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

Zero-Drift Series, Current-Shunt Monitors

1 Features

• Updated format to match new TI layout and flow.

Tables, figures and cross-references use a new

numbering sequence throughout the document.

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

PART NUMBER

PACKAGE(1)

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.

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

Simplified Schematic

INA210, INA211, INA212, INA213, INA214, INA215

SBOS437K – MAY 2008 – REVISED NOVEMBER 2023

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.