When resistance is used instead of the PMOS transistor in a CMOS inverter circuit, it disrupts the normal operation of the circuit. In a CMOS inverter, both PMOS and NMOS transistors work together to invert the input signal.
The PMOS transistor’s job is to pull the output voltage to a logically high level (VDD) when the input signal is logically low (ground). It acts as a switch, allowing or blocking the current flow based on the input signal. However, if resistance is substituted for the PMOS transistor, it cannot perform its switching function properly.
Using a resistance instead of the PMOS transistor causes a continuous flow of current through the circuit. As a result, the output voltage remains constant, regardless of the input signal. The inverter loses its ability to invert the input signal and provide the expected logical levels at the output. This can significantly impact the circuit’s functionality, leading to incorrect or unpredictable operation.
- Cascaded CMOS Inverters
- Are there any limitations to using cascaded CMOS inverters?
- Are cascaded CMOS inverters more prone to signal delays?
- Can cascaded CMOS inverters be used in low-power applications?
- Can be cascaded CMOS inverters improve noise immunity in digital circuits?
- Why cascaded CMOS inverters of different ratios are better than a single inverter?
- Why do we gradually increase the size of a CMOS inverter in each cascaded stage?
- How do You adjust the CMOS inverter to either reduce leakage or decrease delay?
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