Hello guys..
The text says:
"A resistor is the simplest I-to-V converter. However, it has the disadvantage of presenting a nonzero impedance to the source of input current; this can be fatal if the device providing the input current has very little compliance ."
Does the above phrase means that the device which has very little compliance has low output resistance which means that if it is cascaded to an output circuit which contain a resistor as a simplest I-V converter ...the resistor will going to load the device due to its little compliance..since resistor is showing a little resistance enough to load the circuit...
second ..
As the inverting input is maintained at virtual ground..then how can a current can flow in the photo diode branch..how does the circuit the acts as a I-V convertor..
please help...
The text says:
"A resistor is the simplest I-to-V converter. However, it has the disadvantage of presenting a nonzero impedance to the source of input current; this can be fatal if the device providing the input current has very little compliance ."
Does the above phrase means that the device which has very little compliance has low output resistance which means that if it is cascaded to an output circuit which contain a resistor as a simplest I-V converter ...the resistor will going to load the device due to its little compliance..since resistor is showing a little resistance enough to load the circuit...
second ..
As the inverting input is maintained at virtual ground..then how can a current can flow in the photo diode branch..how does the circuit the acts as a I-V convertor..
please help...
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