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Voltage-to-Current Converter - Overview

Analog Microelectronics offers an extensive range of voltage-to-current converter ICs. The voltage-to-current converter product family comprises ICs for differential or single-ended input voltages with current output stages with adjustable output signal (e.g. 0 ... 20 mA or 4 ... 20 mA) for current-loop or single ended 3-wire operation. All ICs offer various protection functions (e.g. short circuit, reverse polarity, overvoltage protection), an internal voltage reference and are suitable for an industrial voltage range of 6 to 35 V. At a supply voltage of 24 V load resistors up to 500 Ω can be used.

The integrated circuits are used for sensor signal conditioning, factory automation, industrial process control or as output stage with integrated protection functions.

The V/I-converter ICs RoHS and Reach compliant and available in different packages or as sawn wafer on blue foil.

ICsDescriptionLinks
Thumbnail: Package variants of the V/I-converter and voltage amplifier IC AM400AM400 - Universal Amplifier and V/I-Converter IC
  • Input: differential voltage 0 .. ±400 mV or single-ended voltage 0 .. VCC - 5 V
  • Output: voltage and current signal possible in parallel
  • Integrated voltage and current source, Protection functions
Thumbnail: Package variants of the V/I-converter IC AM402AM402 - V/I-Converter IC for Differential Input
  • Input: differential voltage 0 .. ±580 mV
  • Current output: three-wire or current-loop possible
  • Integrated voltage reference, supplying external components
  • Output current limitation, short circuit, reverse polarity protection
Thumbnail: Package variants of the V/I-converter IC AM422-1AM422-1 - Compact V/I-Converter IC for 3-Wire Operation
  • Input: single-ended voltage 0 .. 1.15 V
  • Current output: three-wire (e.g. 0 .. 20 mA)
  • Integrated voltage reference, supplying external components
  • Reverse polarity protection, output current limitation
Thumbnail: Package variants of the V/I-converter IC AM422-2AM422-2 - Compact V/I-Converter IC for Current-Loop Applications
  • Input: single-ended voltage 0 .. 1.15 V
  • Current output: current-loop (e.g. 4 .. 20 mA)
  • Integrated voltage reference, supplying external components
  • Reverse polarity protection, output current limitation
Thumbnail: Package variants of the V/I-converter IC AM452AM452 - V/I-Converter IC for Wheatstone-Bridge Inputs
  • Input: differential voltage 0 .. ±400 mV
  • Current output: three-wire or current-loop possible
  • Suitable for HART-applications
  • Short circuit, reverse polarity, overvoltage protection
Thumbnail: Package variants of the V/I-converter and voltage amplifier IC AM460AM460 - Industrial Amplifier and V/I-Converter IC
  • Input: single-ended voltage 0 .. VCC - 5 V
  • Output: voltage and current signal possible in parallel
  • Integrated current and voltage source
  • Short circuit, reverse polarity, overvoltage protection
Thumbnail: Package variants of the V/I-converter IC AM462AM462 - Industrial V/I-Converter IC
  • Input: single-ended voltage 0 .. VCC - 5 V
  • Current output: three-wire or current-loop possible
  • Integrated voltage and current source
  • Short circuit, reverse polarity, overvoltage protection