i-to-v converter

Open – loop gain A of the op-amp is very large. Input impedance of the op amp is very high. Sensitivity of the I – V converter: • The output voltage V0 = -RFIin. • Hence the gain of this converter is equal to -RF. The magnitude of the gain (i.e) is also called as sensitivity of I to V converter. • The amount of change in output volt ∆V0 for a given change in the input current ∆Iin is decide by the sensitivity of I-V converter. • By keeping RF variable, it is possible to vary the sensitivity as per the requirements. Applications of I – V converter: • One of the most common uses of the current to voltage converter is o Digital to analog Converter (DAC) o Sensing current through Photodetector such as photocell, photodiodes and photovoltaic cells. o Photoconductive devices produce a current that is proportional to an incident energy or light (i.e) It can be used to detect the light.