Common-Mode Signal of MOSFET given Resistance Solution

STEP 0: Pre-Calculation Summary
Formula Used
Common Mode Input Signal = (2*Output Resistance*Output Voltage)/Load Resistance
Vcin = (2*Rout*Vout)/RL
This formula uses 4 Variables
Variables Used
Common Mode Input Signal - (Measured in Volt) - A common mode input signal is a type of electrical signal that appears equally on both input terminals of a differential amplifier.
Output Resistance - (Measured in Ohm) - Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output.
Output Voltage - (Measured in Volt) - Output voltage is the electrical potential difference that is delivered to a load by a power supply and it plays a critical role in determining the performance and reliability of electronic systems.
Load Resistance - (Measured in Ohm) - Load resistance is the external resistance connected between the drain terminal of the MOSFET and the power supply voltage.
STEP 1: Convert Input(s) to Base Unit
Output Resistance: 4.5 Kilohm --> 4500 Ohm (Check conversion here)
Output Voltage: 4.2 Volt --> 4.2 Volt No Conversion Required
Load Resistance: 0.28 Kilohm --> 280 Ohm (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Vcin = (2*Rout*Vout)/RL --> (2*4500*4.2)/280
Evaluating ... ...
Vcin = 135
STEP 3: Convert Result to Output's Unit
135 Volt --> No Conversion Required
FINAL ANSWER
135 Volt <-- Common Mode Input Signal
(Calculation completed in 00.004 seconds)

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Birsa Institute of Technology (BIT), Sindri
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Common-Mode Signal of MOSFET given Resistance Formula

Common Mode Input Signal = (2*Output Resistance*Output Voltage)/Load Resistance
Vcin = (2*Rout*Vout)/RL

What does common mode rejection do?

Common-mode rejection is the ability of the differential amplifier (which sits between the oscilloscope and probes as a signal-conditioning preamp) to eliminate the common-mode voltage from the output. But as signal frequencies rise, CMRR deteriorates.

How to Calculate Common-Mode Signal of MOSFET given Resistance?

Common-Mode Signal of MOSFET given Resistance calculator uses Common Mode Input Signal = (2*Output Resistance*Output Voltage)/Load Resistance to calculate the Common Mode Input Signal, The Common-mode signal of MOSFET given resistance formula is defined as the voltage common to both input terminals of an electrical device. when referenced to the local common or ground, a common-mode signal appears on both lines of a two-wire cable, in-phase and with equal amplitudes. Common Mode Input Signal is denoted by Vcin symbol.

How to calculate Common-Mode Signal of MOSFET given Resistance using this online calculator? To use this online calculator for Common-Mode Signal of MOSFET given Resistance, enter Output Resistance (Rout), Output Voltage (Vout) & Load Resistance (RL) and hit the calculate button. Here is how the Common-Mode Signal of MOSFET given Resistance calculation can be explained with given input values -> 135 = (2*4500*4.2)/280.

FAQ

What is Common-Mode Signal of MOSFET given Resistance?
The Common-mode signal of MOSFET given resistance formula is defined as the voltage common to both input terminals of an electrical device. when referenced to the local common or ground, a common-mode signal appears on both lines of a two-wire cable, in-phase and with equal amplitudes and is represented as Vcin = (2*Rout*Vout)/RL or Common Mode Input Signal = (2*Output Resistance*Output Voltage)/Load Resistance. Output resistance refers to the resistance of an electronic circuit to the flow of current when a load is connected to its output, Output voltage is the electrical potential difference that is delivered to a load by a power supply and it plays a critical role in determining the performance and reliability of electronic systems & Load resistance is the external resistance connected between the drain terminal of the MOSFET and the power supply voltage.
How to calculate Common-Mode Signal of MOSFET given Resistance?
The Common-mode signal of MOSFET given resistance formula is defined as the voltage common to both input terminals of an electrical device. when referenced to the local common or ground, a common-mode signal appears on both lines of a two-wire cable, in-phase and with equal amplitudes is calculated using Common Mode Input Signal = (2*Output Resistance*Output Voltage)/Load Resistance. To calculate Common-Mode Signal of MOSFET given Resistance, you need Output Resistance (Rout), Output Voltage (Vout) & Load Resistance (RL). With our tool, you need to enter the respective value for Output Resistance, Output Voltage & Load Resistance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Common Mode Input Signal?
In this formula, Common Mode Input Signal uses Output Resistance, Output Voltage & Load Resistance. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Common Mode Input Signal = (Total Current/Transconductance)+(2*Total Current*Total Load Resistance of MOSFET)
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