Need help to solve analog circuit overshoot problem.

Status
Not open for further replies.
E

EDA_hg81

Advanced Member level 2
Joined
Nov 25, 2005
Messages
507
Helped
2
Reputation
4
Reaction score
2
Trophy points
1,298
Activity points
4,808
Ideal is the following:

1. Use current source ( 0.1mA ) to charge a capacitor.
2. After disconnecting the current source, measuring the flowing current from that capacitor.

I want to use an analog buffer to deal with the potential overshoot, but the requirement of this transmission line is that the leaking current produced by the analog buffer can not be higher than 0.001mA.


Can I realize my idea?

Thank you.
 

EDA_hg81,
Almost any run-of-the-mill Op Amp can do this, as long as it's used in the non-inverting configuration. The leakage current will be, at most, the Op Amp bias current plus the Op Amp p0ffset current.
Regards,
Kral
 

    E

    EDA_hg81

    Points: 2
    Helpful Answer Positive Rating
Do you know how to realized bidriectional analog buffer?

No MOS switch can be included.

thank you
 

You can use a relay

OR just a fet by itself, like a jfet which is symetrical.

movingbait. Ü
 

    E

    EDA_hg81

    Points: 2
    Helpful Answer Positive Rating
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…