ECE315_cascode&mirrors
Authored by Sameh Ibrahim
Engineering
University
Used 3+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a bipolar cascode stage, what is the maximum output impedance primarily limited by?
Collector current
Emitter resistance
Base current
rπ between emitter and ground
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary advantage of using a cascode amplifier?
Reduced size
Simpler design
Higher output impedance
Lower power consumption
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the typical output impedance of a bipolar cascode compared to a CE stage?
Lower
Equal
Higher
Unpredictable
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The output resistance of a cascode amplifier is given by:
rout=ro1
rout=ro1+ro2
rout=ro1∥ro2
rout=ro1(1+gm2ro2)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of a current mirror?
To reduce noise
To increase power supply
To sense and duplicate current
To amplify voltage
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