DESCRIPTION

AM402 is a monolithically integrated current

converter which has been specially developed

for the processing of differential bridge sig-

nals. AM402 is suitable for two- and three-

wire applications and has four function blocks.

A high-precision instrumentation amplifier

(IA) serves as an input stage. A reference volt-

age source, which can be adjusted to values of

between
4.5 and 10V, excites external compo-

nents and a voltage-controlled current output

stage converts the voltage signal. It is thus

possible to generate output currents which cor-

respond to the normal industrial standards

(0/4–20mA, 12

± 8mA).