GENERAL DESCRIPTION

The AD22055 accepts a differential signal from a bridge transducer whose common-mode signal can be anywhere between the power supplies.

The extended temperature range allows for local signal conditioning for oil and hydraulic pressure sensors as well as other automotive sensors.

The use of an external gain resistor allows the user to compensate transducer gain error and temperature drift.

FEATURES

Gain of 400. Alterable from 40 to 1000

Output Span 20 mV to (VS – 0.25) V

1 Pole Low-Pass Filtering Available

Offset Capability

Differential Input Resistance 230 kΩ

Drives 1 kΩ Load to +4 V Using VS = +5 V

Supply Voltage: +3 V to +36 V

Transient Spike Protection and RFI Filters Included

Peak Input Voltage (40 ms): 60 V

Reversed Supply Protection: –34 V

Operating Temperature Range: –40°C to +125°C

APPLICATIONS

Interface for Pressure Transducers, Position

Indicator, Strain Gages and Other Low Level Signal

Sources