Internal
+10V Reference
VREF OUT
5
10kΩ
+10V
R1
340Ω
R2
500Ω
170Ω
250Ω
10kΩ
Gain Adjust
–10V
6
4
Suggested Op Amps
OPA177GP, GS or
OPA604AP, AU
Bipolar Offset Adjust
5kΩ
15kΩ
9.75kΩ
10kΩ
R3
R4
20kΩ
10kΩ
RFB VREF A
0 to 10V
Suggested Op Amps
OPA177GP, GS: Single or
OPA2604AP, AU: Dual
3
IDAC
0-2mA
±10V VOUT
0 to +10V
DAC712
RFB VREF B
For no external adjustments, pins 4 and 6 are not connected.
External resistors R1 - R4 tolerance: ±1%. Range of adjustment at
least ±0.3% FSR.
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).
FIGURE 7. Gain and Offset Adjustment Using D/A Converters.
®
12
DAC712
BB [ BURR-BROWN CORPORATION ]
