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LMP8645 - Precision High Voltage Current Sense Amplifier

Description

The LMP8645 and the LMP8645HV 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.
  • LMP8645 -2V to 76V.
  • LMP8645HV 2.7V to 12V.
  • Supply voltage range.
  • Gain configurable with a single resistor.
  • Max variable gain accuracy (with external resistor) 2.0% 200 μA/V.
  • Transconductance 1 mV.
  • Low offset voltage 12 μA.
  • Input bias 90 dB.
  • PSRR 95 dB.
  • CMRR.
  • 40°C to 125°C.
  • Temperature range.
  • 6-Pin TSOT Package.

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Datasheet Details

Part number LMP8645
Manufacturer National
File Size 428.08 KB
Description Precision High Voltage Current Sense Amplifier
Datasheet download datasheet LMP8645 Datasheet
Additional preview pages of the LMP8645 datasheet.

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LMP8645/LMP8645HV Precision High Voltage Current Sense Amplifier January 7, 2010 LMP8645/LMP8645HV Precision High Voltage Current Sense Amplifier General Description The LMP8645 and the LMP8645HV 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 LMP8645 accepts input signals with common mode voltage range from -2V to 42V, while the LMP8645HV accepts input signal with common mode voltage range from -2V to 76V. The LMP8645 and LMP8645HV have adjustable gain for applications where supply current and high common mode voltage are the determining factors.
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