PRECISION_CURRENT_SINK

Published:2009/7/13 4:57:00 Author:May | From:SeekIC

R1 serves as cur-rent-sensing resistor providing negative feed-back for opamp to enhance true current-sink nature of circuit. Both JFET and bipolar have inherently high output impedance as required for high-accuracy current sink.- FET Databook, National Semiconductor, Santa Clara, CA, 1977, p 6-26-6-36.



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