A certain op-amp has three internal amplifier stages with midrange gains of 30 dB, 40 dB, and 20 dB....

Question

A certain op-amp has three internal amplifier stages with midrange gains of 30 dB, 40 dB, and 20 dB. Each stage also has a critical frequency associated with it as follows: f_c1= 600 Hz,

(a) What is the midrange open-loop gain of the op-amp, expressed in dB?

(b) What is the total phase shift through the amplifier, including inversion, when the signal frequency is 10 kHz?

David · Accepted Answer

Solution:- 
(a) It is given that, The midrange gains of op-amp are, 
'
1
'
2
'
3
1
1
1
01( )
01( )
01
30
40
20
,
600
50
200
:
30 40 20
90
,

A certain op-amp has three internal amplifier stages with midrange gains of 30 dB, 40 dB, and 20 dB. Each stage also has a critical frequency associated with it as follows: f c1 = 600 Hz, (a) What is...

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