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LTC1657L

Parallel 16-Bit Rail-to-Rail Micropower DAC

Linear Technology 

LTC1657L

TYPICAL APPLICATION

This circuit shows how to measure negative offset. Since

LTC1657L operates on a single supply, if its offset is

negative, the output for code 0 limits at 0V. To measure

this negative offset, a negative supply is needed. Connect

resister R1 as shown in the figure, the output voltage is the

offset when code 0 is loaded in.

3V

22

23

24

0.1µF

µP

5:19

2

3

1

28

27

REFHI REFOUT VCC

DATA 10:15

CSLSB

CSMSB

WR

LTC1657L

LDAC

CLR

VOUT 25

R1

100k

X1/X2 REFLO GND

–3V

26

21

20

1657 TA03

9

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