Low Power, Single-Supply Difference Amplifier

The INA132 is a low-power, unity-gain

differential 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 common-mode rejection over temperature. The internal op amp common-mode

range extends to the negative supply—an excellent choice for single-supply

applications. The INA132 operates on single (2.7V to 36V) or dual (±1.35V to ±18V)

supplies.

The differential amplifier is the

foundation of many commonly used circuits. The INA132 provides this circuit function

without using an expensive precision resistor network. The INA132 is available in an

SO-8 surface-mount package and operates over the industrial temperature range of

–40°C to +85°C.