Ground Capacitance Formula

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Ground Capacitance is the capacitance at the ground of the CMOS Circuit. Check FAQs
Cgnd=(VagrCadjVtm)-Cadj
Cgnd - Ground Capacitance?Vagr - Agressor Voltage?Cadj - Adjacent Capacitance?Vtm - Victim Voltage?

Ground Capacitance Example

With values
With units
Only example

Here is how the Ground Capacitance equation looks like with Values.

Here is how the Ground Capacitance equation looks like with Units.

Here is how the Ground Capacitance equation looks like.

2.9804Edit=(17.5Edit8Edit12.75Edit)-8Edit
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Ground Capacitance Solution

Follow our step by step solution on how to calculate Ground Capacitance?

FIRST Step Consider the formula
Cgnd=(VagrCadjVtm)-Cadj
Next Step Substitute values of Variables
Cgnd=(17.5V8pF12.75V)-8pF
Next Step Convert Units
Cgnd=(17.5V8E-12F12.75V)-8E-12F
Next Step Prepare to Evaluate
Cgnd=(17.58E-1212.75)-8E-12
Next Step Evaluate
Cgnd=2.98039215686275E-12F
Next Step Convert to Output's Unit
Cgnd=2.98039215686275pF
LAST Step Rounding Answer
Cgnd=2.9804pF

Ground Capacitance Formula Elements

Variables
Ground Capacitance
Ground Capacitance is the capacitance at the ground of the CMOS Circuit.
Symbol: Cgnd
Measurement: CapacitanceUnit: pF
Note: Value should be greater than 0.
Agressor Voltage
Agressor Voltage refers to the avoided voltage in a CMOS circuit, which is typically a small positive voltage added to the input signal to avoid unwanted triggering of the circuit.
Symbol: Vagr
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.
Adjacent Capacitance
Adjacent capacitance is the capacitance at adjacent point.
Symbol: Cadj
Measurement: CapacitanceUnit: pF
Note: Value should be greater than 0.
Victim Voltage
Victim Voltage is calculated when the victim being actively driven, then the driver will supply current to oppose to reduce the victim's noise.
Symbol: Vtm
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.

Other formulas in Array Datapath Subsystem category

​Go Carry-Ripple Adder Critical Path Delay
Tripple=tpg+(Ngates-1)Tao+Txor
​Go 'XOR' Delay
Txor=Tripple-(tpg+(Ngates-1)Tao)
​Go N-Bit Carry-Skip Adder
Ncarry=nK
​Go K-Input 'And' Gate
K=Ncarryn

How to Evaluate Ground Capacitance?

Ground Capacitance evaluator uses Ground Capacitance = ((Agressor Voltage*Adjacent Capacitance)/Victim Voltage)-Adjacent Capacitance to evaluate the Ground Capacitance, The Ground Capacitance formula is defined as the ratio of the amount of electric charge stored on a conductor to the difference in electric potential. Ground Capacitance is denoted by Cgnd symbol.

How to evaluate Ground Capacitance using this online evaluator? To use this online evaluator for Ground Capacitance, enter Agressor Voltage (Vagr), Adjacent Capacitance (Cadj) & Victim Voltage (Vtm) and hit the calculate button.

FAQs on Ground Capacitance

What is the formula to find Ground Capacitance?
The formula of Ground Capacitance is expressed as Ground Capacitance = ((Agressor Voltage*Adjacent Capacitance)/Victim Voltage)-Adjacent Capacitance. Here is an example- 3E+12 = ((17.5*8E-12)/12.75)-8E-12.
How to calculate Ground Capacitance?
With Agressor Voltage (Vagr), Adjacent Capacitance (Cadj) & Victim Voltage (Vtm) we can find Ground Capacitance using the formula - Ground Capacitance = ((Agressor Voltage*Adjacent Capacitance)/Victim Voltage)-Adjacent Capacitance.
Can the Ground Capacitance be negative?
No, the Ground Capacitance, measured in Capacitance cannot be negative.
Which unit is used to measure Ground Capacitance?
Ground Capacitance is usually measured using the Picofarad[pF] for Capacitance. Farad[pF], Kilofarad[pF], Millifarad[pF] are the few other units in which Ground Capacitance can be measured.
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