FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Common-Mode Gain of Controlled Source Transistor Formula

Fx Copy

LaTeX Copy

Common Mode Gain is typically much smaller than the differential gain. Acm is the gain given to a voltage that appears on both input terminals with respect to the ground. Check FAQs

A cm = 20 \cdot \log 10 (\frac{V ss}{V is})

A_cm - Common Mode Gain?V_ss - Small Signal?V_is - Differential Input Signal?

Common-Mode Gain of Controlled Source Transistor Example

With values

With units

Only example

Here is how the Common-Mode Gain of Controlled Source Transistor equation looks like with Values.

Here is how the Common-Mode Gain of Controlled Source Transistor equation looks like with Units.

Here is how the Common-Mode Gain of Controlled Source Transistor equation looks like.

6.2513 = 20 \cdot \log 10 (\frac{7.25}{3.53})

6.2513dB = 20 \cdot \log 10 (\frac{7.25V}{3.53V})

6.2513 = 20 \cdot \log 10 (\frac{7.25}{3.53})

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Electronics » Category

Amplifiers » fx Common-Mode Gain of Controlled Source Transistor

Common-Mode Gain of Controlled Source Transistor Solution

Follow our step by step solution on how to calculate Common-Mode Gain of Controlled Source Transistor?

FIRST Step Consider the formula

A cm = 20 \cdot \log 10 (\frac{V ss}{V is})

Next Step Substitute values of Variables

∴

A cm = 20 \cdot \log 10 (\frac{7.25V}{3.53V})

Next Step Prepare to Evaluate

∴

A cm = 20 \cdot \log 10 (\frac{7.25}{3.53})

Next Step Evaluate

∴

A cm = 6.25126602366342dB

LAST Step Rounding Answer

∴

A cm = 6.2513dB

Common-Mode Gain of Controlled Source Transistor Formula Elements

Variables

Functions

Common Mode Gain

Common Mode Gain is typically much smaller than the differential gain. Acm is the gain given to a voltage that appears on both input terminals with respect to the ground.

Symbol: A_cm

Measurement: NoiseUnit: dB

Note: Value should be greater than 0.

Formulas to find Common Mode Gain

Small Signal

A small signal is an AC signal (more technically, a signal having zero average value) superimposed on a bias signal (or superimposed on a DC constant signal).

Symbol: V_ss

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Small Signal

Differential Input Signal

The Differential Input Signal is simply the difference between the two input signals v1 and v2.

Symbol: V_is

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Differential Input Signal

log10

The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function.

Syntax: log10(Number)

Other formulas in Gain category

Go Common-Mode Current Gain of Controlled Source Transistor

A cmi = - (\frac{1}{2 \cdot g m \cdot R o})

How to Evaluate Common-Mode Gain of Controlled Source Transistor?

Common-Mode Gain of Controlled Source Transistor evaluator uses Common Mode Gain = 20*log10(Small Signal/Differential Input Signal) to evaluate the Common Mode Gain, The Common-mode gain of controlled source transistor formula is defined as the amplification given to signals that appear on both inputs relative to the common (typically ground). You will recall from a previous discussion that a differential amplifier is designed to amplify the difference between the two voltages applied to its inputs. Common Mode Gain is denoted by A_cm symbol.

How to evaluate Common-Mode Gain of Controlled Source Transistor using this online evaluator? To use this online evaluator for Common-Mode Gain of Controlled Source Transistor, enter Small Signal (V_ss) & Differential Input Signal (V_is) and hit the calculate button.

FAQs on Common-Mode Gain of Controlled Source Transistor

What is the formula to find Common-Mode Gain of Controlled Source Transistor?

The formula of Common-Mode Gain of Controlled Source Transistor is expressed as Common Mode Gain = 20*log10(Small Signal/Differential Input Signal). Here is an example- 6.251266 = 20*log10(7.25/3.53).

How to calculate Common-Mode Gain of Controlled Source Transistor?

With Small Signal (V_ss) & Differential Input Signal (V_is) we can find Common-Mode Gain of Controlled Source Transistor using the formula - Common Mode Gain = 20*log10(Small Signal/Differential Input Signal). This formula also uses Common Logarithm (log10) function(s).

Can the Common-Mode Gain of Controlled Source Transistor be negative?

No, the Common-Mode Gain of Controlled Source Transistor, measured in Noise cannot be negative.

Which unit is used to measure Common-Mode Gain of Controlled Source Transistor?

Common-Mode Gain of Controlled Source Transistor is usually measured using the Decibel[dB] for Noise. Neper[dB], MilliDecibel[dB] are the few other units in which Common-Mode Gain of Controlled Source Transistor can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Common-Mode Gain of Controlled Source Transistor Formula

Common-Mode Gain of Controlled Source Transistor Example

Common-Mode Gain of Controlled Source Transistor Solution

Common-Mode Gain of Controlled Source Transistor Formula Elements

Other formulas in Gain category

How to Evaluate Common-Mode Gain of Controlled Source Transistor?

FAQs on Common-Mode Gain of Controlled Source Transistor

Variable Name