1 Features

• Common-mode range (VCM): –0.2 V to +26 V

• High bandwidth: 350 kHz (A1 devices)

• Offset voltage:

– ±150 μV (maximum) at VCM = 0 V

– ±500 μV (maximum) at VCM = 12 V

• Output slew rate: 2 V/μs

• Accuracy:

– ±1% gain error (maximum)

– 1-μV/°C offset drift (maximum)

• Gain options:

– 20 V/V (A1 devices)

– 50 V/V (A2 devices)

– 100 V/V (A3 devices)

– 200 V/V (A4 devices)

• Quiescent current: 260 μA maximum (INA180)

2 Applications

• Motor control

• Battery monitoring

• Power management

• Lighting control

• Overcurrent detection

• Solar inverters

3 Description

The INA180, INA2180, and INA4180 (INAx180)

current sense amplifiers are designed for costoptimized

applications. These devices are part of a

family of current-sense amplifiers (also called currentshunt

monitors) that sense voltage drops across

current-sense resistors at common-mode voltages

from –0.2 V to +26 V, independent of the supply

voltage. The INAx180 integrate a matched resistor

gain network in four, fixed-gain device options: 20

V/V, 50 V/V, 100 V/V, or 200 V/V. This matched gain

resistor network minimizes gain error and reduces the

temperature drift.

All these devices operate from a single 2.7-V to 5.5-

V power supply. The single-channel INA180 draws

a maximum supply current of 260 μA; whereas,

the dual-channel INA2180 draws a maximum supply

current of 500 μA, and the quad channel draws a

maximum supply current of 900 μA.

The INA180 is available in a 5-pin, SOT-23 package

with two different pin configurations. The INA2180 is

available in 8-pin, VSSOP and WSON packages. The

INA4180 is available in a 14-pin, TSSOP package.

All device options are specified over the extended

operating temperature range of –40°C to +125°C.