AM411

Low-Cost Voltage Transmitter IC

March 2015 - Rev. 4.0

Page 3/10

www.analogmicro.de

FEATURES

•

supply voltage range: 6 .. 35 V

•

operating temperature range:

-40 °C .. +85 °C

•

voltage reference: 5 V (max. 10 mA)

•

differential input voltage range:

VIN = 0 .. ±600 mV

•

large common-mode input range:

1.5 .. 6.0 V

•

output voltage up to 13 V

•

adjustable gain and offset

•

several integrated protection functions:

- reverse polarity protection

- protection against permutation

of VCC, VOUT, GND

- output current limitation

- short circuit protection

•

ESD protection

•

REACH and RoHS conform

GENERAL DESCRIPTION

AM411 is a universal voltage amplifier / transmit-

ter IC for signal-conditioning applications. It con-

verts a differential input voltage into an amplified,

single-ended output voltage. Using this IC stan-

dardized industrial output voltage ranges (e.g.

0 .. 5, 0 .. 10 V, 1 .. 5 V) can easily be realized.

The IC consists of an instrumentation amplifier

with adjustable offset as input stage and an op-

erational amplifier output stage with adjustable

gain. Offset and gain can be set using external

resistors. A reference voltage source delivering 5

V with a source current up to 10 mA can be used

to power external components (e.g. measurement

bridges, microcontrollers).

The IC is internally protected against reverse po-

larity and permutation of VCC, VOUT and GND.

Furthermore it is protected against short circuit of

VOUT by an integrated output current limitation.

With its industrial voltage output, protection func-

tions and wide input voltage range AM411 is suit-

able for a large variety of transducers and sen-

sors.

BLOCK DIAGRAM

Figure 1: AM411’s block diagram