FEATURES
DESIGNED FOR LOW COST
LOW OFFSET VOLTAGE: ±500mV max
LOW OFFSET DRIFT: ±2mV/°C
LOW GAIN ERROR: ±0.05% max
WIDE BANDWIDTH: 3MHz
HIGH SLEW RATE: 14V/ms
FAST SETTLING TIME: 3ms to 0.01%
WIDE SUPPLY RANGE: ±4V to ±18V
LOW QUIESCENT CURRENT: 2.4mA
SO-8 SURFACE-MOUNT PACKAGE

APPLICATIONS
DIFFERENTIAL INPUT AMPLIFIER
INSTRUMENTATION AMPLIFIER
BUILDING BLOCK
G = 1/2 AMPLIFIER
G = 2 AMPLIFIER
DIFFERENTIAL CURRENT RECEIVER
VOLTAGE-CONTROLLED CURRENT SOURCE
GROUND LOOP ELIMINATOR
CURRENT SHUNT MONITOR

DESCRIPTION
The INA157 is a high slew rate, G = 1/2 or G = 2
difference amplifier consisting of a precision op amp
with a precision resistor network. The on-chip resistors
are laser trimmed for accurate gain and high
common-mode rejection. Excellent TCR tracking of
the resistors maintains gain accuracy and commonmode
rejection over temperature. The input commonmode
voltage range extends beyond the positive and
negative supply rails. It operates on ±4V to ±18V
supplies.
The difference amplifier is the foundation of many
commonly used circuits. The INA157 provides this
circuit function without using an expensive precision
resistor network. The INA157 is available in a SO-8
surface-mount package and is specified for operation
over the extended industrial temperature range, –40°C
to +85°C.