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65_V_REFERENCE

2015-03-24 06:11  
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65_V_REFERENCE
Reference amplifier uses mirror characteristic of noninverting input of current-mode opamp to determine zener current. Resulting voltage drop across zener provides, through R2, current reference for other or opamps or compensated voltage reference.-R. W Fergus, Use Current-Mode Op Amps in Reference Circuits, EDN Magazine, June 20, 1974, p 80 and 83.