Part Details for MAX4162 by Maxim Integrated Products
Overview of MAX4162 by Maxim Integrated Products
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Part Details for MAX4162
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Reference Designs related to MAX4162
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Optocoupler Extends High-Side Current Sensor to 1kV
This application note describes the use of a current-sense amplifier along with an optocoupler to extend the operating voltage range up to 1,000 volts for high-voltage applications. The circuit relies on the optocoupler's isolation barrier to separate the high-side and grounded side of the 1,000V system. Op amps are used to eliminate photodiode non-linearity and drift and provide an accurate output voltage proportional to the load on the 1kV supply.