AD1672 datasheet(5/20 Pages) AD

5 / 20 page

AD1672

REV. 0

–5–

PIN DESCRIPTION

Symbol

No.

Type

Name and Function

DRCOM

Digital Output Driver Ground.

BIT 12

Data Bit (LSB).

BIT 2–11

3–12

Data Bits.

BIT 1

Data Bit (MSB).

DRVDD

+5 V Digital Output Driver Sup-

ply.

OTR

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

Sample Clock.

VDD

+5 V Digital Supply.

DCOM

Digital Ground.

REFCOM

19, 24

Analog Ground.

REFOUT

2.5 V Reference Output

(Decouple with 1

µF ceramic

capacitor to REFCOM).

AIN1

Analog Input.

AIN2

Analog Input.

REFIN

Reference Input.

NCOMP2

Noise Compensation (Decouple

with 1

µF ceramic capacitor to

ACOM).

NCOMP1

Noise Compensation (Decouple

with 1

µF ceramic capacitor to

ACOM).

ACOM

Analog Ground.

VCC

+5 V Analog Supply.

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

AO = Analog Output; DO = Digital Output.

ORDERING GUIDE

Model

Temperature Range

Package

AD1672AP

–40

°C to +85°C

P-28A

PIN CONFIGURATION

28 27 26

12 13

14 15 16 17

TOP VIEW

(Not to Scale)

PIN 1

IDENTIFIER

BIT 9

BIT 8

BIT 7

BIT 6

BIT 5

NCOMP2

REFCOM

REFIN

AIN2

AIN1

AD1672

BIT 4

BIT 3

REFOUT

REFCOM

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