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LMP8640HV - Precision High Voltage Current Sense Amplifier

This page provides the datasheet information for the LMP8640HV, a member of the LMP8640 Precision High Voltage Current Sense Amplifier family.

Description

The LMP8640 and the LMP8640HV are precision current sense amplifiers that detect small differential voltages across a sense resistor in the presence of high input common mode voltages with a supply voltage range from 2.7V to 12V.

Features

  • Typical values, TA = 25°C.
  • High common-mode voltage range -2V to 42V.
  • LMP8640 -2V to 76V.
  • LMP8640HV 2.7V to 12V.
  • Supply voltage range 20V/V; 50V/V; 100V/V.
  • Gain options 0.25%.
  • Max gain error 900µV.
  • Low offset voltage 13 μA.
  • Input bias current 85 dB.
  • PSRR 103 dB.
  • CMRR (2.1V to 42V) -40°C to 125°C.
  • Temperature range.
  • 6-Pin TSOT Package.

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Datasheet preview – LMP8640HV

Datasheet Details

Part number LMP8640HV
Manufacturer National Semiconductor
File Size 1.10 MB
Description Precision High Voltage Current Sense Amplifier
Datasheet download datasheet LMP8640HV Datasheet
Additional preview pages of the LMP8640HV datasheet.

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Full PDF Text Transcription

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LMP8640/LMP8640HV Precision High Voltage Current Sense Amplifier September 7, 2010 LMP8640/LMP8640HV Precision High Voltage Current Sense Amplifier General Description The LMP8640 and the LMP8640HV are precision current sense amplifiers that detect small differential voltages across a sense resistor in the presence of high input common mode voltages with a supply voltage range from 2.7V to 12V. The LMP8640 accepts input signals with common mode voltage range from -2V to 42V, while the LMP8640HV accepts input signal with common mode voltage range from -2V to 76V. The LMP8640 and LMP8640HV have fixed gain for applications that demand accuracy over temperature. The LMP8640 and LMP8640HV come out with three different fixed gains 20V/V, 50V/V, 100V/V ensuring a gain accuracy as low as 0.25%.
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