Source degeneration are small. Prove that in the circuit of Fig. 14.41, AlD ID can improve...
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Source degeneration are small. Prove that in the circuit of Fig. 14.41, AlD ID can improve the matching between current sources if resistor mismatches 1 1+ gm Rs Vb • A(μn Cox), A(W/L) Pn Cox (W/L) + 8mARS where ARS denotes the mismatch between Rs1 and Rs2. Note that for an appreciable reduction of Al/ID, Rs must be greater than 1/gm. Figure 14.41 M1 ID1 M2 D2 卡 H. Rs1 2AVTH VGS - VTH R$2 (14.100) Source degeneration are small. Prove that in the circuit of Fig. 14.41, AlD ID can improve the matching between current sources if resistor mismatches 1 1+ gm Rs Vb • A(μn Cox), A(W/L) Pn Cox (W/L) + 8mARS where ARS denotes the mismatch between Rs1 and Rs2. Note that for an appreciable reduction of Al/ID, Rs must be greater than 1/gm. Figure 14.41 M1 ID1 M2 D2 卡 H. Rs1 2AVTH VGS - VTH R$2 (14.100)
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Related Book For
Fundamentals Of Electric Circuits
ISBN: 9780073301150
3rd Edition
Authors: Matthew Sadiku, Charles Alexander
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