Complex conjugate poles implementation in discrete‐time charge‐domain filters | Zendy

Sohrabi Z. | Zendy; Jannesari A. | Zendy

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Complex conjugate poles implementation in discrete‐time charge‐domain filters

Author(s) -

Sohrabi Z.,

Jannesari A.

Publication year - 2015

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

eISSN - 1350-911X

pISSN - 0013-5194

DOI - 10.1049/el.2015.0384

Subject(s) - conjugate , time domain , charge (physics) , discrete time and continuous time , complex conjugate , computer science , electronic engineering , domain (mathematical analysis) , physics , control theory (sociology) , electrical engineering , engineering , mathematics , mathematical analysis , artificial intelligence , control (management) , computer vision , statistics , quantum mechanics

A discrete‐time charge‐domain filter is proposed, which can realise complex conjugate poles in the transfer function of the filter. By employing a second transconductance in the feedback path of a second‐order infinite impulse response charge‐domain filter, it is proved that the filter topology is capable of implementing complex poles. This method makes charge‐sampling filters more efficient in designing frequency‐domain filters where they can be used to synthesise any type of filter structures such as Butterworth, Chebyshev and so on.

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