Ok thanks for that. I'll check out the AD711.
Dear Kenneth43 thanks.
I used the output amplifier with gain=4.7. The output of AD711 is as per expectation, i.e. AD711 output = (differential voltage at pin 5 and 4 of AD834) X 4.7
The circuit seems to be so simple, but I do not know where is the mistake…
What happens if I leave the null pins floating on an Analog Devices AD711?
Can you attach your schematic diagram?I can't seem to find the specific LTX tester you're using, if possible can you give a link or attach documents regarding the LTX tester VI16 module.It'll be a great help in analyzing this issue.…
The idea is to make a desired current run through the RZ variable load. The voltage drop across R5 has to be the same as Vin, so the current is Vin/R5. To achieve that, I inverted it with U8 and added to Vin at U1, so I get a zero voltage at the inverting…
it is allowed to view simplified schematic of op amps AD711 and AD820
what is inside in outline