Drain Current in Saturation Region of PMOS Transistor Solution

STEP 0: Pre-Calculation Summary
Formula Used
Saturation Drain Current = 1/2*Process Transconductance Parameter in PMOS*Aspect Ratio*(Voltage between Gate and Source-modulus(Threshold Voltage))^2
Ids = 1/2*k'p*WL*(VGS-modulus(VT))^2
This formula uses 1 Functions, 5 Variables
Functions Used
modulus - Modulus of a number is the remainder when that number is divided by another number., modulus
Variables Used
Saturation Drain Current - (Measured in Ampere) - Saturation drain current below threshold voltage is defined as the sub threshold current and varies exponentially with gate to source voltage.
Process Transconductance Parameter in PMOS - (Measured in Siemens) - The Process Transconductance Parameter in PMOS (PTM) is a parameter used in semiconductor device modeling to characterize the performance of a transistor.
Aspect Ratio - Aspect ratio is defined as the ratio of the width of the transistor's channel to its length. It is the ratio of the width of the gate to the distance btw the source & drain regions of the transistor.
Voltage between Gate and Source - (Measured in Volt) - The voltage between gate and source of a field-effect transistor (FET) is known as the gate-source voltage (VGS). It is an important parameter that affects the operation of the FET.
Threshold Voltage - (Measured in Volt) - Threshold voltage, also known as the gate threshold voltage or simply Vth, is a critical parameter in the operation of field-effect transistors, which are fundamental components in modern electronics.
STEP 1: Convert Input(s) to Base Unit
Process Transconductance Parameter in PMOS: 2.1 Millisiemens --> 0.0021 Siemens (Check conversion ​here)
Aspect Ratio: 6 --> No Conversion Required
Voltage between Gate and Source: 2.86 Volt --> 2.86 Volt No Conversion Required
Threshold Voltage: 0.7 Volt --> 0.7 Volt No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Ids = 1/2*k'p*WL*(VGS-modulus(VT))^2 --> 1/2*0.0021*6*(2.86-modulus(0.7))^2
Evaluating ... ...
Ids = 0.02939328
STEP 3: Convert Result to Output's Unit
0.02939328 Ampere -->29.39328 Milliampere (Check conversion ​here)
FINAL ANSWER
29.39328 Milliampere <-- Saturation Drain Current
(Calculation completed in 00.020 seconds)

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Birsa Institute of Technology (BIT), Sindri
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​ LaTeX ​ Go Drain Current = Process Transconductance Parameter in PMOS*Aspect Ratio*((Voltage between Gate and Source-modulus(Threshold Voltage))*Voltage between Drain and Source-1/2*(Voltage between Drain and Source)^2)
Drain Current in Triode Region of PMOS Transistor given Vsd
​ LaTeX ​ Go Drain Current = Process Transconductance Parameter in PMOS*Aspect Ratio*(modulus(Effective Voltage)-1/2*Voltage between Drain and Source)*Voltage between Drain and Source
Drain Current in Saturation Region of PMOS Transistor
​ LaTeX ​ Go Saturation Drain Current = 1/2*Process Transconductance Parameter in PMOS*Aspect Ratio*(Voltage between Gate and Source-modulus(Threshold Voltage))^2
Drain Current in Saturation Region of PMOS Transistor given Vov
​ LaTeX ​ Go Saturation Drain Current = 1/2*Process Transconductance Parameter in PMOS*Aspect Ratio*(Effective Voltage)^2

Drain Current in Saturation Region of PMOS Transistor Formula

​LaTeX ​Go
Saturation Drain Current = 1/2*Process Transconductance Parameter in PMOS*Aspect Ratio*(Voltage between Gate and Source-modulus(Threshold Voltage))^2
Ids = 1/2*k'p*WL*(VGS-modulus(VT))^2

What is drain current in MOSFET?

The drain current below threshold voltage is defined as the subthreshold current and varies exponentially with Vgs. The reciprocal of the slope of the log(Ids) vs. Vgs characteristic is defined as the subthreshold slope, S, and is one of the most critical performance metrics for MOSFETs in logic applications.

