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Subject: 20ma current loop with opamps

Date: 01/18/02 at 7:36 AM
Posted by: roy
E-mail: leff@fidalgo.net
Message Posted:

Looking for single-rail 20ma current loop using opamps (and probably an external NPN or PNP driver). Can't use AD694 because the minimum voltage is 12.5 Vdc. The existing 5-vdc power supply is a real pain in the touche. Ideas? Application Notes? Flash of genius? C4 explosive?

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