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The common-mode range is for signal processing devices with differential inputs, such as an op-amp. Check FAQs
Vcmr=Vt+VL-(12⋅RL)
Vcmr - Common-Mode Range?Vt - Threshold Voltage?VL - Load Voltage?RL - Load Resistance?

Maximum Input Common-Mode Range of MOS Differential Amplifier Example

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Here is how the Maximum Input Common-Mode Range of MOS Differential Amplifier equation looks like with Values.

Here is how the Maximum Input Common-Mode Range of MOS Differential Amplifier equation looks like with Units.

Here is how the Maximum Input Common-Mode Range of MOS Differential Amplifier equation looks like.

3.34Edit=19.5Edit+22.64Edit-(12⋅0.0776Edit)
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Maximum Input Common-Mode Range of MOS Differential Amplifier Solution

Follow our step by step solution on how to calculate Maximum Input Common-Mode Range of MOS Differential Amplifier?

FIRST Step Consider the formula
Vcmr=Vt+VL-(12⋅RL)
Next Step Substitute values of Variables
∴ Vcmr=19.5V+22.64V-(12⋅0.0776kΩ)
Next Step Convert Units
∴ Vcmr=19.5V+22.64V-(12⋅77.6Ω)
Next Step Prepare to Evaluate
∴ Vcmr=19.5+22.64-(12⋅77.6)
LAST Step Evaluate
∴Vcmr=3.34V

Maximum Input Common-Mode Range of MOS Differential Amplifier Formula Elements

Variables
Common-Mode Range
The common-mode range is for signal processing devices with differential inputs, such as an op-amp.
Symbol: Vcmr
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.
Formulas to find Common-Mode RangeOpen Variable
Threshold Voltage
Threshold voltage of transistor is the minimum gate to source voltage that is needed to create a conducting path between the source and drain terminals.
Symbol: Vt
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.
Formulas to find Threshold VoltageOpen Variable
Load Voltage
The Load Voltage is defined as the voltage between two terminals of load.
Symbol: VL
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.
Formulas to find Load VoltageOpen Variable
Load Resistance
Load resistance of MOSFET is the effective resistance of all of the circuit elements excluding the emf source.
Symbol: RL
Measurement: Electric ResistanceUnit: kΩ
Note: Value should be greater than 0.
Formulas to find Load ResistanceOpen Variable

Other Formulas to find Common-Mode Range

​Go Minimum Input Common-Mode Range of MOS Differential Amplifier
Vcmr=Vt+Vov+Vgs-VL

Other formulas in Differential Configuration category

​Go Input Voltage of MOS Differential Amplifier on Small-Signal Operation
Vin=Vcm+(12⋅Vis)
​Go Input Offset Voltage of MOS Differential Amplifier
Vos=VoAd
​Go Input Offset Voltage of MOS Differential Amplifier when Aspect Ratio Mismatches
Vos=(Vov2)⋅(WLWL1)
​Go Input Offset Voltage of MOS Differential Amplifier given Saturation Current
Vos=Vt⋅(IscIs)

How to Evaluate Maximum Input Common-Mode Range of MOS Differential Amplifier?

Maximum Input Common-Mode Range of MOS Differential Amplifier evaluator uses Common-Mode Range = Threshold Voltage+Load Voltage-(1/2*Load Resistance) to evaluate the Common-Mode Range, maximum input common-mode range of MOS differential amplifier formula is for signal processing devices with differential inputs, such as op-amp, CMVR is range of common-mode signal for which amplifier's operation remains linear. Common-Mode Range is denoted by Vcmr symbol.

How to evaluate Maximum Input Common-Mode Range of MOS Differential Amplifier using this online evaluator? To use this online evaluator for Maximum Input Common-Mode Range of MOS Differential Amplifier, enter Threshold Voltage (Vt), Load Voltage (VL) & Load Resistance (RL) and hit the calculate button.

FAQs on Maximum Input Common-Mode Range of MOS Differential Amplifier

What is the formula to find Maximum Input Common-Mode Range of MOS Differential Amplifier?
The formula of Maximum Input Common-Mode Range of MOS Differential Amplifier is expressed as Common-Mode Range = Threshold Voltage+Load Voltage-(1/2*Load Resistance). Here is an example- 13.34 = 19.5+22.64-(1/2*77.6).
How to calculate Maximum Input Common-Mode Range of MOS Differential Amplifier?
With Threshold Voltage (Vt), Load Voltage (VL) & Load Resistance (RL) we can find Maximum Input Common-Mode Range of MOS Differential Amplifier using the formula - Common-Mode Range = Threshold Voltage+Load Voltage-(1/2*Load Resistance).
What are the other ways to Calculate Common-Mode Range?
Here are the different ways to Calculate Common-Mode Range-
  • Common-Mode Range=Threshold Voltage+Effective Voltage+Voltage between Gate and Source-Load VoltageOpenImg
Can the Maximum Input Common-Mode Range of MOS Differential Amplifier be negative?
No, the Maximum Input Common-Mode Range of MOS Differential Amplifier, measured in Electric Potential cannot be negative.
Which unit is used to measure Maximum Input Common-Mode Range of MOS Differential Amplifier?
Maximum Input Common-Mode Range of MOS Differential Amplifier is usually measured using the Volt[V] for Electric Potential. Millivolt[V], Microvolt[V], Nanovolt[V] are the few other units in which Maximum Input Common-Mode Range of MOS Differential Amplifier can be measured.
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