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INA128 Description

The INA128 and INA129 (INA12x) are low-power, general-purpose instrumentation amplifiers that offer excellent accuracy. The versatile three op amp design and small size make these amplifiers an excellent choice for a wide range of applications. Currentfeedback input circuitry provides wide bandwidth even at high gain (200kHz at G = 100).

INA128 Key Features

  • Low offset voltage: 50μV, maximum
  • Low drift: 0.5μV/°C, maximum
  • Low input bias current
  • 5nA, maximum (CSO: SHE)
  • 0.7nA, maximum (CSO: FRE)
  • Low noise: 8nV/√Hz, 0.2μVpp
  • High CMR: 120dB, minimum
  • Bandwidth: 1.3MHz (G = 1)
  • Inputs protected to ±40V
  • Wide supply range: ±2.25V to ±18V