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Subtrheshold differential pair

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engrMunna

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Hi, in subthreshold region the drain current is given by equation 5.41. My question is that for a differential pair in subtrheshold region, how can we get equation 8.14 from 5.41. Please see the attached figure for equations.
 

erikl

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... how can we get equation 8.14 from 5.41. Please see the attached figure for equations.

Wasn't quite straight forward, it fits, however. Pls. s. below!
 

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