chaitanya2k6er
Junior Member level 3
hi every one..
i got stuck up at the transimpedence amplifier. I need to convert the current from the ac source of 442V to the voltage. So i have used the lmp6081 for this application, with a feed back resistance of 1MΩ. So what i have observed is, the output of amplifier with noise and with some offset voltage. Where can be the filter used to reduce the noise greater than 50hz(i.e line frequency 50hz) and how can i reduce the offset voltage output. Please find the attached circuit diagram. Ground reference in the circuit is opamp non inverting pin.
Chaitanya
i got stuck up at the transimpedence amplifier. I need to convert the current from the ac source of 442V to the voltage. So i have used the lmp6081 for this application, with a feed back resistance of 1MΩ. So what i have observed is, the output of amplifier with noise and with some offset voltage. Where can be the filter used to reduce the noise greater than 50hz(i.e line frequency 50hz) and how can i reduce the offset voltage output. Please find the attached circuit diagram. Ground reference in the circuit is opamp non inverting pin.
Chaitanya
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