Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics 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

Current sensing amplifier

Status
Not open for further replies.
S

sivamit

Full Member level 4
Joined
Dec 1, 2005
Messages
201
Helped
20
Reputation
40
Reaction score
14
Trophy points
1,298
Activity points
2,651
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!!
 

Check attachment there is some circuit for to read nA to mA.
By igo 64
 

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**

Regards,
IanP
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top