Upwards Resistance of Cascode Differential Half-Circuit Calculator

✖Transconductance is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage.ⓘ Transconductance [g_m]			+10% -10%
✖Equivalent resistance from Secondary side is the total secondary side resistance.ⓘ Equivalent Resistance from Secondary [R₀₂]			+10% -10%
✖The Equivalent Resistance from Primary side is the total resistance of the primary side.ⓘ Equivalent Resistance from Primary [R₀₁]			+10% -10%

✖Upwards resistance of cascode differential half-circuit is the resistance produced in the bottom side of the amplifier.ⓘ Upwards Resistance of Cascode Differential Half-Circuit [R_op]

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Upwards Resistance of Cascode Differential Half-Circuit

Formula

`"R"_{"op"} = ("g"_{"m"}*"R"_{"02"})*"R"_{"01"}`

Example

`"0.557375kΩ"=("0.25mS"*"0.91kΩ")*"2.45kΩ"`

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Upwards Resistance of Cascode Differential Half-Circuit Solution

STEP 0: Pre-Calculation Summary

Formula Used

Upwards Resistance of Cascode Differential = (Transconductance*Equivalent Resistance from Secondary)*Equivalent Resistance from Primary
R_op = (g_m*R₀₂)*R₀₁
This formula uses 4 Variables

Variables Used

Upwards Resistance of Cascode Differential - (Measured in Ohm) - Upwards resistance of cascode differential half-circuit is the resistance produced in the bottom side of the amplifier.
Transconductance - (Measured in Siemens) - Transconductance is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage.
Equivalent Resistance from Secondary - (Measured in Ohm) - Equivalent resistance from Secondary side is the total secondary side resistance.
Equivalent Resistance from Primary - (Measured in Ohm) - The Equivalent Resistance from Primary side is the total resistance of the primary side.

STEP 1: Convert Input(s) to Base Unit

Transconductance: 0.25 Millisiemens --> 0.00025 Siemens (Check conversion here)
Equivalent Resistance from Secondary: 0.91 Kilohm --> 910 Ohm (Check conversion here)
Equivalent Resistance from Primary: 2.45 Kilohm --> 2450 Ohm (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_op = (g_m*R₀₂)*R₀₁ --> (0.00025*910)*2450

Evaluating ... ...

R_op = 557.375

STEP 3: Convert Result to Output's Unit

557.375 Ohm -->0.557375 Kilohm (Check conversion here)

FINAL ANSWER

0.557375 Kilohm <-- Upwards Resistance of Cascode Differential

(Calculation completed in 00.004 seconds)

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< 3 Cascode Configuration Calculators

Downwards Resistance of Cascode Differential Half Circuit

Go Downwards Resistance of Cascode Differential = (Transconductance*Equivalent Resistance from Secondary)*Resistance of Primary Winding in Secondary

Upwards Resistance of Cascode Differential Half-Circuit

Go Upwards Resistance of Cascode Differential = (Transconductance*Equivalent Resistance from Secondary)*Equivalent Resistance from Primary

Voltage Gain of Cascode Differential Amplifier given Transconductance

Go Voltage Gain = Differential Output Signal/Differential Input Voltage

Upwards Resistance of Cascode Differential Half-Circuit Formula

Upwards Resistance of Cascode Differential = (Transconductance*Equivalent Resistance from Secondary)*Equivalent Resistance from Primary
R_op = (g_m*R₀₂)*R₀₁

What is a cascode differential amplifier?

The cascode amplifier, with its variations, is a key element in the circuit designer's tool kit of useful circuits. It has advantages for increasing bandwidth and for high-voltage amplifier applications. A cascode amplifier has a high gain, moderately high input impedance, a high output impedance, and high bandwidth.

How do differential amplifiers work?

A differential amplifier multiplies the voltage difference between two inputs (Vin+ - Vin-) by some constant factor Ad, the differential gain. A differential amplifier also tends to reject the part of the input signals that are common to both inputs (V_in+ + V_in)/2 . This is referred to as the common-mode signal.

How to Calculate Upwards Resistance of Cascode Differential Half-Circuit?

Upwards Resistance of Cascode Differential Half-Circuit calculator uses Upwards Resistance of Cascode Differential = (Transconductance*Equivalent Resistance from Secondary)*Equivalent Resistance from Primary to calculate the Upwards Resistance of Cascode Differential, The Upwards resistance of cascode differential half-circuit formula is defined as product of the transconductance and the fifth and seventh resistance connected in the half-circuit. Upwards Resistance of Cascode Differential is denoted by R_op symbol.

How to calculate Upwards Resistance of Cascode Differential Half-Circuit using this online calculator? To use this online calculator for Upwards Resistance of Cascode Differential Half-Circuit, enter Transconductance (g_m), Equivalent Resistance from Secondary (R₀₂) & Equivalent Resistance from Primary (R₀₁) and hit the calculate button. Here is how the Upwards Resistance of Cascode Differential Half-Circuit calculation can be explained with given input values -> 0.000557 = (0.00025*910)*2450.

FAQ

What is Upwards Resistance of Cascode Differential Half-Circuit?

The Upwards resistance of cascode differential half-circuit formula is defined as product of the transconductance and the fifth and seventh resistance connected in the half-circuit and is represented as R_op = (g_m*R₀₂)*R₀₁ or Upwards Resistance of Cascode Differential = (Transconductance*Equivalent Resistance from Secondary)*Equivalent Resistance from Primary. Transconductance is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage, Equivalent resistance from Secondary side is the total secondary side resistance & The Equivalent Resistance from Primary side is the total resistance of the primary side.

How to calculate Upwards Resistance of Cascode Differential Half-Circuit?

The Upwards resistance of cascode differential half-circuit formula is defined as product of the transconductance and the fifth and seventh resistance connected in the half-circuit is calculated using Upwards Resistance of Cascode Differential = (Transconductance*Equivalent Resistance from Secondary)*Equivalent Resistance from Primary. To calculate Upwards Resistance of Cascode Differential Half-Circuit, you need Transconductance (g_m), Equivalent Resistance from Secondary (R₀₂) & Equivalent Resistance from Primary (R₀₁). With our tool, you need to enter the respective value for Transconductance, Equivalent Resistance from Secondary & Equivalent Resistance from Primary and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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