Current DAC

4

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Pin Description

NAME

PIN

FUNCTION

SDA

1

SCL

2

FS1

3

FS0

5

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

for each output. FS0 controls OUT0; FS1 controls OUT1.

GND

4

Ground

OUT0

6

OUT1

7

Current Outputs. Sinks or sources the current determined by the register settings and the

resistance connected to FS0 and FS1.

8

Power Supply

Typical Operating Characteristics

otherwise noted.)

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.0

4.5

4.0

3.5

3.0

25

50

75

100

125

150

0

2.5

5.5

DOES NOT INCLUDE CURRENT DRAWN BY

RESISTORS CONNECTED TO FS0 OR FS1.

SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

60

80

40

20

0

-20

25

50

75

100

125

150

0

-40

DOES NOT INCLUDE CURRENT DRAWN BY

RESISTORS CONNECTED TO FS0 OR FS1.

VOLTCO (SOURCE)

4

3

2

1

-225

-200

-175

-150

-250

05

40k

Ω LOAD ON FS0 AND FS1.

VOLTCO (SINK)

3.5

3.0

2.5

2.0

1.5

1.0

0.5

175

200

225

250

150

0

4.0

40k

Ω LOAD ON FS0 AND FS1.

TEMPERATURE COEFFICIENT

vs. SETTING (SOURCE)

SETTING (DEC)

100

125

75

50

25

0

50

100

150

200

250

300

-50

0

RANGE FOR THE 50

μA TO 200μA CURRENT

SOURCE RANGE.

+25

°C TO -40°C

+25

°C TO +85°C

TEMPERATURE COEFFICIENT

vs. SETTING (SINK)

SETTING (DEC)

100

125

75

50

25

-150

-50

50

150

250

350

450

550

650

-250

0

RANGE FOR THE 50

μA TO 200μA CURRENT

SINK RANGE.

+25

°C TO -40°C

+25

°C TO +85°C