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Amplifier for picoamper current source

Question asked by wivern on Aug 29, 2013
Latest reply on Aug 30, 2013 by krisf

I play with High Precision,Low Cost Current Sources Using the AD8276 Difference Amplifier and the AD8603 Op Amp 

http://www.analog.com/en/circuits-from-the-lab/cn0099/vc.html

I want to try, source remake to picoamper (100pA) current source

Can recommend a suitable amplifier instead AD8603, appropriate transistor about JFET. I would welcome greater power supply for amplifier, but it will probably be a problem

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