Estimate Power of CMOS Inverter Circuit - 0.12um Tech

In summary, the conversation discusses the estimation of power for a CMOS inverter circuit and the use of software for simulation purposes. The dynamic power calculation for the CMOS inverter is also mentioned, which depends on the parasitic capacitance. The speaker is using a 0.12um technology and has a question about determining wire capacitance. SPICE is suggested as a simulation software, but the speaker is looking for a freeware option.
  • #1
bilalarif
7
0
I want to estimate the power of a CMOS inverter circuit. I want to ask that is there any software for simulation purpose to give the power of CMOS inverter.

The second problem I have is that when you calculate the dynamic power of CMOS
dynamic power = Vdd2*CL*f
This dynamic power depends upon the parasitic capacitance . The total parasitic capacitance is equal to sum of internal capacitances of the CMOS + wire + load.

I am using 0.12um technology to implement my circuit. My question is about wire capacitance that how to determine the wire capacitance for given technology .
 
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  • #2
bilalarif said:
I want to estimate the power of a CMOS inverter circuit. I want to ask that is there any software for simulation purpose to give the power of CMOS inverter.

The second problem I have is that when you calculate the dynamic power of CMOS
dynamic power = Vdd2*CL*f
This dynamic power depends upon the parasitic capacitance . The total parasitic capacitance is equal to sum of internal capacitances of the CMOS + wire + load.

I am using 0.12um technology to implement my circuit. My question is about wire capacitance that how to determine the wire capacitance for given technology .

Welcome to the PF. You can use SPICE to simulate the inverter circuit. You will need the modeling parameters from your particular IC process, however. Those should be available to you -- you can generally get them from the IC fab vendor.
 
  • #3
can u tell me any freeware for simulation.
 

1. What is the purpose of estimating the power of a CMOS inverter circuit?

The purpose of estimating the power of a CMOS inverter circuit is to determine the amount of energy consumption of the circuit, which is important for designing efficient and low power electronic devices.

2. How is the power of a CMOS inverter circuit estimated?

The power of a CMOS inverter circuit can be estimated by analyzing the individual components and their respective power consumption, such as the transistors and resistors, and then combining them to calculate the total power consumption of the circuit.

3. Why is 0.12um technology specifically mentioned in the title?

0.12um technology refers to the size of the transistors used in the CMOS inverter circuit. The smaller the size, the more compact and efficient the circuit can be. This technology is commonly used in modern electronic devices, making it a relevant factor in estimating the power of the circuit.

4. Are there any limitations to estimating the power of a CMOS inverter circuit?

Yes, there are limitations to estimating the power of a CMOS inverter circuit. The accuracy of the estimation may vary depending on factors such as temperature, voltage, and manufacturing process. Additionally, the estimation is based on assumptions and simplifications, so it may not reflect the exact power consumption of the circuit.

5. How can the estimated power of a CMOS inverter circuit be used in practical applications?

The estimated power of a CMOS inverter circuit can be used in practical applications to optimize the design of electronic devices, minimize power consumption, and improve battery life. It can also be used in performance analysis and comparison of different circuit designs.

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