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

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Design

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.

INA199-Q1

SBOS781A – MARCH 2016 – REVISED MAY 2016

INA199-Q1 Automotive, 26-V, Bidirectional, Zero-Drift, Low- or High-Side,

Voltage-Output, Current-Shunt Monitor

1

1 Features

1

•

Qualified for Automotive Applications

•

AEC-Q100 Qualified With the Following Results:

–

Device Temperature Grade 1: –40°C to

+125°C Ambient Operating Temperature

–

Device HBM ESD Classification Level 2

–

Device CDM ESD Classification Level C6

•

Wide Common-Mode Range: –0.1 V to 26 V

•

Offset Voltage: ±150

μV (Maximum)

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

•

Accuracy:

–

±1.5% Gain Error (Maximum Over

Temperature)

–

0.5-

μV/°C Offset Drift (Maximum)

–

10-ppm/°C Gain Drift (Maximum)

•

Choice of Gains:

–

INA199B1-Q1: 50 V/V

–

INA199B2-Q1: 100 V/V

–

INA199B3-Q1: 200 V/V

•

Quiescent Current: 100

μA (Maximum)

•

Package: 6-Pin SC70

2 Applications

•

Mirrors

•

Brake Systems

•

EGR Valves

•

Power Seats

•

Body Control Modules

•

Electric Windows

•

Seat Heaters

•

Wireless Charging

3 Description

The INA199-Q1 family is a series of voltage-output,

current-sense amplifiers that can sense drops across

shunts at common-mode voltages from –0.1 V to

26 V, independent of the supply voltage. Three fixed

gains are available: 50 V/V, 100 V/V, and 200 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 from –40°C

to +125°C, and are offered in a 6-pin SC70 package.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

INA199-Q1

SC70 (6)

2.00 mm × 1.25 mm

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

the end of the data sheet.

Simplified Schematic