Compare results find with and without
|
d�RD � |
gm | ||
|---|---|---|---|---|
Av � �gm(RF�rd�RD) |
(9.50) | |||
|
||||
12 V
2 kΩ
| 1 ∝F | 1 ∝F | Zo | |||
|---|---|---|---|---|---|
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
mRD |
���1 � (1.63 mS)(2 k�) 10 M� |
|
|---|
|
|---|
CONFIGURATION
| VDD |
|---|
| R1 | D | Vo | Vi | D | Zo | Vo | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Vi | C1 |
|
|
||||||||||
| S | CS | ||||||||||||
| Zi | |||||||||||||
| Zi | R2 | gmVgs | rd | ||||||||||
| RS | |||||||||||||
| Figure 9.41 |
|
Chapter 9 | – |
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| Figure 9.42 | AC equivalent network for the configuration of Fig. 9.41. | ||||||||||||
