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INA105 Datasheet Precision Unity Gain Differential Amplifier

Manufacturer: Texas Instruments

Overview: INA105 SBOS145A – AUGUST 1993 – REVISED MARCH 2025 INA105 Precision Unity Gain Differential Amplifier.

General Description

The INA105 is a monolithic Gain = 1 differential amplifier consisting of a precision operational amplifier (op amp) and on-chip metal film resistor network.

The resistors are laser trimmed for accurate gain and high common-mode rejection.

Excellent tracking of resistors (TCR) maintains gain accuracy and common-mode rejection over temperature.

Key Features

  • Unity-gain difference amplifier configuration.
  • High common-mode rejection (CMRR): 72dB (minimum).
  • Low gain error: 0.025% (maximum).
  • Low gain drift: 5ppm/°C (maximum).
  • Low nonlinearity: 0.001% (maximum).
  • Bandwidth: 1MHz (typical).
  • Low offset voltage: 500μV (maximum).
  • Low offset voltage drift: 20μV/°C (maximum) 2.

INA105 Distributor