REV. C

OP77

–13–

REF-01

OP77

15V

10 F

+

2

6

4

0.1 F

REF-01

REF-01

100

100

100

4

4

2

2

6

6

Figure 15. Low Noise Precision Reference

OP77

1k

AD820

15V

2

6

4

0.1 F

1N4148

2N930

RESET

–15V

–15V

15V

2

4

6

1k

1k

0.1 F

0.1 F

0.1 F

3

3

7

7

Figure 16. Precision Positive Peak Detector

with very high CMRR to provide precision buffering of the

averaged REF01 voltage outputs.

dielectric absorption and leakage. The droop rate is determined

*Teflon is a registered trademark of the Dupont Company