Micro Electronics
11. An IC op-amp that combines FETs and bipolar transistors.
- BIFET
- MOSFET
- CMOS
- IGFET
12. An integrated circuit for both astable and monostable applications
- 741 op-amp
- Discrete ICs
- Monolithic ICs
- 555 timer
Correct answer: (D)
555 timer
13. An integrator op-amp uses what element in the feedback path?
- Capacitor
- Resistor
- Inductor
- Transistor
Correct answer: (A)
Capacitor
14. An op-amp circuit that has its output tied directly to the inverting input terminal is called a __________
- Current follower
- Inverting amplifier
- Non-inverting amplifier
- Voltage follower
Correct answer: (D)
Voltage follower
15. An oscillator is described by
- Regenerative feedback
- No feedback
- An integrator or differentiator
- Unity gain and zero phase shift around the feedback loop
Correct answer: (D)
Unity gain and zero phase shift around the feedback loop
16. Astable multivibrator is
- A square wave clock
- Equivalent to a flip-flop
- A one-shot multivibrator
- Monostable in nature
Correct answer: (A)
A square wave clock
17. CMRR means
- Common-mode rejection ratio
- The ratio of the differential voltage gain to common-mode voltage gain
- Both a and b
- The difference between the two base voltages
Correct answer: (C)
Both a and b
18. Considered as the fundamental form of IC
- Hybrid
- MSI
- VLSI
- Monolithic
Correct answer: (D)
Monolithic
19. Dual-in-line pick up (DIP) is the most popular IC package because
- It is low in cost
- It is one of the tiniest package known
- It ruggedly resist vibration due to its solid construction
- All of the above
Correct answer: (D)
All of the above
20. For a constant input voltage to an integrator, why is the voltage across the capacitor linear?
- Capacitor diode does not dissipate heat
- Capacitor current is constantly changing
- Capacitor current is linear
- Capacitor current is constant
Correct answer: (D)
Capacitor current is constant