Which way does current flow in a PMOS?

In an NMOS electrons are the charge carriers. So electrons travel from Source to Drain (meaning the current goes from Drain > Source.) In a PMOS holes are the charge carries. So holes travel from Source to Drain.

How to Calculate Drain Current in Saturation Region of PMOS Transistor?

Drain Current in Saturation Region of PMOS Transistor calculator uses Saturation Drain Current = 1/2*Process Transconductance Parameter in PMOS*Aspect Ratio*(Voltage between Gate and Source-modulus(Threshold Voltage))^2 to calculate the Saturation Drain Current, The Drain Current in Saturation Region of PMOS Transistor drain current first increases linearly with the applied drain-to-source voltage, but then reaches a maximum value. A depletion layer located at the drain end of the gate accommodates the additional drain-to-source voltage. This behavior is referred to as drain current saturation. Saturation Drain Current is denoted by Ids symbol.

How to calculate Drain Current in Saturation Region of PMOS Transistor using this online calculator? To use this online calculator for Drain Current in Saturation Region of PMOS Transistor, enter Process Transconductance Parameter in PMOS (k'p), Aspect Ratio (WL), Voltage between Gate and Source (VGS) & Threshold Voltage (VT) and hit the calculate button. Here is how the Drain Current in Saturation Region of PMOS Transistor calculation can be explained with given input values -> 29393.28 = 1/2*0.0021*6*(2.86-modulus(0.7))^2.

FAQ

What is Drain Current in Saturation Region of PMOS Transistor?
The Drain Current in Saturation Region of PMOS Transistor drain current first increases linearly with the applied drain-to-source voltage, but then reaches a maximum value. A depletion layer located at the drain end of the gate accommodates the additional drain-to-source voltage. This behavior is referred to as drain current saturation and is represented as Ids = 1/2*k'p*WL*(VGS-modulus(VT))^2 or Saturation Drain Current = 1/2*Process Transconductance Parameter in PMOS*Aspect Ratio*(Voltage between Gate and Source-modulus(Threshold Voltage))^2. The Process Transconductance Parameter in PMOS (PTM) is a parameter used in semiconductor device modeling to characterize the performance of a transistor, Aspect ratio is defined as the ratio of the width of the transistor's channel to its length. It is the ratio of the width of the gate to the distance btw the source & drain regions of the transistor, The voltage between gate and source of a field-effect transistor (FET) is known as the gate-source voltage (VGS). It is an important parameter that affects the operation of the FET & Threshold voltage, also known as the gate threshold voltage or simply Vth, is a critical parameter in the operation of field-effect transistors, which are fundamental components in modern electronics.
How to calculate Drain Current in Saturation Region of PMOS Transistor?
The Drain Current in Saturation Region of PMOS Transistor drain current first increases linearly with the applied drain-to-source voltage, but then reaches a maximum value. A depletion layer located at the drain end of the gate accommodates the additional drain-to-source voltage. This behavior is referred to as drain current saturation is calculated using Saturation Drain Current = 1/2*Process Transconductance Parameter in PMOS*Aspect Ratio*(Voltage between Gate and Source-modulus(Threshold Voltage))^2. To calculate Drain Current in Saturation Region of PMOS Transistor, you need Process Transconductance Parameter in PMOS (k'p), Aspect Ratio (WL), Voltage between Gate and Source (VGS) & Threshold Voltage (VT). With our tool, you need to enter the respective value for Process Transconductance Parameter in PMOS, Aspect Ratio, Voltage between Gate and Source & Threshold Voltage 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 Saturation Drain Current?
In this formula, Saturation Drain Current uses Process Transconductance Parameter in PMOS, Aspect Ratio, Voltage between Gate and Source & Threshold Voltage. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Saturation Drain Current = 1/2*Process Transconductance Parameter in PMOS*Aspect Ratio*(Effective Voltage)^2
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