9

LTC1446/LTC1446L

LTC1446

50k

5V

15V

–15V

CLK

0.1

µF

50k

µP

CS/LD

GND

8.190

A

4.094

0

–4.096

–8.190

1446/46L F02

100k

100k

–

+

LT1077

B

C

A Wide Swing, Bipolar Output DAC with Digitally Controlled Offset

This circuit shows how to use an LTC1446 and an

LT

which can be set by loading the appropriate digital code

for DAC A, sets the offset. As this value changes, the

transfer curve for the output moves up and down as

illustrated in the graph below.