The two-stage amplifier employed a FET source-follower configuration prior to a voltage divider configuration as shown in Figure 4. For the multistage amplifier of Figure 4: (i) Calculate loaded voltage gain Avi for each stage. (ii) Calculate output voltage at first stage and second stage amplifier if input voltage at first stage Vit is 25mV. (iii) Determine all the high cut-off frequeney components for each stage by referring parameters in Table 1. All parameters are used for both stages amplifier. (iv) Decide which value contributes to the high cut-off frequeney for the amplifier. R, Self-bias Voltage divider Z, = 1MQ 2, = 3602 A 5 2, =SMQ Z,=4.6k2 A R 2.2 ka V. 40 NL NL Figure 4 Table 1 Parameter Value Cgd 2pF Cgs 4pF Cds 0.5pF Cwi 5pF Cwo 6pF +

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The two-stage amplifier employed a FET source-follower configuration prior to a voltage
divider configuration as shown in Figure 4. For the multistage amplifier of Figure 4:
(i)
Calculate loaded voltage gain AvL for each stage.
(ii)
Calculate output voltage at first stage and second stage amplifier if input voltage at
first stage Vit is 25mV.
(iii) Determine all the high cut-off frequency components for each stage by referring
parameters in Table 1. All parameters are used for both stages amplifier.
(iv) Decide which value contributes to the high cut-off frequency for the amplifier.
R,
Self-bias
Voltage divider
1 ka
Z,= 1MQ
2, = 3602
A 5
Z,=SMQ
2,= 4.6 k2
A= - 40
R, 2.2 ka V.
NL
NL
Figure 4
Table 1
Parameter
Value
Cgd
2pF
Cgs
4pF
Cds
0.5pF
Cwi
SpF
Cwo
6pF
Transcribed Image Text:The two-stage amplifier employed a FET source-follower configuration prior to a voltage divider configuration as shown in Figure 4. For the multistage amplifier of Figure 4: (i) Calculate loaded voltage gain AvL for each stage. (ii) Calculate output voltage at first stage and second stage amplifier if input voltage at first stage Vit is 25mV. (iii) Determine all the high cut-off frequency components for each stage by referring parameters in Table 1. All parameters are used for both stages amplifier. (iv) Decide which value contributes to the high cut-off frequency for the amplifier. R, Self-bias Voltage divider 1 ka Z,= 1MQ 2, = 3602 A 5 Z,=SMQ 2,= 4.6 k2 A= - 40 R, 2.2 ka V. NL NL Figure 4 Table 1 Parameter Value Cgd 2pF Cgs 4pF Cds 0.5pF Cwi SpF Cwo 6pF
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