11

®

DAC714

FIGURE 7. Gain and Offset Adjustment in the Bipolar Mode Using D/A Converters (–10V to +10V output range).

10k

Ω

9

13

10

14

11

±10V V

OUT

DAC714

9.75k

Ω

IDAC

0-2mA

15k

Ω

R

3

11.8k

Ω

0 to +10V

R

4

24.3k

Ω

180

Ω

250

Ω

Internal

+10V Reference

V

REF OUT

Gain Adjust

Offset Adjust

R

1

200

Ω

R

2

1.3k

Ω

R

12

Suggested Op Amps

OPA177GP, GS or

OPA604AP, AU

R

0 to +10V

Suggested Op Amps

OPA177GP, GS: Single or

OPA2604AP, AU: Dual

5k

Ω

10k

Ω

+10V

10k

Ω

–10V

Suggested D/As

CMOS

DAC7800: Dual: Serial Input, 12-bit Resolution

DAC7801: Dual: 8-bit Port Input, 12-bit Resolution

DAC7802: Dual: 12-bit Port Input, 12-bit Resolution

DAC7528: Dual: 8-bit Port Input, 8-bit Resolution

DAC7545: Dual: 12-bit Port Input, 12-bit Resolution

DAC8043: Single: Serial Input, 12-bit Resolution

BIPOLAR (complete)

DAC813 (Use 11-bit resolution for 0V to +10V output. No op amps required).

10k

Ω

R

FB2

Bipolar Offset

For no external adjustments, pins 13 and 14 are not

connected. External resistors R

Range of adjustment at least ±0.3% FSR.