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Design of third-order OTA-C type filter (Read 3258 times)

Jlim New Member Offline Posts: 6	Design of third-order OTA-C type filter Feb 18^th, 2013, 5:32pm Hi, i am going to design third-order OTA-C type filter.i doubt about whether the OTA is same with Gm or not? Then the picture i attached show the 3rd-order Gm-C filter.Can i know that how the Gm block in CMOS transistor form? Hope for the help...thanks
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buddypoor Community Fellow Offline Posts: 529 Bremen, Germany	Re: Design of third-order OTA-C type filter Reply #1 - Feb 19^th, 2013, 12:05am Jlim, I am not quite sure what your question really is - however, perhaps it helps that each (ideal) OTA can be considered to be a voltage-controlled current source with a transfer ratio ("gain"), which is described as transconductance gm (in A/V).
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Jlim New Member Offline Posts: 6	Re: Design of third-order OTA-C type filter Reply #2 - Feb 19^th, 2013, 12:18am i dont know how to build "gm" block that show in attachment in CMOS transistor form...Can anyone to help me?
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buddypoor Community Fellow Offline Posts: 529 Bremen, Germany	Re: Design of third-order OTA-C type filter Reply #3 - Feb 19^th, 2013, 2:43am Jlim wrote on Feb 19^th, 2013, 12:18am: i dont know how to build "gm" block that show in attachment in CMOS transistor form...Can anyone to help me? What means "build" ? In hardware or as a transistor-based simulation model?
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Jlim New Member Offline Posts: 6	Re: Design of third-order OTA-C type filter Reply #4 - Feb 19^th, 2013, 9:00am thanks to reply...sorry make u confusing... i want to design Gm as a transistor-based simulation model by using cadence...do u hv any suggestion circuit for me???
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