Data Sheet

AD7682/AD7689

Rev. H | Page 11 of 35

Pin No.

AD7682

LFCSP

Mnemonic

AD7689

LFCSP

Mnemonic

Description

14

SDO

SDO

DO

Serial Data Output. The conversion result is output on this pin, synchronized to SCK. In

unipolar modes, conversion results are straight binary; in bipolar modes, conversion

results are twos complement.

15

VIO

VIO

P

Input/Output Interface Digital Power. Nominally at the same supply as the host interface

(1.8 V, 2.5 V, 3 V, or 5 V).

16

IN0

IN0

AI

Analog Input Channel 0.

17

NC

IN1

AI

No Connection (AD7682).

Analog Input Channel 1 (AD7689).

18

IN1

IN2

AI

Analog Input Channel 1 (AD7682).

Analog Input Channel 2 (AD7689).

19

NC

IN3

AI

No Connection (AD7682).

Analog Input Channel 3 (AD7689).

21

EPAD

EPAD

NC

Exposed Pad. The exposed pad is not connected internally. For increased reliability of the

solder joints, it is recommended that the pad be soldered to the system ground plane.

1

AI means analog input, AI/O means analog input/output, DI means digital input, DO means digital output, P means power, and NC means no internal connection.