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Input Offset Voltage of MOS Differential Amplifier Formula

GoInput Offset Voltage of MOS Differential Amplifier when Aspect Ratio Mismatches Formula

GoInput Offset Voltage of MOS Differential Amplifier given Saturation Current Formula

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Input offset voltage is the voltage that must be applied between the two input terminals of the op-amp to obtain zero volts at the output. Check FAQs

V os = \frac{V o}{A d}

V_os - Input Offset Voltage?V_o - Output DC Offset Voltage?A_d - Differential Gain?

Input Offset Voltage of MOS Differential Amplifier Example

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Here is how the Input Offset Voltage of MOS Differential Amplifier equation looks like with Values.

Here is how the Input Offset Voltage of MOS Differential Amplifier equation looks like with Units.

Here is how the Input Offset Voltage of MOS Differential Amplifier equation looks like.

3.54 = \frac{24.78}{7}

3.54V = \frac{24.78V}{7}

3.54 = \frac{24.78}{7}

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Input Offset Voltage of MOS Differential Amplifier Solution

Follow our step by step solution on how to calculate Input Offset Voltage of MOS Differential Amplifier?

FIRST Step Consider the formula

V os = \frac{V o}{A d}

Next Step Substitute values of Variables

∴

V os = \frac{24.78V}{7}

Next Step Prepare to Evaluate

∴

V os = \frac{24.78}{7}

LAST Step Evaluate

∴

V os = 3.54V

Input Offset Voltage of MOS Differential Amplifier Formula Elements

Variables

Input Offset Voltage

Input offset voltage is the voltage that must be applied between the two input terminals of the op-amp to obtain zero volts at the output.

Symbol: V_os

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Input Offset Voltage

Output DC Offset Voltage

Output DC offset voltage between two output terminals (or the output terminal and ground for circuits with one output) when the input terminal(s) are grounded.

Symbol: V_o

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Output DC Offset Voltage

Differential Gain

Differential Gain is the gain of the amplifier when a differential input is supplied i.e. input 1 is not equal to input 2.

Symbol: A_d

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Differential Gain

Other Formulas to find Input Offset Voltage

Go Input Offset Voltage of MOS Differential Amplifier when Aspect Ratio Mismatches

V os = (\frac{V ov}{2}) \cdot (\frac{WL}{WL 1})

Go Input Offset Voltage of MOS Differential Amplifier given Saturation Current

V os = V t \cdot (\frac{I sc}{I s})

Go Total Input Offset Voltage of MOS Differential Amplifier given Saturation Current

V os = \sqrt{{(\frac{ΔR c}{R c})}^{2} + {(\frac{I sc}{I s})}^{2}}

Other formulas in Differential Configuration category

Go Maximum Input Common-Mode Range of MOS Differential Amplifier

V cmr = V t + V L - (\frac{1}{2} \cdot R L)

Go Minimum Input Common-Mode Range of MOS Differential Amplifier

V cmr = V t + V ov + V gs - V L

Go Input Voltage of MOS Differential Amplifier on Small-Signal Operation

V in = V cm + (\frac{1}{2} \cdot V is)

Go Transconductance of MOS Differential Amplifier on Small-Signal Operation

g m = \frac{I t}{V ov}

How to Evaluate Input Offset Voltage of MOS Differential Amplifier?

Input Offset Voltage of MOS Differential Amplifier evaluator uses Input Offset Voltage = Output DC Offset Voltage/Differential Gain to evaluate the Input Offset Voltage, The Input Offset Voltage of MOS Differential Amplifier formula is defined as the voltage that must be applied between the two input terminals of the op-amp to obtain zero volts at the output. Ideally, the output of the op-amp should be at zero volts when the inputs are grounded. In reality, the input terminals are at slightly different dc potentials. Input Offset Voltage is denoted by V_os symbol.

How to evaluate Input Offset Voltage of MOS Differential Amplifier using this online evaluator? To use this online evaluator for Input Offset Voltage of MOS Differential Amplifier, enter Output DC Offset Voltage (V_o) & Differential Gain (A_d) and hit the calculate button.

FAQs on Input Offset Voltage of MOS Differential Amplifier

What is the formula to find Input Offset Voltage of MOS Differential Amplifier?

The formula of Input Offset Voltage of MOS Differential Amplifier is expressed as Input Offset Voltage = Output DC Offset Voltage/Differential Gain. Here is an example- 1.857143 = 24.78/7.

How to calculate Input Offset Voltage of MOS Differential Amplifier?

With Output DC Offset Voltage (V_o) & Differential Gain (A_d) we can find Input Offset Voltage of MOS Differential Amplifier using the formula - Input Offset Voltage = Output DC Offset Voltage/Differential Gain.

What are the other ways to Calculate Input Offset Voltage?

Here are the different ways to Calculate Input Offset Voltage-

Input Offset Voltage=(Effective Voltage/2)*(Aspect Ratio/Aspect Ratio 1)
Input Offset Voltage=Threshold Voltage*(Saturation Current for DC/Saturation Current)
Input Offset Voltage=sqrt((Change in Collector Resistance/Collector Resistance)^2+(Saturation Current for DC/Saturation Current)^2)

Can the Input Offset Voltage of MOS Differential Amplifier be negative?

Yes, the Input Offset Voltage of MOS Differential Amplifier, measured in Electric Potential can be negative.

Which unit is used to measure Input Offset Voltage of MOS Differential Amplifier?

Input Offset Voltage 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 Input Offset Voltage of MOS Differential Amplifier can be measured.

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