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INA149 Datasheet Voltage Difference Amplifier

Manufacturer: Texas Instruments

Overview: INA149 www.ti.com SBOS579B – SEPTEMBER 2011 – REVISED JULY 2012 High Common-Mode Voltage Difference.

General Description

The INA149 is a precision unity-gain difference amplifier with a very high input common-mode voltage range.

It is a single, monolithic device that consists of a precision op amp and an integrated thinfilm resistor network.

The INA149 can accurately measure small differential voltages in the presence of common-mode signals up to ±275 V.

Key Features

  • 1.
  • 2 Common-Mode Voltage Range: ±275 V.
  • Minimum CMRR: 90 dB from.
  • 40°C to +125°C.
  • DC Specifications:.
  • Maximum Offset Voltage: 1100 μV.
  • Maximum Offset Voltage Drift: 15 μV/°C.
  • Maximum Gain Error: 0.02%.
  • Maximum Gain Error Drift: 10 ppm/°C.
  • Maximum Gain Nonlinearity: 0.001% FSR.
  • AC Performance:.
  • Bandwidth: 500 kHz.
  • Typical Slew Rate: 5 V/μs.
  • Wide Supply Range: ±2.0 V to ±18 V.

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