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.
| ICs | Description | Links |
|---|
 | AM400 - Universal Amplifier and V/I-Converter IC
- Input: differential voltage 0 ... ±400 mV or single-ended voltage 0 ... 5 V
- Output: voltage and current signal possible in parallel
- Integrated voltage and current source
- Short circuit, reverse polarity, overvoltage protection
| |
 | AM402 - 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
| |
 | AM422-1 - 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
| |
 | AM422-2 - 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
| |
 | AM452 - 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
| |
 | AM460 - Industrial Amplifier and V/I-Converter IC
- Input: single-ended voltage 0 ... 5 V
- Output: voltage and current signal possible in parallel
- Integrated current and voltage source
- Short circuit, reverse polarity, overvoltage protection
| |
 | AM462 - Industrial V/I-Converter IC
- Input: single-ended voltage 0 ... 5 V
- Current output: three-wire or current-loop possible
- Integrated voltage and current source
- Short circuit, reverse polarity, overvoltage protection
| |
V/I-Converter