Negative Voltage Gain of Cascode Amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground)
Avn = -(gmp*Rdg)
This formula uses 3 Variables
Variables Used
Negative Voltage Gain - Negative Voltage Gain refers to the situation where the output voltage of a circuit is lower than the input voltage.
MOSFET Primary Transconductance - (Measured in Siemens) - MOSFET 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.
Resistance between Drain and Ground - (Measured in Ohm) - Resistance between Drain and Ground is the resistance that is from drain terminal of first transistor and ground .
STEP 1: Convert Input(s) to Base Unit
MOSFET Primary Transconductance: 19.77 Millisiemens --> 0.01977 Siemens (Check conversion here)
Resistance between Drain and Ground: 0.24 Kilohm --> 240 Ohm (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Avn = -(gmp*Rdg) --> -(0.01977*240)
Evaluating ... ...
Avn = -4.7448
STEP 3: Convert Result to Output's Unit
-4.7448 --> No Conversion Required
FINAL ANSWER
-4.7448 <-- Negative Voltage Gain
(Calculation completed in 00.004 seconds)

Credits

Created by Payal Priya
Birsa Institute of Technology (BIT), Sindri
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National Institute Of Technology (NIT), Hamirpur
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5 Cascode Ampifier Calculators

Open Circuit Bipolar Cascode Voltage Gain
Go Bipolar Cascode Voltage Gain = -MOSFET Primary Transconductance*(MOSFET Secondary Transconductance*Finite Output Resistance)*(1/Finite Output Resistance of Transistor 1+1/Small Signal Input Resistance)^-1
Drain Resistance of Cascode Amplifier
Go Drain Resistance = (Output Voltage Gain/(MOSFET Primary Transconductance^2*Finite Output Resistance))
Output voltage gain of MOS Cascode Amplifier
Go Output Voltage Gain = -MOSFET Primary Transconductance^2*Finite Output Resistance*Drain Resistance
Equivalent Resistance of Cascode Amplifier
Go Resistance between Drain and Ground = (1/Finite Output Resistance of Transistor 1+1/Input Resistance)^-1
Negative Voltage Gain of Cascode Amplifier
Go Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground)

15 Multi Stage Transistor Amplifiers Calculators

Open Circuit Bipolar Cascode Voltage Gain
Go Bipolar Cascode Voltage Gain = -MOSFET Primary Transconductance*(MOSFET Secondary Transconductance*Finite Output Resistance)*(1/Finite Output Resistance of Transistor 1+1/Small Signal Input Resistance)^-1
Output Resistance of Emitter Follower
Go Finite Resistance = (1/Load Resistance+1/Small Signal Voltage+1/Emitter Resistance)+(1/Base Impedance+1/Signal Resistance)/(Collector Base Current Gain+1)
Drain Resistance of Cascode Amplifier
Go Drain Resistance = (Output Voltage Gain/(MOSFET Primary Transconductance^2*Finite Output Resistance))
Output voltage gain of MOS Cascode Amplifier
Go Output Voltage Gain = -MOSFET Primary Transconductance^2*Finite Output Resistance*Drain Resistance
Collector Current in Active Region when Transistor Acts as Amplifier
Go Collector Current = Saturation Current*e^(Voltage across Base Emitter Junction/Threshold Voltage)
Saturation Current of Emitter Follower
Go Saturation Current = Collector Current/e^(Voltage across Base Emitter Junction/Threshold Voltage)
Equivalent Resistance of Cascode Amplifier
Go Resistance between Drain and Ground = (1/Finite Output Resistance of Transistor 1+1/Input Resistance)^-1
Negative Voltage Gain of Cascode Amplifier
Go Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground)
Input Resistance of Emitter Follower
Go Input Resistance = 1/(1/Signal Resistance in Base+1/Base Resistance)
Base Resistance across Emitter follower Junction
Go Base Resistance = High Frequency Constant*Emitter Resistance
Total Emitter Resistance of Emitter Follower
Go Emitter Resistance = Base Resistance/High Frequency Constant
Output Resistance of Transistor at Intrinsic Gain
Go Finite Output Resistance = Early Voltage/Collector Current
Collector Current of Emitter Follower Transistor
Go Collector Current = Early Voltage/Finite Output Resistance
Input Resistance of Transistor Amplifier
Go Input Resistance = Amplifier Input/Input Current
Input Voltage of Emitter Follower
Go Emitter Voltage = Base Voltage-0.7

Negative Voltage Gain of Cascode Amplifier Formula

Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground)
Avn = -(gmp*Rdg)

What are the applications of cascode amplifier?

The cascode amplifier is used to enhance the performance of an analog circuit. The utilization of cascode is a common method that can be used in the applications of transistors as well as vacuum tubes.

How to Calculate Negative Voltage Gain of Cascode Amplifier?

Negative Voltage Gain of Cascode Amplifier calculator uses Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground) to calculate the Negative Voltage Gain, The Negative Voltage gain of cascode amplifier formula is defined as a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output port by adding energy converted from some power supply to the signal. Negative Voltage Gain is denoted by Avn symbol.

How to calculate Negative Voltage Gain of Cascode Amplifier using this online calculator? To use this online calculator for Negative Voltage Gain of Cascode Amplifier, enter MOSFET Primary Transconductance (gmp) & Resistance between Drain and Ground (Rdg) and hit the calculate button. Here is how the Negative Voltage Gain of Cascode Amplifier calculation can be explained with given input values -> -4.74456 = -(0.01977*240).

FAQ

What is Negative Voltage Gain of Cascode Amplifier?
The Negative Voltage gain of cascode amplifier formula is defined as a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output port by adding energy converted from some power supply to the signal and is represented as Avn = -(gmp*Rdg) or Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground). MOSFET 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 & Resistance between Drain and Ground is the resistance that is from drain terminal of first transistor and ground .
How to calculate Negative Voltage Gain of Cascode Amplifier?
The Negative Voltage gain of cascode amplifier formula is defined as a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output port by adding energy converted from some power supply to the signal is calculated using Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground). To calculate Negative Voltage Gain of Cascode Amplifier, you need MOSFET Primary Transconductance (gmp) & Resistance between Drain and Ground (Rdg). With our tool, you need to enter the respective value for MOSFET Primary Transconductance & Resistance between Drain and Ground 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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