In the following fig. ,find drain current of $M_4$ if all the transistors are in saturation

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In the following fig. ,find drain current of

$M_4$ if all the transistors are in saturation

written 7.0 years ago by

ankitkr602 • 0

modified 3.2 years ago by

pedsangini276 • 4.8k

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Subject: CMOS VLSI Design

Topic: CMOS analog building blocks

Difficulty: High

cmos vlsi design

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1 Answer

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written 7.0 years ago by

ankitkr602 • 0

Solution:

we have,

$I_{D_2}=I_{Ref}[\frac{(\frac{W}{L})_2}{(\frac{W}{L})_1}]$

Also, $I_{D_3}=I_{D_2}$

$\& I_{D_4}=I_{out}=\frac{(\frac{W}{L})_4}{(\frac{W}{L})_3}I_{D_3}$

$\therefore I_{out}=\frac{(\frac{W}{L})_4}{(\frac{W}{L})_3} \frac{(\frac{W}{L})_2}{(\frac{W}{L})_1} I_{Ref}$

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