Hybrid-pi model: Difference between revisions

Revision as of 03:05, 21 November 2015

Revision as of 22:10, 21 November 2015

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:<math>g_\text{m} = \left.\frac{i_\text{d}}{v_\text{gs}}\right\vert_{v_\text{ds} = 0}</math>

is the [[transconductance]], evaluated in the Shichman-Hodges model in terms of the [[Q-point]] drain current, <math>\scriptstyle I_\text{D}</math>, by (see Jaeger and Blalock:<ref name=Jaeger2>

{{cite book

|author=R.C. Jaeger and T.N. Blalock

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|isbn=0-07-232099-0

|url=http://worldcat.org/isbn/0072320990

}}</ref>):

:<math>g_\text{m} = \frac{2I_\text{D}}{V_{\text{GS}} - V_\text{th}}</math>,