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.
Applications
Sensor signal-conditioner
Current-loop transmitter
Protected V/I-converter IC
Analog back end for µC
Voltage driven current source
Industrial process control
Short Specifications
Supply Voltage (VCC)
6 .. 35 V (typ. 24 V)
Input voltage range
0 .. 1.15 V (single-ended)
Current output
e.g. 4 .. 20 mA (two-wire current-loop), adjustable
Reference voltage source
5 / 10 V (max. 10 mA)
Temperature range
-40 °C .. 85 °C
Protection functions
Reverse polarity protection, output current limitation