FEATURES
· Wide differential input voltage range
(±5 mV FS...±100 mV FS)
· Low offset
· Low offset drift
· Low input noise
· High CMRR: > 120 dB
· Wide operating temperature range:
– 40 °C... +125 °C
· Adjustable span of output signal
· Adjustable offset of output signal
· Rail-to-rail output stage:
VOUT = 0.2 V ... VCC – 0.2 V
· Sink/source output
· Single ratiometric supply: VCC = 5 V
· Integrated EMV protective functions
· Overvoltage protection 12 V
· Integrated ESD protective functions
· Short-circuit-proofing
· Small-scale design
· Low cost circuit
GENERAL DESCRIPTION
AM467 is a high-precision integrated amplifier
which has been developed as signal condition
circuit for small differential input voltages within
a range of a few millivolts (±5 to ±100 mV FS).
The chief component of the IC is a highly
accurate, low-noise amplifier circuit which can
be adjusted to the sensing elements using an
external network of resistors. Offset and span of
the output signal are adjustable in the range of
0.2 to Vcc-0.2Volt.
The rail-to-rail output makes the IC suitable for
the amplification of DMS and piezoceramic
sensing elements and GMR measuring cells with
respect to the specific calibration network.