Transcription of Transimpedance Considerations for High-Speed …
{{id}} {{{paragraph}}}
Example: barber
Transimpedance Considerations for High-Speed …
ApplicationReportSBOA122 , gain , ,providesa setofdetaileddesignequations,explainstho seequations, (10pFSourceCapacitance).. November2009 TransimpedanceConsiderationsforHigh-Spee dAmplifiersSubmitDocumentationFeedbackCo pyright 2009,TexasInstrumentsIncorporated-VBlA(s )VOCFCCMCDCDIFFRFIDV-C = C + C+ CSDCMDIFFV = V A(s)O--A(s) =As +wwOLAA VIOD=-ZF1 +1 +ZZFGA(s) transimpedancecircuitis toconvertaninputcurrentfroma currentsource(typicallyaphotodiode) tousea ,theachievablegainusingthismethodis ; ; closed-loopapproach,usinganoperationalam plifier,is typicalcircuitwithallnecessarycomponents forthisanalysisis shownin Figure1. Inthiscircuit,thegeneratoris a photodiode,whoseroleis toconvertthephotonsintoa thenamplifiedbythefeedbackresistorRF.
Z = R ||F F 1 s C· F 1 R CF F· 1 C F s + Z =G 1 s C· S 1 + Z Z F G w 2 p A Z 1 P 1 F 0 F C Gain Bandwidth Product (GBP) Log Frequency (Hz) Noise Gain Log Gain (dB) 0dB 20log (A )OL Op Amp Open-Loop Gain C C S F
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: