`Q = omega_0 / (2* alpha )`

Enter a value for all fields

The Sallen-Key Factor (ω₀ , α)  calculator computes the factor based on the angular velocity and a coefficient.

INSTRUCTIONS: Choose units and enter the following:

• (ω₀) Angular velocity
• (α) Coefficient

Sallen-Key Factor (ω₀ , α) : The calculator returns the factor.  

The Math / Science

The formula for the Sallen-Key Factor (ω₀ , α) is:

    Q = ω₀ / (2α)

where:

• Q is the Sallen-Key Factor (ω₀ , α) in units of frequency (e.g. hertz)
• ω₀ is the angular velocity
• α is the coefficient

This equation computes the Q factor of the unity gain low pass filter implementation of the Sallen-Key topology.  This electronic filter is a special case of a second-order unity gain filter version of the voltage-controlled voltage-source (VCVS) topology.

Q is a function of the angular frequency `omega_0`and the attenuation factor `alpha`

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Sallen-Key Calculators:

• Sallen-Key α filter 
• Sallen-Key Q Factor (ω₀ ,α) 
• Sallen-Key Q Factor (R&C) 
• Sallen-Key Unity Gain Low Pass Filter - Transfer Function
• Sallen-Key Unity Gain Low Pass Filter - Transfer Function (f0)
• Sallen-Key Unity Gain Low Pass Filter - Transfer Function (R&C)