPLICATIONS q INDUSTRIAL SENSOR AMPLIFIER: Bridge, RTD, Thermocouple q PHYSIOLOGICAL AMPLIFIER: ECG, EEG, EMG q MULTI-CHANNEL DATA ACQUISITION q PORTABLE, BATTERY OPERATED SYSTEMS V+ 7 INA126 + VIN 3 6 8 40kΩ 10kΩ RG 10kΩ 1
  – VIN 2 40kΩ +
  – V
  –) G VO = (VIN IN G = 5 + 80k RG 3
  – VIN 1 10kΩ 40kΩ 15 5 11 + VIN 13 40kΩ RG 14 .