AD1672

ASD0010965 Rev. O | Page 2 of 7

PIN DESCRIPTION

Symbol

Pin

No.

Type

Name and Function

DRCOM

1

P

Digital Output Drive Ground

BIT 12

2

DO

Data Bit (LSB).

Bit 2-11

3-12

DO

Data Bits

BIT 1

13

DO

Data Bit (MSB).

14

P

+5V Digital Output Drive Supply (3.0V to 5.25V)

OTR

15

DO

Out of Range is Active High on the leading edge of

Code 0 or the trailing edge of Code 4096. See

Output Data Format Table V.

CLOCK

16

DI

Sample Clock

17

P

+5V Digital Supply

DCOM

18

P

Digital Ground

REFCOM

19,

24

P

Analog Ground

REFOUT

20

AO

2.5V Reference Output (Decouple with 1

F ceramic

capacitor to REFCOM).

AIN1

21

AI

Analog Input

AIN2

22

AI

Analog Input

REFIN

23

AI

Reference Input

NCOMP2

25

AO

Noise Compensation (Decouple with 1

F ceramic

capacitor to ACOM).

NCOMP1

26

AO

Noise Compensation (Decouple with 1

F ceramic

capacitor to ACOM).

ACOM

27

P

Analog Ground

28

P

+5V Analog Supply

TYPE: AI = Analog Input; DI = Digital Input; P = Power

AO = Analog Output; DO = Digital Output