Compare results find with and without

Phase Relationship: The negative sign for Av reveals that Vo and Vi are out of

phase by 180°.

12 V

2 kΩ

	1 ∝F		1 ∝F	Zo
	1 ∝F

Zi

Figure 9.40 Drain-feedback amplifier from Example 6.11.

1

os

Zi ��1 R

�g m(� �r

��1�� 2.42 M�3 .1 3

9.10 E-MOSFET Drain-Feedback Configuration 431

	E-MOSFET VOLTAGE-DIVIDER

CONFIGURATION

VDD

R1			Vo	Vi			D
Vi	C1	G	Zo
S			CS
Zi
Zi				Zi		R2	gmVgs	rd
RS				Zi		R2	gmVgs	rd
Figure 9.41		E-MOSFET	Chapter 9	–			S
Figure 9.41		E-MOSFET		Figure 9.42	AC equivalent network for the configuration of Fig. 9.41.
				Figure 9.42	AC equivalent network for the configuration of Fig. 9.41.