Voltage/current conversion circuit composed of LM301

Published:2011/7/5 8:39:00 Author:Lucas | Keyword: Voltage/current conversion | From:SeekIC

It is the conversion circuit, which can transform ±10V voltage into ±lmA, and the input voltage is changed into current by the A1 and VTl, VT2, and it is used to change the current direction. The input end is added 2mA bias current, when the input voltage is OV, there is 2mA current flowing; the output termination is added 2mA constant current source circuit to offset the input bias current. When the output end is short-circuit, adjusting the potentiometer RP1 make the output current in OA;when the input voltage is + lOV, adjusting potentiometer RP1 make the output current in lmA.



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