LTC6912

24

6912fa

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

©LINEAR TECHNOLOGY CORPORATION 2004

LT/LT 1005 REV A • PRINTED IN USA

RELATED PARTS

PART NUMBER

DESCRIPTION

COMMENTS

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LTC1564

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TYPICAL APPLICATIO

INA

AGND

INB

1

µF

0.1

µF

CHANNEL A

INPUT

CHANNEL B

INPUT

(TO ADC)

OUT A

OUT B

LTC6912-X

SHDN

CS/LD

DATA

CLK

SHDN

CS/LD

5

6

7

8

10

9

DGND

2

12

14

3

4

15

13

CHB

CHA

3-WIRE

SPI

INTERFACE

6912 TA02

MUX OPERATION: IF THE LOWER NIBBLE (Q3, Q2, Q1, Q0) IS (1, 0, 0, 0) THEN OUTA IS IN

TRI-STATE AND THE UPPER NIBBLE (Q7, Q6, Q5, Q4) CONTROLS THE ACTIVE CHANNEL B.

IF THE UPPER NIBBLE IS (1, 0, 0, 0) THEN OUTB IS IN TRI-STATE

AND THE LOWER NIBBLE CONTROLS ACTIVE CHANNEL A.

A 2:1 PGA MUX