Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

transimpedence amplifier with ac input

Status
Not open for further replies.

chaitanya2k6er

Junior Member level 3
Joined
Dec 10, 2010
Messages
26
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,476
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
 

Attachments

Last edited:

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top