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
Rop = (gm*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
Rop = (gm*R02)*R01 --> (0.00025*910)*2450
Evaluating ... ...
Rop = 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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Birsa Institute of Technology (BIT), Sindri
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Cascode Configuration Calculators

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Upwards Resistance of Cascode Differential Half-Circuit
​ LaTeX ​ Go Upwards Resistance of Cascode Differential = (Transconductance*Equivalent Resistance from Secondary)*Equivalent Resistance from Primary
Voltage Gain of Cascode Differential Amplifier given Transconductance
​ LaTeX ​ Go Voltage Gain = Differential Output Signal/Differential Input Voltage

Upwards Resistance of Cascode Differential Half-Circuit Formula

​LaTeX ​Go
Upwards Resistance of Cascode Differential = (Transconductance*Equivalent Resistance from Secondary)*Equivalent Resistance from Primary
Rop = (gm*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 (Vin+ + Vin)/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 Rop 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 (gm), 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 Rop = (gm*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 (gm), 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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