MFETTMod - model. Therefore, the two models are equivalent....

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T Model with Body E f ect The T model of the MOSFET is shown in Fig. 1. The resistor r 0 is given by Eq. ( ?? ). The resistors r s and r sb are given by r s = 1 g m (1) r sb = 1 g mb = 1 χg m = r s χ (2) where g m and g mb are the transconductances de f nedinEqs .( ?? )and( ?? ). The currents are given by i d = i sg + i sb + v ds r 0 (3) i sg = v gs r s = g m v gs (4) i sb = v bs r sb = g mb v bs (5)
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Unformatted text preview: model. Therefore, the two models are equivalent. Note that the gate and body currents are zero because the two controlled sources supply the currents that F ow through r s and r sb . Figure 1: T model of the MOSFET. 1...
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This note was uploaded on 05/26/2011 for the course ECE 3050 taught by Professor Hollis during the Summer '08 term at Georgia Institute of Technology.

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