hi,
i want to design a current to voltage converter circuit which should measure 1-25uA current using op-amps.The output of the amplifier will be given to an ADC to get equivalent digi value.
can anyone help me to design the circuit.:|
Please help!!
For this current range you can consider amplifiers which are used to convert very small currents (-50pA to -50µA) from photo-detectors . In the following example the author employed an opamp from MAXIM, the MAX420, but there are other precision opamps, AD797, MAX427, LT1028, OP177 to name just a few, which can be used in this application .. **broken link removed**