Other Parts Discussed in Thread: TLE2141
Dear sir
when i am replacing intersil ca3140 with tle2141 then there is issue to null offset. tle2141IP shows the 70mv output with zero 0 mv input across photodiode. we try to null offset with 5k,1k and 10k, variable resistance putting b/w 1 and 5 pin of op-amp. i am using sigle supply +5v. offset is varying 70mv to 150 mv but i am unable to make it zero.