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

Can anyone explain this circuit of bitscope?

Status
Not open for further replies.
W

wf_car

Newbie level 4
Joined
Sep 18, 2008
Messages
7
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,319
Dear all,
I am building an oscilloscope, and I have got much help from you.
Here is the circuit of the bitscope in the attachment image.
:arrow:Now I catch on the DC/AC change and the Input buffer but other circuit is confused me.
Thanks.[/img]
 

It seems a source-follower amplifier (high Z input ) with a compensation R25, C31, Q6 is a current source, and ... Q3 may be for reduce DC temperature drift.

The OP is a 300 MHz bandwith, I dont know de details about circui, but I think that are too many components, and thats not better way to have an accurate oscilloscope amplifier, with the same components you can build more precise amplifier
 

    W

    wf_car

    Points: 2
    Helpful Answer Positive Rating
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top