2014/09/19
 
 
 
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Texas Instruments LMP8481 Precision Current Sense Amplifier

A High-Side, 76V, Precision Current Sense Amplifier. Lower power loss, less expense and without sacrificing system error.

  • Bi-Directional or Uni-Directional Sensing
  • Common Mode Voltage Range 4.0V to 76V
  • Supply Voltage Range 4.5V to 76V
  • Fixed Gains 20, 50, 60 and 100 V/V
  • Gain accuracy ±0.1%
LMP8481, Precision 76V High-Side Current Sense Amplifier

Product Description

The LMP8481 from Texas Instruments’ is a precision high-side current sense amplifier designed for bidirectional current applications and able to accept input signals with common-mode voltage range from 4V to 76V with a bandwidth of 270 kHz.

As the operating power supply range overlaps the input common mode voltage range, the LMP8481 can be powered by the same voltage that is being monitored removing the need for an intermediate supply voltage meaning a reduced component count and board space.

With fixed gains of 20, 50, 60 and 100 for applications that demand high accuracy over temperature. The low input offset voltage allows the use of smaller sense resistors without sacrificing system error. Plus with a wide operating temperature range of -40⁰ to +125⁰C the LMP8481 is an ideal choice for automotive, telecommunications, industrial, and consumer applications.

Save Space & Power

Supply range same as Common Mode Voltage Range saving you the cost of additional regulator. Plus low input offset voltage allows the use of a smaller shunt without sacrificing system error.

Precise Measurements

667mV max differential input voltage enables monitoring a wide dynamic range precisely

Multitalented

With a wide operating temperature range of -40⁰ to +125⁰C the LMP8481 is an ideal choice for automotive, telecommunications, industrial, and consumer applications.

 
 
   

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