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.