W

1

W

2

W

2

W

1

W

2

W

2

Bus Supply

±14 V to +80 V

Load

Zer -

Drift

W

W

1

W

1

OUT

REF2

REF1

GND

2.7 V to 18 V

V+

+IN

±IN

Output

PRODUCT

GAIN

50 V/V

100 V/V

INA286

200 V/V

INA283

500 V/V

INA284

1000 V/V

INA285

INA282

33.3 k



33.3 k



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Folder

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INA282, INA283, INA284, INA285, INA286

SBOS485C – NOVEMBER 2009 – REVISED MAY 2015

INA28x High-Accuracy, Wide Common-Mode Range, Bidirectional

Current Shunt Monitors, Zero-Drift Series

1 Features

3 Description

The INA28x family includes the INA282, INA283,

1

•

Wide Common-Mode Range: –14 V to +80 V

INA284, INA285, and INA286 devices. These devices

•

Offset Voltage: ±20

μV

are voltage output current shunt monitors that can

•

CMRR: 140 dB

sense

drops

across

shunts

at

common-mode

voltages from –14 V to +80 V, independent of the

•

Accuracy:

supply voltage. The low offset of the zero-drift

–

±1.4% Gain Error (Max)

architecture enables current sensing with maximum

–

0.3

μV/°C Offset Drift

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

–

0.005%/°C Gain Drift (Max)

These current sense amplifiers operate from a single

•

Available Gains:

+2.7-V to +18-V supply, drawing a maximum of 900

μA of supply current. These devices are specified

–

50 V/V: INA282

over the extended operating temperature range of

–

100 V/V: INA286

–40°C to +125°C, and offered in SOIC-8 and

–

200 V/V: INA283

VSSOP-8 packages.

–

500 V/V: INA284

Device Information(1)

–

1000 V/V: INA285

ORDER NUMBER

PACKAGE

BODY SIZE (NOM)

•

Quiescent Current: 900

μA (Max)

SOIC (8)

4.90 mm x 3.91 mm

INA28x

VSSOP (8)

3.00 mm x 3.00 mm

2 Applications

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

•

Telecom Equipment

at the end of the datasheet.

•

Automotive

•

Power Management

•

Solar Inverters

Detailed Block Diagram

1

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. PRODUCTION DATA.