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LMP8278 - Precision Current Sensing Amplifier

General Description

The LMP8278 is a fixed 14x gain precision current sense amplifier.

The part amplifies and filters small differential signals in the presence of high common mode voltages.

The part operates from a single 5V supply voltage.

Key Features

  • 1.
  • 23 TCVos ±15μV/°C Max.
  • CMRR 80 dB Min.
  • Input Offset Voltage ±2 mV max.
  • CMVR.
  • 2V to 40V.
  • Operating Ambient Temperature Range.
  • 40°C to 125°C.
  • Single Supply Operation.
  • Min / Max Limits 100% Tested unless Otherwise Noted.
  • LMP8278Q Available in Automotive AEC-Q100 Grade 1 Qualified Version.

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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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LMP8278 www.ti.com SNAS575A – FEBRUARY 2012 – REVISED MARCH 2013 LMP8278Q High Common Mode, 14 x Gain, Precision Current Sensing Amplifier Check for Samples: LMP8278 FEATURES 1 •23 TCVos ±15μV/°C Max • CMRR 80 dB Min • Input Offset Voltage ±2 mV max • CMVR −2V to 40V • Operating Ambient Temperature Range −40°C to 125°C • Single Supply Operation • Min / Max Limits 100% Tested unless Otherwise Noted • LMP8278Q Available in Automotive AEC-Q100 Grade 1 Qualified Version APPLICATIONS • High Side and Low Side Driver Configuration Current Sensing • Automotive Fuel Injection Control • Transmission Control • Power Steering • Battery Management Systems DESCRIPTION The LMP8278 is a fixed 14x gain precision current sense amplifier.