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))
CMRRdb = (modulus(Ad))/(modulus(Acm(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
CMRRdb = (modulus(Ad))/(modulus(Acm(db))) --> (modulus(4.35))/(modulus(0.23))
Evaluating ... ...
CMRRdb = 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 00.004 seconds)

Credits

Created by Payal Priya
Birsa Institute of Technology (BIT), Sindri
Payal Priya has created this Calculator and 600+ more calculators!
Verified by Urvi Rathod
Vishwakarma Government Engineering College (VGEC), Ahmedabad
Urvi Rathod has verified this Calculator and 1900+ more calculators!

10+ Common Mode Rejection Ratio (CMRR) Calculators

Common-Mode Rejection Ratio of MOS with Current-Mirror Load
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 when Transconductance Mismatches
Go Common Mode Rejection Ratio = (2*Transconductance*Output Resistance)/(Change in Transconductance/Transconductance)
Common-Mode Rejection Ratio of MOSFET given Resistance
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
Go Common Mode Rejection Ratio = (Transconductance*Finite Output Resistance)*(Transconductance*Source Resistance)
Common-Mode Input Signal of MOSFET
Go Common Mode Input Signal = (Total Current/Transconductance)+(2*Total Current*Total Load Resistance of MOSFET)
Common-Mode Rejection Ratio of MOS Controlled Source Transistor
Go Common Mode Rejection Ratio in DB = (modulus(Differential Gain DB))/(modulus(Common Mode Gain DB))
Common-Mode Rejection Ratio of MOSFET in Decibels
Go Common Mode Rejection Ratio in DB = modulus(20*log10((Voltage Gain)/(Common Mode Gain DB)))
Common-Mode Signal of MOSFET given Output Voltage at Drain Q2
Go Drain Voltage Q1 = (2*Output Resistance*Common Mode Input Signal)/Drain Resistance
Common-Mode Signal of MOSFET given Resistance
Go Common Mode Input Signal = (2*Output Resistance*Output Voltage)/Load Resistance
Common-Mode Rejection Ratio of MOSFET
Go Common Mode Rejection Ratio = modulus((Voltage Gain)/(Common Mode Gain))

Common-Mode Rejection Ratio of MOS Controlled Source Transistor Formula

Common Mode Rejection Ratio in DB = (modulus(Differential Gain DB))/(modulus(Common Mode Gain DB))
CMRRdb = (modulus(Ad))/(modulus(Acm(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 CMRRdb 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 (Ad) & Common Mode Gain DB (Acm(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 CMRRdb = (modulus(Ad))/(modulus(Acm(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 (Ad) & Common Mode Gain DB (Acm(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)))
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!