intro326 - ECEN 326 Electronic Circuits Introduction Dr....

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Unformatted text preview: ECEN 326 Electronic Circuits Introduction Dr. Aydn Ilker Kar slayan Texas A&M University Department of Electrical and Computer Engineering NPN & NMOS NPN & NMOS DC E I I C I B E C B V CE V CE,sat ACTIVE V BE = 0.7 V I C = I B I E = I C + I B G S D B I D I G V DS V ov ACTIVE V ov = V GS- V tn I G = 0 I D = k n 2 W L V 2 ov ECEN 326 Electronic Circuits - Aydn I. Kar slayan - Introduction 1 PNP & PMOS PNP & PMOS DC I E I C I B C E B V EC V EC,sat ACTIVE V EB = 0.7 V I C = I B I E = I C + I B G D S B I D I G V SD V ov ACTIVE V ov = V SG- | V tp | I G = 0 I D = k p 2 W L V 2 ov ECEN 326 Electronic Circuits - Aydn I. Kar slayan - Introduction 2 NPN & NMOS NPN & NMOS Small-signal T model, r o = e i e i e E C r r o B r e = V T I E = g m 1 g m g m = I C V T g m 1 i s i s G S r o D g m = k n W L V ov = v u u u u t 2k n W L I D ECEN 326 Electronic Circuits - Aydn I. Kar slayan - Introduction 3 PNP & PMOS PNP & PMOS Small-signal T model, r o = e E B C i r e i e r o r e = V T I E = g m 1 g m g m = I C V T G S g m 1 i s i s r o D g m = k p W L V ov = v u u u u t 2k p W L I D ECEN 326 Electronic Circuits - Aydn I. Kar slayan - Introduction 4 BJT Node Resistances BJT Node Resistances AC, r o = R C R E R base R base = ( + 1)(r e + R E ) R E R B R collector R collector = R B R C R emitter R emitter = r e + R B + 1 ECEN 326 Electronic Circuits - Aydn I. Kar slayan - Introduction 5 BJT Amplifiers BJT Amplifiers AC, r o = v o R C v i v o R E v i R C R B...
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This note was uploaded on 02/08/2009 for the course ECEN 326 taught by Professor Karsilayan during the Spring '09 term at Texas A&M.

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intro326 - ECEN 326 Electronic Circuits Introduction Dr....

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