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Subject: Filter Bypass

Date: 10/04/02 at 12:48 PM
Posted by: Arun Sharma
E-mail: analog_arun@yahoo.com
Message Posted:

I am designing a filter . But i need to bypass it for some mode of operation in the chip.
I dont have a MOS device which can work on -14 to +14V. Mos in my technology can work onlu up to 9V.
If i use a another bypass device like buffer in parralel which can turn on and amplifier of the filter can be turned off, even in that case feedback components of filter are in forward path and can give zero.
so i couldn't think of another bypass strategy.I have constrants of power and noise so i cant afford to use extra amplifier in the forward pathh.
does any one out here can provide me some idea.

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