INA21x

V+

OUT

GND

IN-

IN+

C

BYPASS

0.01 F

m

to

0.1 F

m

2.7 V to 26 V

REF

Reference

Voltage

Supply

Load

R

SHUNT

Output

R

1

R

3

R

2

R

4

PRODUCT

R and R

3

4

INA210

INA211

INA212

INA213

INA214

5 kW

2 kW

1 kW

20 kW

10 kW

R and R

1

2

1 MW

1 MW

1 MW

1 MW

1 MW

GAIN

200

500

1000

50

100

SC70

INA215

13.3 kW

1 MW

75

V

= (I

R

) Gain + V

´

OUT

LOAD

SHUNT

REF

Copyright © 2017, Texas Instruments Incorporated

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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. PRODUCTION DATA.

INA210, INA211, INA212, INA213, INA214, INA215

SBOS437J – MAY 2008 – REVISED FEBRUARY 2017

INA21x Voltage Output, Low- or High-Side Measurement, Bidirectional,

Zero-Drift Series, Current-Shunt Monitors

1

1 Features

1

•

Wide Common-Mode Range: –0.3 V to 26 V

•

Offset Voltage: ±35 μV (Maximum, INA210)

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

•

Accuracy:

–

Gain Error (Maximum Over Temperature):

–

±0.5% (Version C)

–

±1% (Versions A and B)

–

0.5-µV/°C Offset Drift (Maximum)

–

10-ppm/°C Gain Drift (Maximum)

•

Choice of Gains:

–

INA210: 200 V/V

–

INA211: 500 V/V

–

INA212: 1000 V/V

–

INA213: 50 V/V

–

INA214: 100 V/V

–

INA215: 75 V/V

•

Quiescent Current: 100 μA (Maximum)

•

SC70 and Thin UQFN Packages: All Models

2 Applications

•

Notebook Computers

•

Cell Phones

•

Telecom Equipment

•

Power Management

•

Battery Chargers

3 Description

The

INA21x

are

voltage-output,

current-shunt

monitors (also called current-sense amplifiers) that

are

commonly

used

for

overcurrent

protection,

precision-current

measurement

for

system

optimization, or in closed-loop feedback circuits. This

series of devices can sense drops across shunts at

common-mode voltages from –0.3 V to 26 V,

independent of the supply voltage. Six fixed gains are

available: 50 V/V, 75 V/V, 100 V/V, 200 V/V, 500 V/V,

or 1000 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.

These devices operate from a single 2.7-V to 26-V

power supply, drawing a maximum of 100 µA of

supply current. All versions are specified over the

extended

operating

temperature

range

(–40°C to +125°C), and offered in SC70 and UQFN

packages.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

INA21x

SC70 (6)

2.00 mm × 1.25 mm

UQFN (10)

1.80 mm × 1.40 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic