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OPAMP_AS_MILLIVOLT_REFERENCE_1

2014-11-06 18:19  
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OPAMP_AS_MILLIVOLT_REFERENCE_1
High-performance bipolar-input Precision Monolithics OP-05CJ instrumentation opamp is connected as unity-gain buffer. Output is adjusted to desired reference voltage with pot connected to offset nulling terminals. Reference range is -3.5 mV to +3.5 mV, and long-term drift of zener less source is less than 3.5 μV per month.-D. Soderquist, Simple Precision Millivolt Reference Uses No Zeners, Precision Monolithics, Santa Clara, CA, 1975, AN-10.