FEATURES

DIFFERENTIAL GAIN = 1V/V TO 1000V/V:

Set with External Resistors

LOW QUIESCENT CURRENT: 570mA

WIDE SUPPLY RANGE:

Single Supply: 4.5V to 36V

Dual Supplies: ±2.25V to ±18V

HIGH COMMON-MODE VOLTAGE:

+8V at VS = +5V

±28V at VS = ±15V

LOW GAIN ERROR: 0.01%

HIGH CMR: 86dB

SO-8 PACKAGE

APPLICATIONS

CURRENT SHUNT MEASUREMENTS

SENSOR AMPLIFIER

DIFFERENTIAL LINE RECEIVER

BATTERY POWERED SYSTEMS

DESCRIPTION

The INA145 is a precision, unity-gain difference

amplifier consisting of a precision op amp and onchip

precision resistor network. Two external resistors

set the gain from 1V/V to 1000V/V. The input common-

mode voltage range extends beyond the positive

and negative rails.

On-chip precision resistors are laser-trimmed to achieve

accurate gain and high common-mode rejection. Excellent

TCR tracking of these resistors assures continued

high precision over temperature.

The INA145 is available in the SO-8 surface-mount

package specified for the extended industrial temperature

range, –40°C to +85°C.