A 4th-order single-loop Follow-the-Leader-Feedback (FLFB) low-pass filter is hereby presented. The outstanding FLFB noise behavior has been exploited to release a specific power budget for linearity performance enhancement. Moreover, two pairs of complex poles are synthesized by using a single compact Active-RC cell, avoiding cascade of two or more stages (typically needed for high order filters), and relaxing this way noise power constraints. A prototype of the filter has been integrated in CMOS 0.18μm technological node, having 22.5MHz -3dB low-pass frequency. 21.5dBm in-band IIP3 and 76μVRMS input referred in-band integrated noise have been achieved. The SNR for a -40dB-THD is 69dB. The power consumption is 7mA. The efficiency of the hereby proposed technique is demonstrated by the very high Figure-of-Merit (160J-1) achieved by the FLFB filter comparing with the Active-RC filters state-of-the-art.

Pipino, A., DE MATTEIS, M., Pezzotta, A., Resta, F., D'Amico, S., Baschirotto, A. (2016). A 22.5MHz 21.5dBm-IIP3 4th-Order FLFB analog filter. In European Solid-State Circuits Conference (pp.289-292). IEEE Computer Society [10.1109/ESSCIRC.2016.7598299].

A 22.5MHz 21.5dBm-IIP3 4th-Order FLFB analog filter

PIPINO, ALESSANDRA
Primo
;
DE MATTEIS, MARCELLO
Secondo
;
PEZZOTTA, ALESSANDRO;RESTA, FEDERICA;BASCHIROTTO, ANDREA
Ultimo
2016

Abstract

A 4th-order single-loop Follow-the-Leader-Feedback (FLFB) low-pass filter is hereby presented. The outstanding FLFB noise behavior has been exploited to release a specific power budget for linearity performance enhancement. Moreover, two pairs of complex poles are synthesized by using a single compact Active-RC cell, avoiding cascade of two or more stages (typically needed for high order filters), and relaxing this way noise power constraints. A prototype of the filter has been integrated in CMOS 0.18μm technological node, having 22.5MHz -3dB low-pass frequency. 21.5dBm in-band IIP3 and 76μVRMS input referred in-band integrated noise have been achieved. The SNR for a -40dB-THD is 69dB. The power consumption is 7mA. The efficiency of the hereby proposed technique is demonstrated by the very high Figure-of-Merit (160J-1) achieved by the FLFB filter comparing with the Active-RC filters state-of-the-art.
paper
Active Filters; Analog Filters; Analog Integrated Circuits; Follow-the-Leader-Feedback; Low-Power; Hardware and Architecture; Electrical and Electronic Engineering
English
European Solid-State Circuits Conference, ESSCIRC 12 - 15 September
2016
European Solid-State Circuits Conference
9781509029723
2016
2016-
289
292
7598299
http://ieeexplore.ieee.org/xpl/conferences.jsp
none
Pipino, A., DE MATTEIS, M., Pezzotta, A., Resta, F., D'Amico, S., Baschirotto, A. (2016). A 22.5MHz 21.5dBm-IIP3 4th-Order FLFB analog filter. In European Solid-State Circuits Conference (pp.289-292). IEEE Computer Society [10.1109/ESSCIRC.2016.7598299].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/137710
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