A 4th-order 28.8MHz low-pass analog filter uses a modified version of Sallen-Key (SK) biquad that solves the standard SK cell critical aspect due to the out-of-band zeros (OoB). The proposed cell completely cancel the OoB zeros by means of a low-power auxiliary path and a specific design optimization.
DE MATTEIS, M., Resta, F., Pipino, A., D'Amico, S., Baschirotto, A. (2016). A 28.8MHz 21.1dBm-IIP3 3.2mW Sallen-Key 4th-Order filter with out-of-band zeros cancellation. In Proceedings - IEEE International Symposium on Circuits and Systems, ISCAS 2016; Montreal's Sheraton CentreMontreal; Canada; 22-25 may 2016 (pp.2902-2902). Institute of Electrical and Electronics Engineers Inc. [10.1109/ISCAS.2016.7539205].
A 28.8MHz 21.1dBm-IIP3 3.2mW Sallen-Key 4th-Order filter with out-of-band zeros cancellation
DE MATTEIS, MARCELLOPrimo
;RESTA, FEDERICASecondo
;PIPINO, ALESSANDRA;BASCHIROTTO, ANDREAUltimo
2016
Abstract
A 4th-order 28.8MHz low-pass analog filter uses a modified version of Sallen-Key (SK) biquad that solves the standard SK cell critical aspect due to the out-of-band zeros (OoB). The proposed cell completely cancel the OoB zeros by means of a low-power auxiliary path and a specific design optimization.
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