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INA240 Datasheet Ultra-Precise Current Sense Amplifier

Manufacturer: Texas Instruments

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General Description

The INA240 device is a voltage-output, current-sense amplifier with enhanced PWM rejection that can sense drops across shunt resistors over a wide common-mode voltage range from –4 V to 80 V, independent of the supply voltage.

The negative common-mode voltage allows the device to operate below ground, accommodating the flyback period of typical solenoid applications.

Enhanced PWM rejection provides high levels of suppression for large common-mode transients (ΔV/Δt) in systems that use pulse width modulation (PWM) signals (such as motor drives and solenoid control systems).

Overview

INA240 SBOS662C – JULY 2016 – REVISED DECEMBER 2021 INA240 –4-V to 80-V, Bidirectional, Ultra-Precise Current Sense Amplifier With Enhanced PWM Rejection.

Key Features

  • Enhanced PWM Rejection.
  • Excellent CMRR:.
  • 132-dB DC CMRR.
  • 93-dB AC CMRR at 50 kHz.
  • Wide Common-Mode Range:.
  • 4 V to 80 V.
  • Accuracy:.
  • Gain:.
  • Gain Error: 0.20% (Maximum).
  • Gain Drift: 2.5 ppm/°C (Maximum).
  • Offset:.
  • Offset Voltage: ±25 μV (Maximum).
  • Offset Drift: 250 nV/°C (Maximum).
  • Available Gains:.
  • INA240A1: 20 V/V.
  • INA240A2: 50 V/V.
  • INA240A3: 100.

More Datasheets from Texas Instruments

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INA240-Q1 Ultra-Precise Current Sense Amplifier
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