1 Features

• Wide Common-Mode Range: 2.7 V to 26 V

• Offset Voltage: ±170 μV (Maximum)

(Enables Shunt Drops of 10-mV Full-Scale)

• Accuracy:

– Gain Error ±0.4% (Maximum Over

Temperature):

– 0.5-μV/°C Offset Drift (Maximum)

– 10-ppm/°C Gain Drift (Maximum)

• Choice of Gains:

– INA183A1: 50 V/V

– INA183A2: 100 V/V

– INA183A3: 200 V/V

• Quiescent Current: 130 μA (Maximum)

• Package: 5-Pin SOT-23

2 Applications

• Servers

• Power Supplies

• Battery Management

• Telecom Equipment

3 Description

The INA183 is a high-precision voltage-output,

current-shunt monitor (also called current-sense

amplifier) commonly used for overcurrent

protection, precision-current measurement for system

optimization, or in closed-loop feedback circuits. This

device can sense drops across shunt resistors at

common-mode voltages from 2.7 V to 26 V. Three

fixed gains are available: 50 V/V, 100 V/V, and

200 V/V. The low offset of the zero-drift architecture

enables current sensing with maximum drops across

the shunt as low as 10-mV full-scale.

This device operates by drawing power from the IN+

pin drawing a maximum of 130 μA of supply current.

All versions are specified from –40 °C to 125 °C and

are offered in the 5-pin SOT-23 package.