Input Offset Voltage of MOS Differential Amplifier given Saturation Current Calculator

✖Threshold voltage of transistor is the minimum gate to source voltage that is needed to create a conducting path between the source and drain terminals.ⓘ Threshold Voltage [V_t]			+10% -10%
✖Saturation current for DC is the transistor leakage current density in the absence of light. It is an important parameter that differentiates one transistor from another.ⓘ Saturation Current for DC [I_sc]			+10% -10%
✖Saturation current in a MOSFET is the maximum current that can flow through the device when it is fully on or in saturation mode.ⓘ Saturation Current [I_s]			+10% -10%

✖Input offset voltage is the voltage that must be applied between the two input terminals of the op-amp to obtain zero volts at the output.ⓘ Input Offset Voltage of MOS Differential Amplifier given Saturation Current [V_os]

⎘ Copy

👎

Formula

✖

Input Offset Voltage of MOS Differential Amplifier given Saturation Current

Formula

`"V"_{"os"} = "V"_{"t"}*("I"_{"sc"}/"I"_{"s"})`

Example

`"3.561644V"="19.5V"*("0.8mA"/"4.38mA")`

Calculator

LaTeX

Reset

👍

Download MOSFET Amplifiers Formulas PDF

Input Offset Voltage of MOS Differential Amplifier given Saturation Current Solution

STEP 0: Pre-Calculation Summary

Formula Used

Input Offset Voltage = Threshold Voltage*(Saturation Current for DC/Saturation Current)
V_os = V_t*(I_sc/I_s)
This formula uses 4 Variables

Variables Used

Input Offset Voltage - (Measured in Volt) - Input offset voltage is the voltage that must be applied between the two input terminals of the op-amp to obtain zero volts at the output.
Threshold Voltage - (Measured in Volt) - Threshold voltage of transistor is the minimum gate to source voltage that is needed to create a conducting path between the source and drain terminals.
Saturation Current for DC - (Measured in Ampere) - Saturation current for DC is the transistor leakage current density in the absence of light. It is an important parameter that differentiates one transistor from another.
Saturation Current - (Measured in Ampere) - Saturation current in a MOSFET is the maximum current that can flow through the device when it is fully on or in saturation mode.

STEP 1: Convert Input(s) to Base Unit

Threshold Voltage: 19.5 Volt --> 19.5 Volt No Conversion Required
Saturation Current for DC: 0.8 Milliampere --> 0.0008 Ampere (Check conversion here)
Saturation Current: 4.38 Milliampere --> 0.00438 Ampere (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_os = V_t*(I_sc/I_s) --> 19.5*(0.0008/0.00438)

Evaluating ... ...

V_os = 3.56164383561644

STEP 3: Convert Result to Output's Unit

3.56164383561644 Volt --> No Conversion Required

FINAL ANSWER

3.56164383561644 ≈ 3.561644 Volt <-- Input Offset Voltage

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electronics » Amplifiers » MOSFET Amplifiers » Differential Configuration » Input Offset Voltage of MOS Differential Amplifier given Saturation Current

Credits

Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

Payal Priya has created this Calculator and 600+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

Urvi Rathod has verified this Calculator and 1900+ more calculators!

< 9 Differential Configuration Calculators

Differential Voltage Gain in MOS Differential Amplifier

Go Differential Gain = Transconductance*(1/(Common Emitter Current Gain*Resistance of Primary Winding in Secondary)+(1/(1/(Common Emitter Current Gain*Resistance of Secondary Winding in Primary))))

Total Input Offset Voltage of MOS Differential Amplifier given Saturation Current

Go Input Offset Voltage = sqrt((Change in Collector Resistance/Collector Resistance)^2+(Saturation Current for DC/Saturation Current)^2)

Minimum Input Common-Mode Range of MOS Differential Amplifier

Go Common-Mode Range = Threshold Voltage+Effective Voltage+Voltage between Gate and Source-Load Voltage

Input Offset Voltage of MOS Differential Amplifier given Saturation Current

Go Input Offset Voltage = Threshold Voltage*(Saturation Current for DC/Saturation Current)

Input Offset Voltage of MOS Differential Amplifier when Aspect Ratio Mismatches

Go Input Offset Voltage = (Effective Voltage/2)*(Aspect Ratio/Aspect Ratio 1)

