Testing the Bandwidth of Photodiode Transimpedance Amplifier

Status
Not open for further replies.
E

emran_shd

Newbie level 5
Joined
Apr 1, 2009
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,351
Hi!
I am working on the design of Photodiode Transimpedance Amplifier. Can anyone tell me how can i test the bandwidth of Photodiode Transimpedance Amplifier without having any spectrum or network analyzer?
 

You can try inserting unit step function (small Vptp, lets say 100mV) to the positive input and measure rise time at the output. BW~0.33/tr . This will give you fear approximation. (Assuming you have an opamp configuration with trans-impedance resistor between out and negative input)
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…