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Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  The drawback of the BiCMOS circuits are:a)Sen... Start Learning for Free
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The drawback of the BiCMOS circuits are:
  • a)
    Sensitivity is less load capacitance
  • b)
    Bipolar transistors are used for driving current to the load capacitance but not for the logic operations
  • c)
    Increased fabrication Complexity
  • d)
    All of the mentioned
Correct answer is option 'C'. Can you explain this answer?
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The drawback of the BiCMOS circuits are:a)Sensitivity is less load cap...
The other 2 are the merits of BiCMOS, Increased fabrication Complexity is a demerit of BiCMOS circuits.
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The drawback of the BiCMOS circuits are:a)Sensitivity is less load cap...
Drawbacks of BiCMOS Circuits

BiCMOS or Bipolar Complementary Metal Oxide Semiconductor circuits are a combination of bipolar and CMOS technologies. These circuits have both NMOS and PMOS transistors as well as bipolar transistors. BiCMOS circuits are known for their high speed, low power consumption, and high output drive capability. However, there are some drawbacks associated with BiCMOS circuits, and they are as follows:

1. Increased Fabrication Complexity

The integration of bipolar and CMOS technologies in BiCMOS circuits increases the fabrication complexity. The fabrication process involves multiple steps, including the formation of the bipolar transistors and the CMOS transistors. The integration of these two technologies requires careful design and fabrication, which increases the overall cost and complexity of the process.

2. Sensitivity is Less Load Capacitance

BiCMOS circuits use bipolar transistors for driving current to the load capacitance. However, the sensitivity of these circuits is less load capacitance. This means that BiCMOS circuits are not suitable for applications that require high load capacitance.

3. Bipolar Transistors are Used for Driving Current to the Load Capacitance but not for Logic Operations

BiCMOS circuits use bipolar transistors for driving current to the load capacitance, but they are not used for logic operations. This means that bipolar transistors are only used for a specific purpose in BiCMOS circuits, and their use is limited.

Conclusion

In conclusion, BiCMOS circuits have some drawbacks associated with them, including increased fabrication complexity, sensitivity to load capacitance, and limited use of bipolar transistors. However, despite these drawbacks, BiCMOS circuits are still widely used in various applications due to their high speed, low power consumption, and high output drive capability.
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it depends on the length of the conductor the capacitance of the line is proportional to the length of the transmission line their effect is negligible on the performance of short having a length less than 80 km and low voltage transmission accidents of the transmission line along with the conductances forms the shunted mittens the conductance and the transmission line is because of the leakage over the surface of the conductor considered a line consisting of two conductors and be each of radius are the distance between the conductors being Des shown in the diagram below minus the potential difference between the conductors and via's work QA charge on conductor QB charge on conductor vvab pencil difference between conductor and the Epsilon minus absolute primitivity QA plus QV = 0 so that QA equals QB - equals DBA equals data equals DB equals our substituting these values and voltage equation we get the capacitance between the conductors is cab is referred to as lying to line capacitance if the two conductors are in VR oppositely charge then the potential difference between them is zero then the potential of each conductor is given by one half bath the capacitance between each conductor and point of zero potential and is capacitive CN is called the capacitance to neut or capacitance to ground capacitance cab is the combination of two equal capacity and VN series thus capacitance to neutral is twice the capacitance between the conductors IE CN equals to Cave the absolute primitivity Epsilon is given by Epsilon equals epsilono Epsilon are where epsilano is the permittivity of the free space and Epsilon or is the relative primitivity of the medium prayer capacitance reactants between one conductor and neutral capacitance of the symmetrical three phase line let a balanced system of voltage be applied to a symmetrical three-phase line shown below the phasor diagram of the three phase line with equilateral spacing is shown below take the voltage of conductor to neutral as a reference phaser the potential difference between conductor and we can be written the similarly potential difference between conductors and sea is on adding equations one and two we get also combining equation three and four from equation 6 and 7 the line to neutral capacitance the capacitance of symmetrical three phase line is same as that of the two wire line Related: Capacitance of Transmission Lines?

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The drawback of the BiCMOS circuits are:a)Sensitivity is less load capacitanceb)Bipolar transistors are used for driving current to the load capacitance but not for the logic operationsc)Increased fabrication Complexityd)All of the mentionedCorrect answer is option 'C'. Can you explain this answer?
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