DAC08

Data Sheet

Rev. D | Page 12 of 21

APPROX

5k

Ω

≈1V

39k

Ω

10k

Ω

POT

LOW T.C.

4.5k

Ω

10V

14

15

Figure 27. Recommended Full-Scale Adjustment Circuit

R15

NOTE

BIAS CURRENT CANCELLATION.

14

15

4

2

Figure 28. Basic Negative Reference Operation

*OR ADR01

4

2

6

5

10k

Ω

+15V –15V

–15V

+15V

5.0k

Ω

15V

MSB

B1 B2 B3 B4 B5 B6 B7

LSB

B8

5.000k

Ω

5.0k

Ω

POS. FULL RANGE

ZERO SCALE

NEG. FULL SCALE +1LSB

NEG. FULL SCALE

B1

1

1

0

0

B2

1

0

0

0

B3

1

0

0

0

B4

1

0

0

0

B5

1

0

0

0

B6

1

0

0

0

B7

1

0

0

0

B8

1

0

1

0

+4.960

0.000

–4.960

–5.000

10V

REF01*

–V

4

2

V+

AD8671

Figure 29. Offset Binary Operation

255

256

4

2

AD8671

FOR COMPLEMENTARY OUTPUT (OPERATION AS A NEGATIVE LOGIC DAC).

TO GROUND.

Figure 30. Positive Low Impedance Output Operation

255

256

4

2

AD8671

FOR COMPLEMENTARY OUTPUT (OPERATION AS A NEGATIVE LOGIC DAC).

TO GROUND.

Figure 31. Negative Low Impedance Output Operation