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Minimum Input Voltage CMOS Formula

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Minimum input voltage is the lowest voltage level that can be applied to the input terminal of a device or circuit while still ensuring proper operation and meeting specified performance criteria. Check FAQs

V IH = \frac{V DD + (V T0,p) + K r \cdot (2 \cdot V out + V T0,n)}{1 + K r}

V_IH - Minimum Input Voltage?V_DD - Supply Voltage?V_T0,p - Threshold Voltage of PMOS Without Body Bias?K_r - Transconductance Ratio?V_out - Output Voltage?V_T0,n - Threshold Voltage of NMOS Without Body Bias?

Minimum Input Voltage CMOS Example

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Here is how the Minimum Input Voltage CMOS equation looks like with Values.

Here is how the Minimum Input Voltage CMOS equation looks like with Units.

Here is how the Minimum Input Voltage CMOS equation looks like.

1.5571 = \frac{3.3 + (-0.7) + 2.5 \cdot (2 \cdot 0.27 + 0.6)}{1 + 2.5}

1.5571V = \frac{3.3V + (-0.7V) + 2.5 \cdot (2 \cdot 0.27V + 0.6V)}{1 + 2.5}

1.5571 = \frac{3.3 + (-0.7) + 2.5 \cdot (2 \cdot 0.27 + 0.6)}{1 + 2.5}

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Minimum Input Voltage CMOS Solution

Follow our step by step solution on how to calculate Minimum Input Voltage CMOS?

FIRST Step Consider the formula

V IH = \frac{V DD + (V T0,p) + K r \cdot (2 \cdot V out + V T0,n)}{1 + K r}

Next Step Substitute values of Variables

∴

V IH = \frac{3.3V + (-0.7V) + 2.5 \cdot (2 \cdot 0.27V + 0.6V)}{1 + 2.5}

Next Step Prepare to Evaluate

∴

V IH = \frac{3.3 + (-0.7) + 2.5 \cdot (2 \cdot 0.27 + 0.6)}{1 + 2.5}

Next Step Evaluate

∴

V IH = 1.55714285714286V

LAST Step Rounding Answer

∴

V IH = 1.5571V

Minimum Input Voltage CMOS Formula Elements

Variables

Minimum Input Voltage

Minimum input voltage is the lowest voltage level that can be applied to the input terminal of a device or circuit while still ensuring proper operation and meeting specified performance criteria.

Symbol: V_IH

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Minimum Input Voltage

Supply Voltage

Supply voltage refers to the voltage level provided by a power source to an electrical circuit or device, serving as the potential difference for current flow and operation.

Symbol: V_DD

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Supply Voltage

Threshold Voltage of PMOS Without Body Bias

Threshold Voltage of PMOS Without Body Bias CMOS is defined as the threshold voltage of the PMOS when substrate terminal is at ground (0) voltage.

Symbol: V_T0,p

Measurement: Electric PotentialUnit: V

Note: Value should be between -10 to 0.

Formulas to find Threshold Voltage of PMOS Without Body Bias

Transconductance Ratio

Transconductance ratio is the ratio of the transconductance of one device (e.g., transistor) to another, often used to compare or characterize their performance or behavior in circuits.

Symbol: K_r

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Transconductance Ratio

Output Voltage

Output voltage refers to the electrical potential difference or level produced by a device or circuit at its output terminal, reflecting the signal or power provided by the system.

Symbol: V_out

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Output Voltage

Threshold Voltage of NMOS Without Body Bias

Threshold voltage of NMOS without body bias is the minimum input voltage required to switch an NMOS transistor when no additional bias voltage is applied to the substrate (body).

Symbol: V_T0,n

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Threshold Voltage of NMOS Without Body Bias

Other formulas in CMOS Inverters category

Go Noise Margin for High Signal CMOS

N MH = V OH - V IH

Go Maximum Input Voltage for Symmetric CMOS

V IL(sym) = \frac{3 \cdot V DD + 2 \cdot V T0,n}{8}

Go Threshold Voltage CMOS

V th = \frac{V T0,n + \sqrt{\frac{1}{K r}} \cdot (V DD + (V T0,p))}{1 + \sqrt{\frac{1}{K r}}}

Go Maximum Input Voltage CMOS

V IL = \frac{2 \cdot V output + (V T0,p) - V DD + K r \cdot V T0,n}{1 + K r}

How to Evaluate Minimum Input Voltage CMOS?

Minimum Input Voltage CMOS evaluator uses Minimum Input Voltage = (Supply Voltage+(Threshold Voltage of PMOS Without Body Bias)+Transconductance Ratio*(2*Output Voltage+Threshold Voltage of NMOS Without Body Bias))/(1+Transconductance Ratio) to evaluate the Minimum Input Voltage, Minimum Input Voltage CMOS is the lowest voltage level that can be applied to the input terminal of a CMOS device while ensuring proper functionality and reliable operation, typically defined to maintain signal integrity and avoid triggering unintended circuit states. Minimum Input Voltage is denoted by V_IH symbol.

How to evaluate Minimum Input Voltage CMOS using this online evaluator? To use this online evaluator for Minimum Input Voltage CMOS, enter Supply Voltage (V_DD), Threshold Voltage of PMOS Without Body Bias (V_T0,p), Transconductance Ratio (K_r), Output Voltage (V_out) & Threshold Voltage of NMOS Without Body Bias (V_T0,n) and hit the calculate button.

FAQs on Minimum Input Voltage CMOS

What is the formula to find Minimum Input Voltage CMOS?

The formula of Minimum Input Voltage CMOS is expressed as Minimum Input Voltage = (Supply Voltage+(Threshold Voltage of PMOS Without Body Bias)+Transconductance Ratio*(2*Output Voltage+Threshold Voltage of NMOS Without Body Bias))/(1+Transconductance Ratio). Here is an example- 1.557143 = (3.3+((-0.7))+2.5*(2*0.27+0.6))/(1+2.5).

How to calculate Minimum Input Voltage CMOS?

With Supply Voltage (V_DD), Threshold Voltage of PMOS Without Body Bias (V_T0,p), Transconductance Ratio (K_r), Output Voltage (V_out) & Threshold Voltage of NMOS Without Body Bias (V_T0,n) we can find Minimum Input Voltage CMOS using the formula - Minimum Input Voltage = (Supply Voltage+(Threshold Voltage of PMOS Without Body Bias)+Transconductance Ratio*(2*Output Voltage+Threshold Voltage of NMOS Without Body Bias))/(1+Transconductance Ratio).

Can the Minimum Input Voltage CMOS be negative?

No, the Minimum Input Voltage CMOS, measured in Electric Potential cannot be negative.

Which unit is used to measure Minimum Input Voltage CMOS?

Minimum Input Voltage CMOS 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 Voltage CMOS can be measured.

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Minimum Input Voltage CMOS Formula

Minimum Input Voltage CMOS Example

Minimum Input Voltage CMOS Solution

Minimum Input Voltage CMOS Formula Elements

Other formulas in CMOS Inverters category

How to Evaluate Minimum Input Voltage CMOS?

FAQs on Minimum Input Voltage CMOS

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