Filter Designer

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"Filter Designer" calculates multistage analog active filters.

Convenience, visibility and ability to find an optimal solution in minimum time.

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* Lowpass filters

* Highpass filters

* Bandpass filters

* Bandstop filters

* Allpass filters

Responses:

* Bessel

* Butterworth

* Chebyshev

* Linear Phase 0.05 degrees

* Linear Phase 0.5 degrees

* Gaussian to 6dB

* Gaussian to 12dB

Topologies:

* Real Pole Non-Inverting

* Real Pole Inverting

* Real Pole Fully Differential

* Multiple-Feedback, Single-Ended Input

* Multiple-Feedback, Fully Differential

* Multiple-Feedback, Differential Input for 2-nd order LP

* In-The-Loop, Single-Ended Input

* In-The-Loop, Fully Differential

* Sallen-Key

* RLC for 2-nd order LPF

* 3d and 4th order low-pass filter with one Op Amp

* 3d order high-pass filter with one Op Amp

Tuning of the values of all circuit components.

Monte-Carlo worst-case analysis

Reverse: calculation of filter parameters at known values of its components.

Auxiliary tools.

"Circuit Calculator" has the same user interface, so you can try "Circuit Calculator Demo" before you buy:

https://play.google.com/store/apps/details?id=com.vdv.circuitcalculator.demo