0_100000_V_IN_100_μV_STEPS

Published:2009/7/15 21:01:00 Author:Jessie | From:SeekIC

Constant cur-rent from AD506 opamp drives zener, with 5.16K resistor providing optimum current through zener for temperature-drift cancellation. Chopper-stabilized opamp scales output of zener over full range, Offset-voltage pot serves for zero calibration. Reference voltage is stable to about 11 PPM per year.4. Williams, Don't Bypass the Voltage Reference That Best Suits Your Needs, EDN Magazine, 0ct. 5, 1977, p 53-57.



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