Edge Rate Calculator

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CMOS Delay Characteristics

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CMOS Time Characteristics

✖Rise Time is defined as the time required for a pulse to rise from 10 per cent to 90 per cent of its steady value in CMOS devices.ⓘ Rise Time [t_r]			+10% -10%
✖Fall time is time for a waveform to fall from 80% to 20% of its steady-state value.ⓘ Fall Time [t_f]			+10% -10%

✖Edge rate is defined as the ratio of rise time to the fall time.ⓘ Edge Rate [t_e]

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Formula

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Edge Rate

Formula

`"t"_{"e"} = ("t"_{"r"}+"t"_{"f"})/2`

Example

`"6ns"=("2.8ns"+"9.2ns")/2`

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Edge Rate Solution

STEP 0: Pre-Calculation Summary

Formula Used

Edge Rate = (Rise Time+Fall Time)/2
t_e = (t_r+t_f)/2
This formula uses 3 Variables

Variables Used

Edge Rate - (Measured in Second) - Edge rate is defined as the ratio of rise time to the fall time.
Rise Time - (Measured in Second) - Rise Time is defined as the time required for a pulse to rise from 10 per cent to 90 per cent of its steady value in CMOS devices.
Fall Time - (Measured in Second) - Fall time is time for a waveform to fall from 80% to 20% of its steady-state value.

STEP 1: Convert Input(s) to Base Unit

Rise Time: 2.8 Nanosecond --> 2.8E-09 Second (Check conversion here)
Fall Time: 9.2 Nanosecond --> 9.2E-09 Second (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t_e = (t_r+t_f)/2 --> (2.8E-09+9.2E-09)/2

Evaluating ... ...

t_e = 6E-09

STEP 3: Convert Result to Output's Unit

6E-09 Second -->6 Nanosecond (Check conversion here)

FINAL ANSWER

6 Nanosecond <-- Edge Rate

(Calculation completed in 00.004 seconds)

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Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

Shobhit Dimri has created this Calculator and 900+ more calculators!

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< 13 CMOS Delay Characteristics Calculators

Delay Rise

Go Delay Rise = Intrinsic Rise Delay+(Rise Resistance*Delay Capacitance)+(Slope Rise*Delay Previous)

Delay of AND-OR Gate in Gray Cell

Go Delay of AND OR Gate = (Critical Path Delay-Total Propagation Delay-XOR Gate Delay)/(Gates on Critical Path-1)

Delay of 1-Bit Propagate Gates

Go Total Propagation Delay = Critical Path Delay-((Gates on Critical Path-1)*Delay of AND OR Gate+XOR Gate Delay)

Propagation Delay in Circuit

Go Circuit Propagation Delay = (Propagation Delay High to Low+Propagation Delay Low to High)/2

Propagation Delay without Parasitic Capacitance

Go Propagation Delay Capaitance = Circuit Propagation Delay/Normalized Delay

Propagation Delay

Go Total Propagation Delay = Normalized Delay*Propagation Delay Capaitance

Normalized Delay

Go Normalized Delay = Total Propagation Delay/Propagation Delay Capaitance

Voltage-Controlled Delay Line

Go Voltage-Controlled Delay Line = Small Deviation Delay/VCDL Gain

Small Deviation Delay

Go Small Deviation Delay = VCDL Gain*Voltage-Controlled Delay Line

VCDL Gain

Go VCDL Gain = Small Deviation Delay/Voltage-Controlled Delay Line

Edge Rate

Go Edge Rate = (Rise Time+Fall Time)/2

Fall Time

Go Fall Time = 2*Edge Rate-Rise Time

Rise Time

Go Rise Time = 2*Edge Rate-Fall Time

Edge Rate Formula

Edge Rate = (Rise Time+Fall Time)/2
t_e = (t_r+t_f)/2

Explain Sizing Of The Inverter?

Sizing of an inverter in digital circuit design refers to determining the appropriate dimensions (width and length) of the transistors within the inverter circuit. An inverter is a fundamental building block in digital circuits, and its sizing plays a crucial role in determining various aspects of the circuit's performance, including speed, power consumption, and noise margins.

How to Calculate Edge Rate?

Edge Rate calculator uses Edge Rate = (Rise Time+Fall Time)/2 to calculate the Edge Rate, The Edge rate formula refers to the rate of change of voltage or current at the transition point of a digital signal. It is a measure of how quickly a signal changes from one logic level to another. In other words, edge rate quantifies the steepness or slope of the transition in a digital signal. Edge Rate is denoted by t_e symbol.

How to calculate Edge Rate using this online calculator? To use this online calculator for Edge Rate, enter Rise Time (t_r) & Fall Time (t_f) and hit the calculate button. Here is how the Edge Rate calculation can be explained with given input values -> 4.7E+9 = (2.8E-09+9.2E-09)/2.

FAQ

What is Edge Rate?

The Edge rate formula refers to the rate of change of voltage or current at the transition point of a digital signal. It is a measure of how quickly a signal changes from one logic level to another. In other words, edge rate quantifies the steepness or slope of the transition in a digital signal and is represented as t_e = (t_r+t_f)/2 or Edge Rate = (Rise Time+Fall Time)/2. Rise Time is defined as the time required for a pulse to rise from 10 per cent to 90 per cent of its steady value in CMOS devices & Fall time is time for a waveform to fall from 80% to 20% of its steady-state value.

How to calculate Edge Rate?

The Edge rate formula refers to the rate of change of voltage or current at the transition point of a digital signal. It is a measure of how quickly a signal changes from one logic level to another. In other words, edge rate quantifies the steepness or slope of the transition in a digital signal is calculated using Edge Rate = (Rise Time+Fall Time)/2. To calculate Edge Rate, you need Rise Time (t_r) & Fall Time (t_f). With our tool, you need to enter the respective value for Rise Time & Fall Time 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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