Bias Current in Differential Pair Calculator

✖Drain current 1 is the current that flows between the drain and the source terminals of a field-effect transistor (FET), which is a type of transistor commonly used in electronic circuits.ⓘ Drain Current 1 [I_d1]			+10% -10%
✖Drain current 2 is the current that flows between the drain and the source terminals of a field-effect transistor (FET), which is a type of transistor commonly used in electronic circuits.ⓘ Drain Current 2 [I_d2]			+10% -10%

✖DC bias current is the constant current that flows through a circuit or device to establish a certain operating point or bias point.ⓘ Bias Current in Differential Pair [I_b]

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Formula

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Bias Current in Differential Pair

Formula

`"I"_{"b"} = "I"_{"d1"}+"I"_{"d2"}`

Example

`"15.16mA"="7.65mA"+"7.51mA"`

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Bias Current in Differential Pair Solution

STEP 0: Pre-Calculation Summary

Formula Used

DC Bias Current = Drain Current 1+Drain Current 2
I_b = I_d1+I_d2
This formula uses 3 Variables

Variables Used

DC Bias Current - (Measured in Ampere) - DC bias current is the constant current that flows through a circuit or device to establish a certain operating point or bias point.
Drain Current 1 - (Measured in Ampere) - Drain current 1 is the current that flows between the drain and the source terminals of a field-effect transistor (FET), which is a type of transistor commonly used in electronic circuits.
Drain Current 2 - (Measured in Ampere) - Drain current 2 is the current that flows between the drain and the source terminals of a field-effect transistor (FET), which is a type of transistor commonly used in electronic circuits.

STEP 1: Convert Input(s) to Base Unit

Drain Current 1: 7.65 Milliampere --> 0.00765 Ampere (Check conversion here)
Drain Current 2: 7.51 Milliampere --> 0.00751 Ampere (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_b = I_d1+I_d2 --> 0.00765+0.00751

Evaluating ... ...

I_b = 0.01516

STEP 3: Convert Result to Output's Unit

0.01516 Ampere -->15.16 Milliampere (Check conversion here)

FINAL ANSWER

15.16 Milliampere <-- DC Bias Current

(Calculation completed in 00.020 seconds)

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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Verified by Anshika Arya

National Institute Of Technology (NIT), Hamirpur

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< 18 Biasing Calculators

Collector Current given Current Gain Mosfet

Go Collector Current = (Current Gain*(Negative Supply Voltage-Base Emitter Voltage))/(Base Resistance+(Current Gain+1)*Emitter Resistance)

Input Biasing Current of Mosfet

Go Input Biasing Current = (Negative Supply Voltage-Base Emitter Voltage)/(Base Resistance+(Current Gain+1)*Emitter Resistance)

Collector Emitter Voltage given Collector Resistance

Go Collector Emitter Voltage = Collector Supply Voltage-(Collector Current+Input Biasing Current)*Collector Load Resistor

Collector Current given Current Gain

Go Collector Current = Current Gain*(Collector Supply Voltage-Base Emitter Voltage)/Base Resistance

Collector Emitter Voltage

Go Collector Emitter Voltage = Collector Supply Voltage-Collector Load Resistor*Collector Current

DC Bias Current of MOSFET

Go DC Bias Current = 1/2*Transconductance Parameter*(Gate-Source Voltage-Threshold Voltage)^2

Collector Voltage with respect to Ground

Go Collector Voltage = Collector Supply Voltage-Collector Current*Collector Load Resistor

Emitter Voltage with respect to Ground

Go Emitter Voltage = -Negative Supply Voltage+(Emitter Current*Emitter Resistance)

Base Current of MOSFET

Go Input Biasing Current = (Bias Voltage-Base Emitter Voltage)/Base Resistance

DC Bias Output Voltage at Drain

Go Output Voltage = Supply Voltage-Load Resistance*DC Bias Current

Collector Current in Saturation

Go Collector Current Saturation = Collector Supply Voltage/Collector Load Resistor

DC Bias Current of MOSFET using Overdrive Voltage

Go DC Bias Current = 1/2*Transconductance Parameter*Effective Voltage^2

Input Bias Current

Go DC Bias Current = (Input Bias Current 1+Input Bias Current 2)/2

Bias Voltage of MOSFET

Go Total Instantaneous Bias Voltage = DC Bias Voltage+DC Voltage

Emitter Current of Mosfet

Go Emitter Current = Collector Current+Input Biasing Current

Collector Current of Mosfet

Go Collector Current = Current Gain*Input Biasing Current

Base Voltage with respect to Ground

Go Base Voltage = Emitter Voltage+Base Emitter Voltage

Bias Current in Differential Pair

Go DC Bias Current = Drain Current 1+Drain Current 2

Bias Current in Differential Pair Formula

DC Bias Current = Drain Current 1+Drain Current 2
I_b = I_d1+I_d2

How can capacitance of a gate be reduced?

The capacitance of a gate can be decreased by decreasing their areas or increasing the thickness of the insulating layers. The most effective method is to minimize the area of the capacitors by scaling down the devices. Scaled devices have smaller capacitance values because of their size shrinking.

How to Calculate Bias Current in Differential Pair?

Bias Current in Differential Pair calculator uses DC Bias Current = Drain Current 1+Drain Current 2 to calculate the DC Bias Current, Bias Current in Differential Pair is the summation of drain currents found in two Mosfets in the Differential pair. DC Bias Current is denoted by I_b symbol.

How to calculate Bias Current in Differential Pair using this online calculator? To use this online calculator for Bias Current in Differential Pair, enter Drain Current 1 (I_d1) & Drain Current 2 (I_d2) and hit the calculate button. Here is how the Bias Current in Differential Pair calculation can be explained with given input values -> 15160 = 0.00765+0.00751.

FAQ

What is Bias Current in Differential Pair?

Bias Current in Differential Pair is the summation of drain currents found in two Mosfets in the Differential pair and is represented as I_b = I_d1+I_d2 or DC Bias Current = Drain Current 1+Drain Current 2. Drain current 1 is the current that flows between the drain and the source terminals of a field-effect transistor (FET), which is a type of transistor commonly used in electronic circuits & Drain current 2 is the current that flows between the drain and the source terminals of a field-effect transistor (FET), which is a type of transistor commonly used in electronic circuits.

How to calculate Bias Current in Differential Pair?

Bias Current in Differential Pair is the summation of drain currents found in two Mosfets in the Differential pair is calculated using DC Bias Current = Drain Current 1+Drain Current 2. To calculate Bias Current in Differential Pair, you need Drain Current 1 (I_d1) & Drain Current 2 (I_d2). With our tool, you need to enter the respective value for Drain Current 1 & Drain Current 2 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 DC Bias Current?

In this formula, DC Bias Current uses Drain Current 1 & Drain Current 2. We can use 3 other way(s) to calculate the same, which is/are as follows -

DC Bias Current = 1/2*Transconductance Parameter*Effective Voltage^2
DC Bias Current = (Input Bias Current 1+Input Bias Current 2)/2
DC Bias Current = 1/2*Transconductance Parameter*(Gate-Source Voltage-Threshold Voltage)^2

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