Maximum Input Common-Mode Range of MOS Differential Amplifier

Go Common-Mode Range = Threshold Voltage+Load Voltage-(1/2*Load Resistance)

Input Voltage of MOS Differential Amplifier on Small-Signal Operation

Go Input Voltage = Common-Mode DC Voltage+(1/2*Differential Input Signal)

Input Offset Voltage of MOS Differential Amplifier

Go Input Offset Voltage = Output DC Offset Voltage/Differential Gain

Transconductance of MOS Differential Amplifier on Small-Signal Operation

Go Transconductance = Total Current/Effective Voltage

Input Offset Voltage of MOS Differential Amplifier given Saturation Current Formula

Input Offset Voltage = Threshold Voltage*(Saturation Current for DC/Saturation Current)
V_os = V_t*(I_sc/I_s)

Why is input offset voltage important?

When used in amplifiers of sensors, etc., the input offset voltage of op-amp results in an error of sensor detection sensitivity. To keep sensing errors below a specified tolerance level, it is necessary to select an op-amp with low input offset voltage.

How to Calculate Input Offset Voltage of MOS Differential Amplifier given Saturation Current?

Input Offset Voltage of MOS Differential Amplifier given Saturation Current calculator uses Input Offset Voltage = Threshold Voltage*(Saturation Current for DC/Saturation Current) to calculate the Input Offset Voltage, The Input Offset Voltage of MOS Differential Amplifier given saturation current formula is defined as the voltage that must be applied between the two input terminals of the op-amp to obtain zero volts at the output. Ideally, the output of the op-amp should be at zero volts when the inputs are grounded. in reality, the input terminals are at slightly different dc potentials. Input Offset Voltage is denoted by V_os symbol.

How to calculate Input Offset Voltage of MOS Differential Amplifier given Saturation Current using this online calculator? To use this online calculator for Input Offset Voltage of MOS Differential Amplifier given Saturation Current, enter Threshold Voltage (V_t), Saturation Current for DC (I_sc) & Saturation Current (I_s) and hit the calculate button. Here is how the Input Offset Voltage of MOS Differential Amplifier given Saturation Current calculation can be explained with given input values -> 4.741641 = 19.5*(0.0008/0.00438).

FAQ

What is Input Offset Voltage of MOS Differential Amplifier given Saturation Current?

The Input Offset Voltage of MOS Differential Amplifier given saturation current formula is defined as the voltage that must be applied between the two input terminals of the op-amp to obtain zero volts at the output. Ideally, the output of the op-amp should be at zero volts when the inputs are grounded. in reality, the input terminals are at slightly different dc potentials and is represented as V_os = V_t*(I_sc/I_s) or Input Offset Voltage = Threshold Voltage*(Saturation Current for DC/Saturation Current). Threshold voltage of transistor is the minimum gate to source voltage that is needed to create a conducting path between the source and drain terminals, Saturation current for DC is the transistor leakage current density in the absence of light. It is an important parameter that differentiates one transistor from another & Saturation current in a MOSFET is the maximum current that can flow through the device when it is fully on or in saturation mode.

How to calculate Input Offset Voltage of MOS Differential Amplifier given Saturation Current?

The Input Offset Voltage of MOS Differential Amplifier given saturation current formula is defined as the voltage that must be applied between the two input terminals of the op-amp to obtain zero volts at the output. Ideally, the output of the op-amp should be at zero volts when the inputs are grounded. in reality, the input terminals are at slightly different dc potentials is calculated using Input Offset Voltage = Threshold Voltage*(Saturation Current for DC/Saturation Current). To calculate Input Offset Voltage of MOS Differential Amplifier given Saturation Current, you need Threshold Voltage (V_t), Saturation Current for DC (I_sc) & Saturation Current (I_s). With our tool, you need to enter the respective value for Threshold Voltage, Saturation Current for DC & Saturation Current 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 Input Offset Voltage?

In this formula, Input Offset Voltage uses Threshold Voltage, Saturation Current for DC & Saturation Current. We can use 3 other way(s) to calculate the same, which is/are as follows -

Input Offset Voltage = Output DC Offset Voltage/Differential Gain
Input Offset Voltage = (Effective Voltage/2)*(Aspect Ratio/Aspect Ratio 1)
Input Offset Voltage = sqrt((Change in Collector Resistance/Collector Resistance)^2+(Saturation Current for DC/Saturation Current)^2)

Home

FREE PDFs

🔍 Search