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Edge Rate Formula

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Edge rate is defined as the ratio of rise time to the fall time. Check FAQs

t e = \frac{t r + t f}{2}

t_e - Edge Rate?t_r - Rise Time?t_f - Fall Time?

Edge Rate Example

With values

With units

Only example

Here is how the Edge Rate equation looks like with Values.

Here is how the Edge Rate equation looks like with Units.

Here is how the Edge Rate equation looks like.

6 = \frac{2.8 + 9.2}{2}

6ns = \frac{2.8ns + 9.2ns}{2}

6 = \frac{2.8 + 9.2}{2}

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Edge Rate Solution

Follow our step by step solution on how to calculate Edge Rate?

FIRST Step Consider the formula

t e = \frac{t r + t f}{2}

Next Step Substitute values of Variables

∴

t e = \frac{2.8ns + 9.2ns}{2}

Next Step Convert Units

∴

t e = \frac{2.8E-9s + 9.2E-9s}{2}

Next Step Prepare to Evaluate

∴

t e = \frac{2.8E-9 + 9.2E-9}{2}

Next Step Evaluate

∴

t e = 6E-09s

LAST Step Convert to Output's Unit

∴

t e = 6ns

Edge Rate Formula Elements

Variables

Edge Rate

Edge rate is defined as the ratio of rise time to the fall time.

Symbol: t_e

Measurement: TimeUnit: ns

Note: Value should be greater than 0.

Formulas to find Edge Rate

Rise Time

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.

Symbol: t_r

Measurement: TimeUnit: ns

Note: Value should be greater than 0.

Formulas to find Rise Time

Fall Time

Fall time is time for a waveform to fall from 80% to 20% of its steady-state value.

Symbol: t_f

Measurement: TimeUnit: ns

Note: Value should be greater than 0.

Formulas to find Fall Time

Other formulas in CMOS Delay Characteristics category

Go Fall Time

t f = 2 \cdot t e - t r

Go Rise Time

t r = 2 \cdot t e - t f

Go Normalized Delay

d = \frac{t pd}{t c}

Go Propagation Delay

t pd = d \cdot t c

How to Evaluate Edge Rate?

Edge Rate evaluator uses Edge Rate = (Rise Time+Fall Time)/2 to evaluate 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 evaluate Edge Rate using this online evaluator? To use this online evaluator for Edge Rate, enter Rise Time (t_r) & Fall Time (t_f) and hit the calculate button.

FAQs on Edge Rate

What is the formula to find Edge Rate?

The formula of Edge Rate is expressed as Edge Rate = (Rise Time+Fall Time)/2. Here is an example- 4.7E+9 = (2.8E-09+9.2E-09)/2.

How to calculate Edge Rate?

With Rise Time (t_r) & Fall Time (t_f) we can find Edge Rate using the formula - Edge Rate = (Rise Time+Fall Time)/2.

Can the Edge Rate be negative?

No, the Edge Rate, measured in Time cannot be negative.

Which unit is used to measure Edge Rate?

Edge Rate is usually measured using the Nanosecond[ns] for Time. Second[ns], Millisecond[ns], Microsecond[ns] are the few other units in which Edge Rate can be measured.

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Edge Rate Formula

Edge Rate Example

Edge Rate Solution

Edge Rate Formula Elements

Other formulas in CMOS Delay Characteristics category

How to Evaluate Edge Rate?

FAQs on Edge Rate

Variable Name