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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+Vov+Vgs-VL
Vcmr - Common-Mode Range?Vt - Threshold Voltage?Vov - Effective Voltage?Vgs - Voltage between Gate and Source?VL - Load Voltage?

Minimum Input Common-Mode Range of MOS Differential Amplifier Example

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

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

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

3.36Edit=19.5Edit+2.5Edit+4Edit-22.64Edit
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Minimum Input Common-Mode Range of MOS Differential Amplifier Solution

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

FIRST Step Consider the formula
Vcmr=Vt+Vov+Vgs-VL
Next Step Substitute values of Variables
∴ Vcmr=19.5V+2.5V+4V-22.64V
Next Step Prepare to Evaluate
∴ Vcmr=19.5+2.5+4-22.64
LAST Step Evaluate
∴Vcmr=3.36V

Minimum 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
Effective Voltage
Effective voltage or overdrive voltage is excess of voltage across oxide over thermal voltage is termed.
Symbol: Vov
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.
Formulas to find Effective VoltageOpen Variable
Voltage between Gate and Source
The voltage between gate and source is the voltage that falls across the gate-source terminal of the transistor.
Symbol: Vgs
Measurement: Electric PotentialUnit: V
Note: Value should be greater than 0.
Formulas to find Voltage between Gate and SourceOpen 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

Other Formulas to find Common-Mode Range

​Go Maximum Input Common-Mode Range of MOS Differential Amplifier
Vcmr=Vt+VL-(12⋅RL)

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 Minimum Input Common-Mode Range of MOS Differential Amplifier?

Minimum Input Common-Mode Range of MOS Differential Amplifier evaluator uses Common-Mode Range = Threshold Voltage+Effective Voltage+Voltage between Gate and Source-Load Voltage to evaluate the Common-Mode Range, Minimum 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 Minimum Input Common-Mode Range of MOS Differential Amplifier using this online evaluator? To use this online evaluator for Minimum Input Common-Mode Range of MOS Differential Amplifier, enter Threshold Voltage (Vt), Effective Voltage (Vov), Voltage between Gate and Source (Vgs) & Load Voltage (VL) and hit the calculate button.

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

What is the formula to find Minimum Input Common-Mode Range of MOS Differential Amplifier?
The formula of Minimum Input Common-Mode Range of MOS Differential Amplifier is expressed as Common-Mode Range = Threshold Voltage+Effective Voltage+Voltage between Gate and Source-Load Voltage. Here is an example- 3.36 = 19.5+2.5+4-22.64.
How to calculate Minimum Input Common-Mode Range of MOS Differential Amplifier?
With Threshold Voltage (Vt), Effective Voltage (Vov), Voltage between Gate and Source (Vgs) & Load Voltage (VL) we can find Minimum Input Common-Mode Range of MOS Differential Amplifier using the formula - Common-Mode Range = Threshold Voltage+Effective Voltage+Voltage between Gate and Source-Load Voltage.
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+Load Voltage-(1/2*Load Resistance)OpenImg
Can the Minimum Input Common-Mode Range of MOS Differential Amplifier be negative?
No, the Minimum Input Common-Mode Range of MOS Differential Amplifier, measured in Electric Potential cannot be negative.
Which unit is used to measure Minimum Input Common-Mode Range of MOS Differential Amplifier?
Minimum 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 Minimum Input Common-Mode Range of MOS Differential Amplifier can be measured.
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