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MAX40056F - Bidirectional Current Sense Amplifier

Description

The MAX40056 is a bidirectional current-sense amplifier with an input common-mode range that extends from -0.1V to +65V together with protection against negative inductive kickback voltages to -5V.

Features

  • Fast, 2μs PWM Edge recovery (1%) from 500V/μs PWM Edges.
  • 60dB AC CMRR Rejection at 50V, ±500V/μs PWM Edges.
  • 140dB DC CMRR Rejection.
  • -0.1V to +65V Input Voltage Range.
  • -5V to +70V Protective Immunity.
  • 300kHz, -3dB Bandwidth.
  • Multiple Gain Options; 10V/V, 20V/V, 50V/V.
  • Internal, 1% Reference for Bidirectional Offset.
  • 5μV (Typ) Input Offset Voltage.
  • Rail-to-Rail Output.
  • 2.02mm x 1.4mm WLP-8 and 8-pin μMAX.
  • -40°C to +125°C Temperature Ran.

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Other Datasheets by Maxim Integrated (Analog Devices)

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MAX40056T Bidirectional Current Sense Amplifier
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Click here for production status of specific part numbers. MAX40056F/ MAX40056T/ MAX40056U EVALUATION KIT AVAILABLE Bidirectional Current Sense Amplifier with PWM-Rejection General Description The MAX40056 is a bidirectional current-sense amplifier with an input common-mode range that extends from -0.1V to +65V together with protection against negative inductive kickback voltages to -5V. This CSA is well-suited for phase current monitoring of inductive loads, such as motors and solenoids, where pulse width modulation is used to control the drive voltage and current. The MAX40056 uses an improved technique to help reject common-mode input PWM edges with slew rates up to and beyond ±500V/µs. Common mode rejection ratio (CMRR) is typically 60dB (50V, ±500V/µs input) and 140dB DC, typical.
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