Data Sheet

AD7682/AD7689

Rev. H | Page 13 of 35

Pin No.

AD7682

WLCSP

Mnemonic

AD7689

WLCSP

Mnemonic

Description

C5

DIN

DIN

DI

Data Input. Use this input for writing to the 14-bit configuration register. The configura-

tion register can be written to during and after conversion.

C3

SCK

SCK

DI

Serial Data Clock Input. This input is used to clock out the data on SDO and clock in data

on DIN in an MSB first fashion.

B2

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.

A1

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).

A3

IN0

IN0

AI

Analog Input Channel 0.

B4

NC

IN1

AI

No connection (AD7682).

Analog Input Channel 1 (AD7689).

A5

IN1

IN2

AI

Analog Input Channel 1 (AD7682).

Analog Input Channel 2 (AD7689).

E7

NC

IN4

AI

No Connection (AD7682).

Analog Input Channel 4 (AD7689).

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.