AD7397AN View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

AD7397AN

3 V, Parallel Input Dual 12-Bit/10-Bit DACs

Analog Devices 

AD7396/AD7397

Pin No.

1

2

3

4

5

6

7–18

7, 8

9–18

19

20

21

22

23

24

Name

VOUTA

AGND

DGND

LDA

SHDN

RS

D0–D11

NC

D0–D9

CS

A/B

LDB

VDD

VREF

VOUTB

PIN FUNCTION DESCRIPTIONS

DAC A Voltage Output.

Analog Ground.

Digital Ground.

Load DAC A Register Strobe. Transfers input register data to the DAC A register. Active

low inputs, Level sensitive latch. May be connected together with LDB to double-buffer load

both DAC registers simultaneously.

Power Shutdown Active Low Input. DAC register contents are saved as long as power stays

on the VDD pin.

Resets Input and DAC Register to Zero Condition. Asynchronous active low input.

Twelve Parallel Input Data Bits. D11 = MSB Pin 18, D0 = LSB Pin 7, AD7396.

No Connect Pins 7 and 8 On the AD7397 Only.

Ten Parallel Input Data Bits. D9 = MSB Pin 18, D0 = LSB Pin 9, AD7397 Only.

Chip Select Latch Enable, Active Low.

DAC Input Register Address Select DACA = 1 or DACB = 0.

Load DAC B Register Strobe. Transfers input register data to the DAC B register. Active low

inputs, Level sensitive latch. May be connected together with LDA to double-buffer load

both DAC registers simultaneously.

Positive Power Supply Input. Specified range of operation +2.7 V to +5.5 V.

DAC Reference Input Pin. Establishes DAC full-scale voltage.

DAC B Voltage Output.

PIN CONFIGURATIONS

VOUTA 1

AGND 2

DGND 3

LDA 4

24 VOUTB

23 VREF

22 VDD

21 LDB

SHDN

RS

D0

5 AD7396 20 A/B

6 TOP VIEW 19 CS

7 (Not to Scale) 18 D11

D1 8

17 D10

D2 9

16 D9

D3 10

15 D8

D4 11

14 D7

D5 12

13 D6

VOUTA 1

AGND 2

DGND 3

LDA 4

24 VOUTB

23 VREF

22 VDD

21 LDB

SHDN 5 AD7397 20 A/B

RS 6 TOP VIEW 19 CS

NC 7 (Not to Scale) 18 D9

NC 8

17 D8

D0 9

16 D7

D1 10

15 D6

D2 11

14 D5

D3 12

13 D4

NC = NO CONNECT

–6–

REV. 0

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