LT1787 データシートの表示（PDF） - Linear Technology

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LT1787

Precision, High Side Current Sense Amplifiers

Linear Technology 

LT1787/LT1787HV

TYPICAL APPLICATION

Split or Single Supply Operation, Bidirectional Output into A/D

IS = ±125mA

VSRCE

≈4.75V

1Ω

1%

1 FIL–

2 VS–

FIL+ 8

LT1787 VS+ 7

3

DNC

VEE

–5V

4

VEE

VBIAS 6

20k

5

VOUT

VOUT (±1V)

OPTIONAL SINGLE

SUPPLY OPERATION:

DISCONNECT VBIAS

FROM GROUND

AND CONNECT IT TO VREF.

REPLACE –5V SUPPLY

WITH GROUND.

OUTPUT CODE FOR ZERO

CURRENT WILL BE ~2430

VCC

5V

10µF

16V

1

7

CONV

2

3

10µF

AIN LTC1404 CLK

VREF

GND

DOUT

6

5

16V

48

CLOCKING

CIRCUITRY

10µF DOUT

16V

VEE

–5V

1787 TA02

RELATED PARTS

PART NUMBER

LTC1043

LT1490/LT1491

DESCRIPTION

Dual Precision Instrumentation Switched Capacitor Building Block

Dual and Quad Micropower Rail-to-Rail Input and Output Op Amps

LT1620/LT1621 Rail-to-Rail Current Sense Amplifiers

Over-The-Top is a trademark of Linear Technology Corporation.

COMMENTS

120dB CMRR, 3V to 18V Operation

50µA Amplifier, 2.7V to 40V Operation,

Over-The-TopTM Inputs

Accurate Output Current Programming, Battery

Charging to 32V

16 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com

1787fc

LT 0606 REV C • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1999

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