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Input Capacitance of Gate Calculator

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✖Drive of arbitrary gate is arbitrary gate is defined as often more intuitive to characterize gates by their drive, x, rather than their input capacitance.ⓘ Drive of Arbitrary Gate [x]
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✖Logical effort of each input to the gate is the sum of the widths of all transistors whose gate is in contact with that input node. The default value for NAND gate is 4/3.ⓘ Logical Effort [g]
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✖Input capacitance is the capacitance between the input terminals of an op amp with either input grounded.ⓘ Input Capacitance of Gate [Cin]
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Input Capacitance of Gate

Formula
`"C"_{"in"} = "x"*"g" `

Example
`"48.79pF"="10.25pF"*"4.76" `

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Input Capacitance of Gate Solution

STEP 0: Pre-Calculation Summary
Formula Used
Input Capacitance = Drive of Arbitrary Gate*Logical Effort
Cin = x*g
This formula uses 3 Variables
Variables Used
Input Capacitance - (Measured in Farad) - Input capacitance is the capacitance between the input terminals of an op amp with either input grounded.
Drive of Arbitrary Gate - (Measured in Farad) - Drive of arbitrary gate is arbitrary gate is defined as often more intuitive to characterize gates by their drive, x, rather than their input capacitance.
Logical Effort - Logical effort of each input to the gate is the sum of the widths of all transistors whose gate is in contact with that input node. The default value for NAND gate is 4/3.
STEP 1: Convert Input(s) to Base Unit
Drive of Arbitrary Gate: 10.25 Picofarad --> 1.025E-11 Farad (Check conversion here)
Logical Effort: 4.76 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Cin = x*g --> 1.025E-11*4.76
Evaluating ... ...
Cin = 4.879E-11
STEP 3: Convert Result to Output's Unit
4.879E-11 Farad -->48.79 Picofarad (Check conversion here)
FINAL ANSWER
48.79 Picofarad <-- Input Capacitance
(Calculation completed in 00.003 seconds)
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Created by Shobhit Dimri
Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat
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13 Fundamental Parameters Calculators

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Go Power Supply Rejection Ratio = 20*log10(Input Voltage Ripple/Output Voltage Ripple)
Switching Power in CMOS
Go Switching Power = (Positive Voltage^2)*Frequency*Capacitance
Scaled Drain Current of MOSFET
Go Drain Current of Scaled MOSFET = Drain Current of MOSFET/Scaling Factor of MOSFET
Oxide Capacitance of Scaled MOSFET
Go Scaled MOSFET Capacitance of Oxide = Oxide Capacitance/Scaling Factor of MOSFET
Capacitance Onpath
Go Capacitance Onpath = Total Capacitance Seen by a Stage-Capacitance Offpath
Total Capacitance Seen by Stage
Go Total Capacitance Seen by a Stage = Capacitance Onpath+Capacitance Offpath
Capacitance Offpath
Go Capacitance Offpath = Total Capacitance Seen by a Stage-Capacitance Onpath
Input Capacitance of Gate
Go Input Capacitance = Drive of Arbitrary Gate*Logical Effort
Output Clock Phase
Go Output Clock Phase = 2*3.14*VCO Control Voltage*VCO Gain
Capacitance of External Load
Go Capacitance of External Load = Fanout*Input Capacitance
Static Current
Go Static Current = Static Power/Drain Voltage
Static Power Dissipation
Go Static Power = Static Current*Drain Voltage

Input Capacitance of Gate Formula

Input Capacitance = Drive of Arbitrary Gate*Logical Effort
Cin = x*g

What is the relation between drive and gates?

A good standard cell library contains multiple sizes of each common gate. The sizes are typically labeled with their drive. rent as the inverter is called nand2_1x. It is often more intuitive to characterize gates by their drive, x, rather than their input capacitance.

How to Calculate Input Capacitance of Gate?

Input Capacitance of Gate calculator uses Input Capacitance = Drive of Arbitrary Gate*Logical Effort to calculate the Input Capacitance, The Input capacitance of gate formula is defined as capacitance obtained by totaling gate-source capacitance. Input Capacitance is denoted by Cin symbol.

How to calculate Input Capacitance of Gate using this online calculator? To use this online calculator for Input Capacitance of Gate, enter Drive of Arbitrary Gate (x) & Logical Effort (g) and hit the calculate button. Here is how the Input Capacitance of Gate calculation can be explained with given input values -> 48.79 = 10.25*4.76 .

FAQ

What is Input Capacitance of Gate?
The Input capacitance of gate formula is defined as capacitance obtained by totaling gate-source capacitance and is represented as Cin = x*g or Input Capacitance = Drive of Arbitrary Gate*Logical Effort . Drive of arbitrary gate is arbitrary gate is defined as often more intuitive to characterize gates by their drive, x, rather than their input capacitance & Logical effort of each input to the gate is the sum of the widths of all transistors whose gate is in contact with that input node. The default value for NAND gate is 4/3.
How to calculate Input Capacitance of Gate?
The Input capacitance of gate formula is defined as capacitance obtained by totaling gate-source capacitance is calculated using Input Capacitance = Drive of Arbitrary Gate*Logical Effort . To calculate Input Capacitance of Gate, you need Drive of Arbitrary Gate (x) & Logical Effort (g). With our tool, you need to enter the respective value for Drive of Arbitrary Gate & Logical Effort and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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