Pressure Sensors
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Application Notes


AM402 - Voltage-to-Current Converter IC

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Package variants of the V/I-converter IC AM402
AM402 is a voltage-to-current converter IC with integrated protection functions and voltage source. It converts a differential input voltage into a current output signal with adjustable offset and gain. AM402 is particularly suitable for industrial sensing and signal-conditioning in two- or three-wire applications.


  • Sensor signal-conditioner
  • Current-loop transmitter
  • Industrial current output driver
  • Protected V/I-converter
  • Factory automation
  • Industrial process control

Short Specifications

Supply voltage (VCC)

6 .. 35 V (typ. 24 V)

Input voltage range

0 .. 580 mV (differential)

Current output

e.g. 4 .. 20 mA (two-wire) and 0 .. 20 mA (three-wire), adjustable

Reference voltage source

5 / 10 V (max. 10 mA)

Temperature range

-40 °C .. 85 °C

Protection functions

Short circuit protection, reverse polarity protection, output current limitation

Package / Delivery forms

SO16(n), on DIL16-adapter, sawn 6″ wafer on blue foil