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PIN CONFIGURATION

1

2

3

4

8

7

6

5

+V

CC

DCLOCK

D

OUT

CS/SHDN

V

REF

+In

-In

GND

ADS7822

ADS7822

SBAS062C – JANUARY 1996 – REVISED AUGUST 2007

D, DGK, OR P PACKAGE

SO, MSOP, or DIP

(TOP VIEW)

PIN ASSIGNMENTS

PIN

DESCRIPTION

NAME

NO.

VREF

1

Reference input

+In

2

Noninverting input

–In

3

Inverting input. Connect to ground or to remote ground sense point.

GND

4

Ground

CS/SHDN

5

Chip select when low; Shutdown mode when high.

The serial output data word is comprised of 12 bits of data. In operation, the data are valid on the falling edge of DCLOCK. The

DOUT

6

second clock pulse after the falling edge of CS enables the serial output. After one null bit, the data are valid for the next edges.

DCLOCK

7

Data clock synchronizes the serial data transfer and determines conversion speed.

+VCC

8

Power supply

Copyright © 1996–2007, Texas Instruments Incorporated

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