BurrBrown Products

from Texas Instruments

INA203

INA203

INA203

FEATURES

DESCRIPTION

APPLICATIONS

1

2

3

4

5

10

9

8

7

6

V

IN+

V

IN

-

CMP1OUT

CMP2OUT

CMP1 RESET

V

S

OUT

CMP1IN+

CMP2IN+

GND

INA203 INA205

-

MSOP-10

0.6VREF

1

2

3

4

5

6

7

14

13

12

11

10

9

8

V

IN+

V

IN

-

1.2VREFOUT

CMP1OUT

CMP2OUT

CMP2DELAY

CMP1 RESET

V

S

OUT

CMP1IN /0.6VREF

-

CMP1IN+

CMP2IN+

CMP2IN /0.6VREF

-

GND

INA203 INA205

-

SO-14,TSSOP-14

1.2VREF

INA203

INA204

INA205

SBOS393 – MARCH 2007

Unidirectional Measurement

Current-Shunt Monitor with Dual Comparators

• COMPLETE CURRENT SENSE SOLUTION

The INA203, INA204, and INA205 are a family of

unidirectional, current-shunt monitors with voltage

• DUAL COMPARATORS:

output, dual comparators, and voltage reference. The

–

Comparator 1 with Latch

INA203, INA204, and INA205 can sense drops

–

Comparator 2 with Optional Delay

across shunts at common-mode voltages from –16V

• COMMON-MODE RANGE: –16V to +80V

to +80V. The INA203, INA204, and INA205 are

available with three output voltage scales: 20V/V,

• HIGH ACCURACY: 3.5% (max) Over

50V/V, and 100V/V, with up to 500kHz bandwidth.

Temperature

The INA203, INA204, and INA205 also incorporate

• BANDWIDTH: 500kHz

two

open-drain

comparators

with

internal

0.6V

• QUIESCENT CURRENT: 1.8mA

references. On 14-pin versions, the comparator

• PACKAGES: SO-14, TSSOP-14, MSOP-10

references can be overridden by external inputs.

Comparator 1 includes a latching capability, and

Comparator 2 has a user-programmable delay.

14-pin versions also provide a 1.2V reference output.

• NOTEBOOK COMPUTERS

• CELL PHONES

The INA203, INA204, and INA205 operate from a

single +2.7V to +18V supply. They are specified over

• TELECOM EQUIPMENT

the extended operating temperature range of –40

°C

• AUTOMOTIVE

to +125

°C.

• POWER MANAGEMENT

• BATTERY CHARGERS

• WELDING EQUIPMENT

DEVICE

GAIN

INA203

20V/V

INA204

50V/V

INA205

100V/V

RELATED PRODUCTS

FEATURES

PRODUCT

Variant of INA203–INA205 Comparator 2 polarity

INA206–INA208

Current-shunt monitor with single Comparator

INA200–INA202

Current-shunt monitor only

INA193–INA198

Current-shunt monitor with split stages for filter

INA270–INA271

options

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.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007, 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.