Off-Path Capacitance of CMOS Calculator

✖Capacitance Onpath is defined as the capacitance along the analyzing path.ⓘ Capacitance Onpath [C_onpath]			+10% -10%
✖Branching Effort current is directed along the path we are analyzing, and some is directed off that path.ⓘ Branching Effort [b]			+10% -10%

✖Capacitance Offpath is defined as the capacitance of the off-path capacitance of the logic gate.ⓘ Off-Path Capacitance of CMOS [C_offpath]

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Off-Path Capacitance of CMOS Solution

STEP 0: Pre-Calculation Summary

Formula Used

Capacitance Offpath = Capacitance Onpath*(Branching Effort-1)
C_offpath = C_onpath*(b-1)
This formula uses 3 Variables

Variables Used

Capacitance Offpath - (Measured in Farad) - Capacitance Offpath is defined as the capacitance of the off-path capacitance of the logic gate.
Capacitance Onpath - (Measured in Farad) - Capacitance Onpath is defined as the capacitance along the analyzing path.
Branching Effort - Branching Effort current is directed along the path we are analyzing, and some is directed off that path.

STEP 1: Convert Input(s) to Base Unit

Capacitance Onpath: 3.2 Picofarad --> 3.2E-12 Farad (Check conversion here)
Branching Effort: 3.81 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

C_offpath = C_onpath*(b-1) --> 3.2E-12*(3.81-1)

Evaluating ... ...

C_offpath = 8.992E-12

STEP 3: Convert Result to Output's Unit

8.992E-12 Farad -->8.992 Picofarad (Check conversion here)

FINAL ANSWER

8.992 Picofarad <-- Capacitance Offpath

(Calculation completed in 00.004 seconds)

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< CMOS Design Characteristics Calculators

Built-in Potential

LaTeX Go Built-in Potential = Thermal Voltage*ln((Acceptor Concentration*Donor Concentration)/(Intrinsic Electron Concentration^2))

Capacitance Onpath

LaTeX Go Capacitance Onpath = Total Capacitance in Stage-Capacitance Offpath

Change in Frequency Clock

LaTeX Go Change in Frequency of Clock = VCO Gain*VCO Control Voltage

Static Current

LaTeX Go Static Current = Static Power/Base Collector Voltage

Off-Path Capacitance of CMOS Formula

LaTeX Go

Capacitance Offpath = Capacitance Onpath*(Branching Effort-1)
C_offpath = C_onpath*(b-1)

What is Drive of Arbitrary Gate?

Drive of Arbitrary Gate
represents the drive strength provided by an arbitrary gate when driving the gate under consideration. It's typically expressed in terms of the number of equivalent inputs of the reference gate (often an inverter). It's a dimensionless quantity.

How to Calculate Off-Path Capacitance of CMOS?

Off-Path Capacitance of CMOS calculator uses Capacitance Offpath = Capacitance Onpath*(Branching Effort-1) to calculate the Capacitance Offpath, Off-Path Capacitance of CMOS refers to the capacitive charging of the substrate due to the connection of the gates to the substrate through the gate electrodes. Capacitance Offpath is denoted by C_offpath symbol.

How to calculate Off-Path Capacitance of CMOS using this online calculator? To use this online calculator for Off-Path Capacitance of CMOS, enter Capacitance Onpath (C_onpath) & Branching Effort (b) and hit the calculate button. Here is how the Off-Path Capacitance of CMOS calculation can be explained with given input values -> -480000000000 = 3.2E-12*(3.81-1).

FAQ

What is Off-Path Capacitance of CMOS?

Off-Path Capacitance of CMOS refers to the capacitive charging of the substrate due to the connection of the gates to the substrate through the gate electrodes and is represented as C_offpath = C_onpath*(b-1) or Capacitance Offpath = Capacitance Onpath*(Branching Effort-1). Capacitance Onpath is defined as the capacitance along the analyzing path & Branching Effort current is directed along the path we are analyzing, and some is directed off that path.

How to calculate Off-Path Capacitance of CMOS?

Off-Path Capacitance of CMOS refers to the capacitive charging of the substrate due to the connection of the gates to the substrate through the gate electrodes is calculated using Capacitance Offpath = Capacitance Onpath*(Branching Effort-1). To calculate Off-Path Capacitance of CMOS, you need Capacitance Onpath (C_onpath) & Branching Effort (b). With our tool, you need to enter the respective value for Capacitance Onpath & Branching Effort and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Capacitance Offpath?

In this formula, Capacitance Offpath uses Capacitance Onpath & Branching Effort. We can use 1 other way(s) to calculate the same, which is/are as follows -

Capacitance Offpath = Total Capacitance in Stage-Capacitance Onpath

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