FEATURES

RAIL-TO-RAIL OUTPUT SWING: Within 10mV

LOW OFFSET VOLTAGE: ±200mV

LOW OFFSET DRIFT: ±5mV/°C

INTERNAL FIXED GAIN = 10V/V OR 50V/V

SPECIFIED TEMPERATURE RANGE:

–55°C to +125°C

LOW INPUT BIAS CURRENT: 0.2pA

WIDE BANDWIDTH: 550kHz in G = 10

HIGH SLEW RATE: 6.5V/ms

LOW COST

SO-8 AND TINY MSOP-8 PACKAGES

APPLICATIONS

INDUSTRIAL SENSOR AMPLIFIERS

Bridge, RTD, Thermocouple, Flow, Position

MEDICAL EQUIPMENT

ECG, EEG, EMG Amplifiers

DRIVING A/D CONVERTERS

PCMCIA CARDS

AUDIO PROCESSING

COMMUNICATIONS

TEST EQUIPMENT

LOW COST AUTOMOTIVE INSTRUMENTATION

DESCRIPTION

The INA155 is a low-cost CMOS instrumentation

amplifier with rail-to-rail output swing optimized for

low voltage, single-supply operation.

Wide bandwidth (550kHz in G = 10) and high slew

rate (6.5V/ms) make the INA155 suitable for driving

sampling A/D converters as well as general purpose

and audio applications. Fast settling time allows use

with higher speed sensors and transducers and rapid

scanning data acquisition systems.

Gain can be set to 10V/V or 50V/V by pin strapping.

Gains between these two values can be obtained with

the addition of a single resistor. The INA155 is fully

specified over the supply range of +2.7 to +5.5V.

The INA155 is available in MSOP-8 and SO-8 surface-

mount packages. Both are specified for operation

over the temperature range –55°C to 125°C.