Thursday, February 22, 2024

How to build a millivolt signal conditioning circuit with compensation?

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    anoop_ambalakkandy
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      I want to build a miniature circuit which perform the following:
      1. Measure a voltage signal between 0-20 millivolt DC signal
      2. Measure a voltage signal between 0-24 V DC signal
      3. Calculating a compensation factor as K = a Constant/voltage measured at step2
      4. Multiply the compensation factor K with millivolt signal of step1
      5. Transmit value got in step4 as standard 4-20Ma[500 Ohm] /RS485 signals
      I want the circuit to be made on a single board with ICs [as tiny as possible].
      Thank you.

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