FEATURES

• Supply voltage: 6...35V

• Wide working temperature range:

–40°C...+85°C

• Adjustable integrated reference voltage

source: 4.5 to 10V

• Additional voltage/current source

• Adjustable amplification

• Adjustable offset

• Industrial current output (e.g.

0/4...20mA)

• Protection against reverse polarity

• Short-circuit protection

• Output current limitation

• Low-cost device: replaces a number of

discrete elements

• 2- and 3-wire operation

• Individually configurable function

modules

• RoHS compilant

GENERAL DESCRIPTION

AM462 is a universal V/I converter and

amplifier IC with a number of additional

functions. The IC basically consists of an

amplifier, whose gain can be set externally,

and an output stage which can convert voltage

signals referenced to ground to industrial

current signals. An additional reference

voltage source for the supply of external

components is also included in the device. A

further operational amplifier can be connected

up as a current source, voltage reference or

comparator.

One of the main features of the IC is its

integrated protective circuitry. The device is

protected against reverse polarity and has a

built-in output current limit. Converter IC

AM462 enables industrial current loop signals

(e.g. of 0/4–20mA) to be produced relatively

easily.

Using the Frame ASIC concept [1] the IC can

be connected up to a processor for signal

correction.