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CMOS Question & Answers

August 30, 2022 By WatElectronics

This article lists 75 CMOS MCQs for engineering students. All the CMOS Questions & Answers given below include a hint and a link wherever possible to the relevant topic. This is helpful for users who are preparing for their exams, interviews, or professionals who would like to brush up on the fundamentals of the CMOS.

The CMOS is used to perform logical functions and the CMOS section is divided into two main parts that are PMOS and NMOS. The static CMOS, dynamic CMOS, domino logic CMOS, and dual rail domino logic come under the CMOS logic family. The static CMOS is implemented by building the pull-down and pull-up switching networks. 

The basic features of static CMOS logic are; that there will be no cascading issues, noise margins are relatively high, the input impedance is high, the output impedance is low, and the path between ground & Vdd is zero and steady. 

The PMOS, Bi-MOS, CMOS, and NMOS come under the MOS logic family. The PMOS logic family uses only P-channel MOSFETS, the NMOS logic family uses only N-channel MOSFETS, the CMOS logic family uses both N and P-channel devices, and the BI-MOS logic family uses both MOS devices and bipolar devices. 

The large fan-out capability, low power dissipation, very high noise margin and very high noise immunity, low propagation delay are the advantages of CMOS. The CMOS is used in registers, microcontrollers, microchips, and other digital circuits. 

1). In which one of the following IC technology, the switch implementation is good?

Hint
2). Which one of the following is an example of small-scale integration?

Hint
3). What is the standard form of PPS?

Hint
4). What are the advantages of CMOS image sensors?

Hint
5). What is the standard form of PDN?

Hint
6). The AC voltage gain of P-channel active load inverter is ______?

Hint
7). What is the standard form of VCCS amplifier?

Hint
8). The output power of transformer coupling and artificial dielectric differential transmission is ___________ dBm?

Hint
9). The figure shown below is a circuit diagram of ______ inverter?

CMOS Inverter Circuit Diagram

Hint
10). What is the standard form of VTCMOS?

Hint
11). In which year, the vacuum tube diode was invented?

Hint
12). What is the standard form of VCVS amplifier?

Hint
13). The output power of continuous gate voltage control is ________ dBm?

Hint
14). The access time of 16 MB CMOS SRAM is______ nano seconds?

Hint
15). What is the standard from of SFPL?

Hint
16). Which one of the following also known as zipper CMOS?

Hint
17). What is the standard from of CVSL?

Hint
18). The AC voltage gain of n-channel active load inverter is ______?

Hint
19). The figure shown below is a block diagram of ________ logic?

CMOS Static Logic

Hint
20). What is the standard form of MTCMOS?

Hint

CMOS MCQs for Interviews

21). In which year, the semiconductor replacing vacuum tube was invented?

Hint
22). The AC output resistance of n channel depletion load inverter is _______?

Hint
23). The output power of transformer-based voltage type is _________ dBm?

Hint
24). The access time of 256 MB CMOS DRAM is _______ nano seconds?

Hint
25). The standby power of 256 MB CMOS DRAM is _______ W/Mbit?

Hint
26). What is the standard form of C^2MOS?

Hint
27). Which one of the following logics comes under bipolar family?

Hint
28). The AC voltage gain of current source load inverter is ______?

Hint
29). The figure shown below is a structure of _________ logic?

Static CMOS Structure

Hint
30). What is the standard form of CVSL?

Hint
31). In which year, the point contact transfer resistance device BJT was invented?

Hint
32). Which one of the following is an example of ultra-large-scale integration?

Hint
33). Which one of the following is an example of giant scale integration?

Hint
34). What is the standard form of APS?

Hint
35). The active pixel sensors are categorized into ______ types?

Hint
36). The AC voltage gain of n-channel depletion load inverter is _______?

Hint
37). The output power of stacked NMOS and PMOS structure is ________ dBm?

Hint
38). The speed of 256 MB CMOS DRAM is________ GHz?

Hint
39). The figure shown below is a logic structure of _______?

Dynamic CMOS Logic Structure

Hint
40). What is the standard form of TSPC?

Hint

CMOS MCQs for Exams

41). In which year, the junction transistor was invented?

Hint
42). Which one of the following is an example of very large-scale integration?

Hint
43). What is the standard form of PUN?

Hint
44). The AC output resistance of p-channel active load inverter is ______?

Hint
45). The output power of stacked NMOS and transformer PMOS is ________ dBm?

Hint
46). The standby power of 16 MB CMOS SRAM is _____________ W/Mbit?

Hint
47). Which one of the following comes under MOS family?

Hint
48). What is the standard form of Bi-MOS?

Hint

Read more about CMOS and NMOS

49). The figure shown below is a block diagram of two stage __________________ power amplifier?

Block Diagram of Two stage CMOS Power Amplifier

Hint
50). Which one of the following is a type of static circuit?

Hint

CMOS Important MCQs for Quiz

51). Who invented integrated circuits F/F with 2-T germanium slice and gold wires?

Hint
52). In which one of the following IC technology the switch implementation is poor?

Hint
53). Which one of the following is an example of large-scale integration?

Hint
54). What is the standard form of PGA?

Hint
55). The AC output resistance of n-channel active load inverter is ________________?

Hint
56). The density of 16 MB CMOS SRAM is _____________ Mbit/cm^2?

Hint
57). What is the standard form of I2L?

Hint
58). Which one of the following logics also known as current mode logic?

Hint
59). The figure shown below is a block diagram of __________________ Schmitt trigger?

CMOS Schmitt Trigger

Hint
60). Which one of the following is a type of dynamic circuit?

Hint
61). Who invented first MOSFET?

Hint
62). How many types of design rules are there?

Hint
63). The CMOS image sensors are categorised into_________ types?

Hint
64). The AC output resistance of current source load inverter is _______?

Hint
65). What is the standard form of TSPCR?

Hint
66). Which one of the following logic family uses both MOS devices and bipolar devices?

Hint
67). Which one of the following logic family uses both P and N channel devices?

Hint
68). Which one of the following logic family using only N channel MOSFETS?

Hint
69). The figure shown below is a block diagram of __________ Schmitt trigger?

C2MOS Based Dual Edge Triggered Register

Hint
70). What is the standard form of LOCOS?

Hint
71). Who invented common metal oxide semiconductor that is CMOS?

Hint
72). Which one of the following is an example of medium scale integration?

Hint
73). What is the standard form of CCD image sensor?

Hint
74). What is the standard form of DIP?

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75). The speed of 16 MB CMOS SRAM is _____________ GHz?

Hint
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