INA2180 (dual-channel)

INA180 (single-channel)

2.7 V to 5.5 V

ADC

Microcontroller

Up To 26 V

GND

VS

Load

IN±

IN+

OUT

+

±

0.1 µF

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.

INA180, INA2180

SBOS741A – APRIL 2017 – REVISED AUGUST 2017

INAx180 Low- and High-Side Voltage Output,

Current-Sense Amplifier

1

1 Features

1

•

•

High Bandwidth: 350 kHz

•

Offset Voltage:

–

–

•

Output Slew Rate: 2 V/µs

•

Accuracy:

–

±1% Gain Error (Max)

–

1-µV/°C Offset Drift (Max)

•

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 (Max)

2 Applications

•

Motor Control

•

Battery Monitoring

•

Power Management

•

Lighting Control

•

Overcurrent Detection

•

Solar Inverters

3 Description

The INA180 and INA2180 (INAx180) current sense

amplifiers

are

designed

for

cost-optimized

applications. These devices are part of a family of

current-sense amplifiers (also called current-shunt

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.

Both the INA180 and INA2180 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 520 µA..

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

with two different pin configurations. The INA2180 is

available in an 8-pin VSSOP package. All device

options are specified over the extended operating

temperature range of –40°C to +125°C.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

INA180

SOT-23 (5)

2.90 mm × 1.60 mm

INA2180(2)

VSSOP (10)

3.00 mm × 3.00 mm

(1) For all available packages, see the package option addendum

at the end of the datasheet.

(2) INA2180 is preview device.

Typical Application Circuit