d) A difference amplifier circuit is shown in Figure 4.1. What is the role of the transistor T3 in this circuit? Now with reference to transistors T1 and T2 explain why when arbitrary input signals (Input 1 and Input 2) are applied what happens to their common signal and difference signal elements. Define its key figure of merit the CMRR? Output 1 Input 1 ® T₁ RB1 ww RB2 +Vcc Rc1 T3 Rc2₂ -0.7 V RE -VEE Figure 4.1 T₂ Output 2 Input 2
d) A difference amplifier circuit is shown in Figure 4.1. What is the role of the transistor T3 in this circuit? Now with reference to transistors T1 and T2 explain why when arbitrary input signals (Input 1 and Input 2) are applied what happens to their common signal and difference signal elements. Define its key figure of merit the CMRR? Output 1 Input 1 ® T₁ RB1 ww RB2 +Vcc Rc1 T3 Rc2₂ -0.7 V RE -VEE Figure 4.1 T₂ Output 2 Input 2
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Transcribed Image Text:d)
A difference amplifier circuit is shown in Figure 4.1. What is the role of the
transistor T3 in this circuit? Now with reference to transistors T1 and T2
explain why when arbitrary input signals (Input 1 and Input 2) are applied
what happens to their common signal and difference signal elements.
Define its key figure of merit the CMRR?
Output
1
Input
1
T₁
RB1
www
RB2
+Vcc
Rc1
T3
Rcz
-0.7 V
RE
-VEE
Figure 4.1
T₂
Output
2
Input
2
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