AM452 is a voltage-to-current converter IC with integrated protection functions suitable for sensing applications with current driven Wheatstone bridges. It converts a differential input voltage into an adjustable current output signal. The IC is suitable for two- and three-wire operation and compatible with HART-modems.
Applications
Sensor signal-conditioner
Current-loop transmitter
Protected V/I-converter
Compatible with HART-modems
Industrial network driver
Industrial process control
Short Specifications
Supply Voltage (VCC)
6 .. 35 V (typ. 24 V)
Input voltage range
0 .. ±400 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)
Current source
0 .. 10 mA, adjustable
Temperature range
-40 °C .. 85 °C
Protected against:
Short circuit, reverse polarity, overvoltage
Package / Delivery forms
SO16(n), on DIL16-adapter, sawn 6″ wafer on blue foil