4

______________________________________________________________________

SDA SCL

A1

A0

GND

FS0

FS1

OUT1

OUT0

CURRENT

DAC0

F8h

F9h

SOURCE OR

SINK MODE

FS2

OUT2

FS3

OUT3

CURRENT

DAC3

31-POSITIONS

EACH FOR SINK

AND SOURCE

MODE

FAh

FBh

DS4402/DS4404

DS4404

CURRENT

DAC1

CURRENT

DAC2

SERIAL INTERFACE

Figure 1. Functional Diagram

Pin Description

PIN

DS4404

DS4402

NAME

FUNCTION

1

1

SDA

2

2

SCL

3

3

GND

Ground

4

—

FS3

5

—

FS2

6

6

FS1

7

7

FS0

Full-Scale Calibration Input. A resistor to ground on these pins determines the full-scale

current for each output. FS0 controls OUT0, FS1 controls OUT1, etc. (DS4402 has only

two inputs: FS0 and FS1.)

8

8

OUT0

10

10

OUT1

12

—

OUT2

14

—

OUT3

resistance connected to FSx. (DS4402 has only two outputs: OUT0 and OUT1.)

9, 11

9, 11

A0, A1

See the Detailed Description section for the nine available device addresses.

13

13

Power Supply

—

4, 5, 12, 14

N.C.

No Connection

—

—

EP

Exposed Pad. Leave unconnected or connect to GND.