Common-Mode Rejection Ratio of MOS Controlled Source Transistor Calculator

✖Differential gain db is a measure of the amplification of a circuit for differential signals, which are signals that appear on the two input terminals with opposite polarities.ⓘ Differential Gain DB [A_d]			+10% -10%
✖Common mode gain dB refers to the degree to which an amplifier or electronic circuit amplifies a signal that is common to both the input and output terminals of the circuit.ⓘ Common Mode Gain DB [A_cm(db)]			+10% -10%

✖Common Mode Rejection Ratio in DB is a measure of the ability of an electronic circuit to reject common-mode signals, which are signals that appear on both input terminals of the circuit.ⓘ Common-Mode Rejection Ratio of MOS Controlled Source Transistor [CMRR_db]

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Common-Mode Rejection Ratio of MOS Controlled Source Transistor Solution

STEP 0: Pre-Calculation Summary

Formula Used

Common Mode Rejection Ratio in DB = (modulus(Differential Gain DB))/(modulus(Common Mode Gain DB))
CMRR_db = (modulus(A_d))/(modulus(A_cm(db)))
This formula uses 1 Functions, 3 Variables

Functions Used

modulus - Modulus of a number is the remainder when that number is divided by another number., modulus

Variables Used

Common Mode Rejection Ratio in DB - (Measured in Decibel) - Common Mode Rejection Ratio in DB is a measure of the ability of an electronic circuit to reject common-mode signals, which are signals that appear on both input terminals of the circuit.
Differential Gain DB - (Measured in Decibel) - Differential gain db is a measure of the amplification of a circuit for differential signals, which are signals that appear on the two input terminals with opposite polarities.
Common Mode Gain DB - (Measured in Decibel) - Common mode gain dB refers to the degree to which an amplifier or electronic circuit amplifies a signal that is common to both the input and output terminals of the circuit.

STEP 1: Convert Input(s) to Base Unit

Differential Gain DB: 4.35 Decibel --> 4.35 Decibel No Conversion Required
Common Mode Gain DB: 0.23 Decibel --> 0.23 Decibel No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

CMRR_db = (modulus(A_d))/(modulus(A_cm(db))) --> (modulus(4.35))/(modulus(0.23))

Evaluating ... ...

CMRR_db = 18.9130434782609

STEP 3: Convert Result to Output's Unit

18.9130434782609 Decibel --> No Conversion Required

FINAL ANSWER

18.9130434782609 ≈ 18.91304 Decibel <-- Common Mode Rejection Ratio in DB

(Calculation completed in 00.007 seconds)

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< Common Mode Rejection Ratio (CMRR) Calculators

Common-Mode Rejection Ratio of MOS with Current-Mirror Load

LaTeX Go Common Mode Rejection Ratio = Transconductance*(1/(1/Primary Winding Resistance in Secondary+1/Secondary Winding Resistance in Primary))*(2*Change in Transconductance*Finite Output Resistance)

Common-Mode Rejection Ratio of MOSFET given Resistance

LaTeX Go Common Mode Rejection Ratio = (2*Transconductance*Output Resistance)/(Change in Drain Resistance/Drain Resistance)

Common-Mode Rejection Ratio of MOS with Current-Mirror Load when Resistance at Drains are Equal

LaTeX Go Common Mode Rejection Ratio = (Transconductance*Finite Output Resistance)*(Transconductance*Source Resistance)

Common-Mode Signal of MOSFET given Resistance

LaTeX Go Common Mode Input Signal = (2*Output Resistance*Output Voltage)/Load Resistance

Common-Mode Rejection Ratio of MOS Controlled Source Transistor Formula

LaTeX Go

Common Mode Rejection Ratio in DB = (modulus(Differential Gain DB))/(modulus(Common Mode Gain DB))
CMRR_db = (modulus(A_d))/(modulus(A_cm(db)))

What is current controlled current source?

An ideal dependent current-controlled current source, CCCS, maintains an output current that is proportional to a controlling input current. Then the output current “depends” on the value of the input current, again making it a dependent current source.

How to Calculate Common-Mode Rejection Ratio of MOS Controlled Source Transistor?

Common-Mode Rejection Ratio of MOS Controlled Source Transistor calculator uses Common Mode Rejection Ratio in DB = (modulus(Differential Gain DB))/(modulus(Common Mode Gain DB)) to calculate the Common Mode Rejection Ratio in DB, Common-mode rejection ratio of MOS controlled source transistor formula is defined as metric used to quantify ability of device to reject common-mode signals, i.e. those that appear simultaneously and in phase on both inputs. Common Mode Rejection Ratio in DB is denoted by CMRR_db symbol.

How to calculate Common-Mode Rejection Ratio of MOS Controlled Source Transistor using this online calculator? To use this online calculator for Common-Mode Rejection Ratio of MOS Controlled Source Transistor, enter Differential Gain DB (A_d) & Common Mode Gain DB (A_cm(db)) and hit the calculate button. Here is how the Common-Mode Rejection Ratio of MOS Controlled Source Transistor calculation can be explained with given input values -> 18.91304 = (modulus(4.35))/(modulus(0.23)).

FAQ

What is Common-Mode Rejection Ratio of MOS Controlled Source Transistor?

Common-mode rejection ratio of MOS controlled source transistor formula is defined as metric used to quantify ability of device to reject common-mode signals, i.e. those that appear simultaneously and in phase on both inputs and is represented as CMRR_db = (modulus(A_d))/(modulus(A_cm(db))) or Common Mode Rejection Ratio in DB = (modulus(Differential Gain DB))/(modulus(Common Mode Gain DB)). Differential gain db is a measure of the amplification of a circuit for differential signals, which are signals that appear on the two input terminals with opposite polarities & Common mode gain dB refers to the degree to which an amplifier or electronic circuit amplifies a signal that is common to both the input and output terminals of the circuit.

How to calculate Common-Mode Rejection Ratio of MOS Controlled Source Transistor?

Common-mode rejection ratio of MOS controlled source transistor formula is defined as metric used to quantify ability of device to reject common-mode signals, i.e. those that appear simultaneously and in phase on both inputs is calculated using Common Mode Rejection Ratio in DB = (modulus(Differential Gain DB))/(modulus(Common Mode Gain DB)). To calculate Common-Mode Rejection Ratio of MOS Controlled Source Transistor, you need Differential Gain DB (A_d) & Common Mode Gain DB (A_cm(db)). With our tool, you need to enter the respective value for Differential Gain DB & Common Mode Gain DB 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 Rejection Ratio in DB?

In this formula, Common Mode Rejection Ratio in DB uses Differential Gain DB & Common Mode Gain DB. We can use 1 other way(s) to calculate the same, which is/are as follows -

Common Mode Rejection Ratio in DB = modulus(20*log10((Voltage Gain)/(Common Mode Gain DB)))

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