Signal Conditioning ICs

Properties
Package: SOP8

AM422-1 is a compact voltage-to-current converter IC for 3-wire operation with integrated protection functions and voltage source. It converts a single-ended input voltage into a current output signal with adjustable offset and gain. The IC is especially suitable for price sensitive industrial applications with single-ended input signals.

AM422-2 is a voltage-to-current converter IC with integrated protection functions especially suitable for industrial sensing and signal-conditioning in current-loop applications. It converts a single-ended input voltage into a current output signal (e.g. 4 .. 20 mA) with adjustable offset and full-scale current.

Input: single ended
Output: 0/4...20mA

Block Diagram

Block Diagram AM422

Features

  • Wide Supply Voltage Range: 6...35V
  • Wide Operating Temperature Range: -40°C...+85°C
  • Internal Voltage Reference for Transducer Excitation
  • Operational Amplifier Input
  • Adjustable Gain and Offset
  • Analog Current Output: Three Wire (AM422-1: 0/4...20mA) or Two Wire Output (AM422-2: 4...20mA)
  • Protection Against Reverse Polarity
  • Input Voltage Limitation

Applications

  • Sensor Current Transmitter (for example pressure)
  • Programmable Current Source
Properties

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