FEATURES
HIGH COMMON-MODE VOLTAGE:
+75V at VS = +5V
±200V at VS = ±15V
FIXED DIFFERENTIAL GAIN = 1V/V
LOW QUIESCENT CURRENT: 260mA
WIDE SUPPLY RANGE:
Single Supply: 2.7V to 36V
Dual Supplies: ±1.35V to ±18V
LOW GAIN ERROR: 0.075% max
LOW NONLINEARITY: 0.002% max
HIGH CMR: 86dB
SO-8 PACKAGE

APPLICATIONS
CURRENT SHUNT MEASUREMENTS
DIFFERENTIAL SENSOR AMPLIFIERS
LINE RECEIVERS
BATTERY POWERED SYSTEMS
AUTOMOTIVE INSTRUMENTATION
STACKED CELL MONITORS

DESCRIPTION
The INA148 is a precision, low-power, unity-gain
difference amplifier with a high common-mode input
voltage range. It consists of a monolithic precision
bipolar op amp with a thin-film resistor network.
The on-chip resistors are laser trimmed for an accurate
1V/V differential gain and high common-mode
rejection. Excellent temperature tracking of the resistor
network maintains high gain accuracy and common-
mode rejection over temperature. The INA148
will operate on single or dual supplies.
The INA148 is available in a small SO-8 surfacemount
package and it is specified for the –40°C to
+85°C extended industrial temperature range.