Article View: sci.electronics
Article #14543Re: calculating bandwidth for op amps
From: Tony stewart
Date: Sun, 15 Nov 1992 00:21
Date: Sun, 15 Nov 1992 00:21
18 lines
1039 bytes
1039 bytes
ah335@cleveland.Freenet.Edu (Richard Banks) writes: > I need some general formulas for calculating the overall signal > bandwidth of chained op amps. > > The only formula I have now is: > > 'f_A = f_t/(1 + R_2/R_1) > > Does anyone have anything simpler than this? > Thanks. yes... BW = BW(open loop)/Gain(closed loop) since each opamp will give a 1st order response, and each stage is independent, overall response i easy to figure out. ie if all the same then the BW is same but higher order rolloff. dino@inqmind.bison.mb.ca The Inquiring Mind BBS, Winnipeg, Manitoba 204 488-1607
Technical Details
Message-ID:
<e789TB1w165w@inqmind.bison.mb.ca>Path:
arc1-ca.pugleaf.net!sparky!uunet!newsflash.concordia.ca!mizar.cc.umanitoba.ca!ccu.umanitoba.ca!bison!sys6626!inqmind!dinoReferences:
<1e0p15INNf3n@usenet.INS.CWRU.Edu>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!newsflash.concordia.ca!mizar.cc.umanitoba.ca!ccu.umanitoba.ca!bison!sys6626!inqmind!dino From: dino@inqmind.bison.mb.ca (Tony stewart) Newsgroups: sci.electronics Subject: Re: calculating bandwidth for op amps Message-ID: <e789TB1w165w@inqmind.bison.mb.ca> Date: Sat, 14 Nov 92 18:21:25 CST References: <1e0p15INNf3n@usenet.INS.CWRU.Edu> Organization: The Inquiring Mind BBS 1 204 488-1607 Lines: 18