Ching-Yih Tseng, A Multiple-Exchange Algorithm for Complex Chebyshev Approximation by Polynomials on the Unit Circle, SIAM Journal on Numerical Analysis, Vol. 33, No. 5 (Oct., 1996), pp. 2017-2049 ...

Just to mention, the -3dB point of this filter is 3 kHz. This circuit is almost a zero offset configuration except for the effect of the op-amp’s input bias current flowing in the three resistors.

The problem of obtaining Chebyshev—Padé approximants for the Chebyshev series $\sum_ {0}^ {\infty \prime }c_ {k}T_ {k} (x)$ is directly related to the Padé approximation of the corresponding power ...