Contention Current in Ratioed Circuits Calculator

✖CMOS Static Power is defined as the leakage current due to the very low static power consumption in CMOS devices.ⓘ CMOS Static Power [P_st]			+10% -10%
✖Base Collector Voltage is a crucial parameter in transistor biasing. It refers to the voltage difference between the base and collector terminals of the transistor when it is in its active state.ⓘ Base Collector Voltage [V_bc]			+10% -10%
✖Subthreshold Current is subthreshold leakage through OFF transistors.ⓘ Subthreshold Current [i_st]			+10% -10%
✖Gate Current is defined as when there is no voltage between the gate and source terminals, no current flows in the drain except leakage current, because of a very high drain-source impedance.ⓘ Gate Current [i_g]			+10% -10%
✖Junction Current is junction leakage from source/drain diffusions.ⓘ Junction Current [i_j]			+10% -10%

✖Contention Current is defined as the contention current occuring in the ratioed circuits.ⓘ Contention Current in Ratioed Circuits [i_con]

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Contention Current in Ratioed Circuits Solution

STEP 0: Pre-Calculation Summary

Formula Used

Contention Current = (CMOS Static Power/Base Collector Voltage)-(Subthreshold Current+Gate Current+Junction Current)
i_con = (P_st/V_bc)-(i_st+i_g+i_j)
This formula uses 6 Variables

Variables Used

Contention Current - (Measured in Ampere) - Contention Current is defined as the contention current occuring in the ratioed circuits.
CMOS Static Power - (Measured in Watt) - CMOS Static Power is defined as the leakage current due to the very low static power consumption in CMOS devices.
Base Collector Voltage - (Measured in Volt) - Base Collector Voltage is a crucial parameter in transistor biasing. It refers to the voltage difference between the base and collector terminals of the transistor when it is in its active state.
Subthreshold Current - (Measured in Ampere) - Subthreshold Current is subthreshold leakage through OFF transistors.
Gate Current - (Measured in Ampere) - Gate Current is defined as when there is no voltage between the gate and source terminals, no current flows in the drain except leakage current, because of a very high drain-source impedance.
Junction Current - (Measured in Ampere) - Junction Current is junction leakage from source/drain diffusions.

STEP 1: Convert Input(s) to Base Unit

CMOS Static Power: 67.37 Milliwatt --> 0.06737 Watt (Check conversion here)
Base Collector Voltage: 2.02 Volt --> 2.02 Volt No Conversion Required
Subthreshold Current: 1.6 Milliampere --> 0.0016 Ampere (Check conversion here)
Gate Current: 4.5 Milliampere --> 0.0045 Ampere (Check conversion here)
Junction Current: 1.5 Milliampere --> 0.0015 Ampere (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

i_con = (P_st/V_bc)-(i_st+i_g+i_j) --> (0.06737/2.02)-(0.0016+0.0045+0.0015)

Evaluating ... ...

i_con = 0.0257514851485149

STEP 3: Convert Result to Output's Unit

0.0257514851485149 Ampere -->25.7514851485149 Milliampere (Check conversion here)

FINAL ANSWER

25.7514851485149 ≈ 25.75149 Milliampere <-- Contention Current

(Calculation completed in 00.004 seconds)

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< CMOS Power Metrics Calculators

Activity Factor

LaTeX Go Activity Factor = Switching Power/(Capacitance*Base Collector Voltage^2*Frequency)

Switching Power

LaTeX Go Switching Power = Activity Factor*(Capacitance*Base Collector Voltage^2*Frequency)

Short-Circuit Power in CMOS

LaTeX Go Short-Circuit Power = Dynamic Power-Switching Power

Dynamic Power in CMOS

LaTeX Go Dynamic Power = Short-Circuit Power+Switching Power

Contention Current in Ratioed Circuits Formula

LaTeX Go

Contention Current = (CMOS Static Power/Base Collector Voltage)-(Subthreshold Current+Gate Current+Junction Current)
i_con = (P_st/V_bc)-(i_st+i_g+i_j)

What do you mean by static power?

Static power is consumed even when a chip is not switching. CMOS has replaced nMOS processes because contention current inherent to nMOS logic limited the number of transistors that could be integrated on one chip. Static CMOS gates have no contention current. Static power arises from subthreshold, gate, and junction leakage
currents and contention current.

How to Calculate Contention Current in Ratioed Circuits?

Contention Current in Ratioed Circuits calculator uses Contention Current = (CMOS Static Power/Base Collector Voltage)-(Subthreshold Current+Gate Current+Junction Current) to calculate the Contention Current, The Contention current in ratioed circuits formula is defined as charging and discharging of load capacitances. In one complete cycle of CMOS logic, current flows from VDD to the load capacitance to charge it and then flows from the charged load capacitance to ground during discharge. Contention Current is denoted by i_con symbol.

How to calculate Contention Current in Ratioed Circuits using this online calculator? To use this online calculator for Contention Current in Ratioed Circuits, enter CMOS Static Power (P_st), Base Collector Voltage (V_bc), Subthreshold Current (i_st), Gate Current (i_g) & Junction Current (i_j) and hit the calculate button. Here is how the Contention Current in Ratioed Circuits calculation can be explained with given input values -> 25751.49 = (0.06737/2.02)-(0.0016+0.0045+0.0015).

FAQ

What is Contention Current in Ratioed Circuits?

The Contention current in ratioed circuits formula is defined as charging and discharging of load capacitances. In one complete cycle of CMOS logic, current flows from VDD to the load capacitance to charge it and then flows from the charged load capacitance to ground during discharge and is represented as i_con = (P_st/V_bc)-(i_st+i_g+i_j) or Contention Current = (CMOS Static Power/Base Collector Voltage)-(Subthreshold Current+Gate Current+Junction Current). CMOS Static Power is defined as the leakage current due to the very low static power consumption in CMOS devices, Base Collector Voltage is a crucial parameter in transistor biasing. It refers to the voltage difference between the base and collector terminals of the transistor when it is in its active state, Subthreshold Current is subthreshold leakage through OFF transistors, Gate Current is defined as when there is no voltage between the gate and source terminals, no current flows in the drain except leakage current, because of a very high drain-source impedance & Junction Current is junction leakage from source/drain diffusions.

How to calculate Contention Current in Ratioed Circuits?

The Contention current in ratioed circuits formula is defined as charging and discharging of load capacitances. In one complete cycle of CMOS logic, current flows from VDD to the load capacitance to charge it and then flows from the charged load capacitance to ground during discharge is calculated using Contention Current = (CMOS Static Power/Base Collector Voltage)-(Subthreshold Current+Gate Current+Junction Current). To calculate Contention Current in Ratioed Circuits, you need CMOS Static Power (P_st), Base Collector Voltage (V_bc), Subthreshold Current (i_st), Gate Current (i_g) & Junction Current (i_j). With our tool, you need to enter the respective value for CMOS Static Power, Base Collector Voltage, Subthreshold Current, Gate Current & Junction Current 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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