HI,
I'm using OPA128 OPAMP for current source circuit with REF200, when i connect +15v supply to pin no 7 (+ Vcc) of OPA128 , i'm getting 13V at pin no 4 , i want to know the reason for this and i'm not getting correct output also, I want to know whether the OPA128 is in working condition or not . If OPA128 is not working properly pls suggest me an equivalent component as OPA128 is costly..... Expecting a speedy and positive reply.
Best regards .