Orzi rercfro obtained earlier including parallel with fig

or	Zi �� F	ro�10RC
Zo � ro�RC�RF

For ro � 10RC,

and since RC/RF is typically much less than one,

� 11.53 �A

���180 k� � (200)2.7 k�9 V � 0.7 V

��1� � �R
re

R
�
C

8
.7

0
�k

�
�1

0
�

(d) Av � ��R re C� � ��1 2

1
7

�
R

� ��RC ���180 k� � (200)(2.7 k�) (200)(180 k�)

� 617.7 � vs. 560.5 � above