SC70

Package

QFN

Package

INA199Ax

V+

OUT

GND

IN-

IN+

C

BYPASS

0.01 F

m

to

0.1 F

m

+2.7Vto+26V

REF

Reference

Voltage

Supply

Load

R

SHUNT

Output

R

1

R

3

R

2

R

4

INA199A1

INA199A2

INA199A3

www.ti.com

SBOS469B – MAY 2009 – REVISED FEBRUARY 2010

Voltage Output, High or Low Side Measurement, Bi-Directional Zerø-Drift Series

CURRENT SHUNT MONITOR

Check for Samples: INA199A1, INA199A2, INA199A3

1

FEATURES

DESCRIPTION

2

•

WIDE COMMON-MODE RANGE: –0.3V to 26V

The INA199Ax series of voltage output current shunt

monitors

can

sense

drops

across

shunts

at

•

OFFSET VOLTAGE: ±150mV (Max)

common-mode

voltages

from

–0.3V

to

26V,

(Enables shunt drops of 10mV full-scale)

independent of the supply voltage. Three fixed gains

•

ACCURACY

are available: 50V/V, 100V/V, and 200V/V. The low

–

±1.5% Gain Error (Max over temperature)

offset of the Zerø-Drift architecture enables current

sensing with maximum drops across the shunt as low

–

0.5mV/°C Offset Drift (Max)

as 10mV full-scale.

–

10ppm/°C Gain Drift (Max)

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

•

CHOICE OF GAINS:

power supply, drawing a maximum of 100mA of

–

INA199A1: 50V/V

supply current. All versions are specified from –40°C

–

INA199A2: 100V/V

to +105°C, and offered in both SC70 and thin

QFN-10 packages.

–

INA199A3: 200V/V

•

QUIESCENT CURRENT: 100mA (max)

PRODUCT FAMILY TABLE

•

PACKAGES: SC70, THIN QFN-10

PRODUCT

GAIN

INA199A1

50

20k

Ω

1M

Ω

APPLICATIONS

INA199A2

100

10k

Ω

1M

Ω

•

NOTEBOOK COMPUTERS

INA199A3

200

5k

Ω

1M

Ω

•

CELL PHONES

•

TELECOM EQUIPMENT

•

POWER MANAGEMENT

•

BATTERY CHARGERS

•

WELDING EQUIPMENT

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2009–2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.