A 0.45V continuous time-domain filter using asynchronous oscillator structures
File(s)
Accepted version
Author(s)
Leene, L
Constandinou, TG
Type
Conference Paper
Abstract
This paper presents a novel oscillator based filter structure for processing time-domain signals with linear dynamics that extensively uses digital logic by construction. Such a mixed signal topology is a key component for allowing efficient processing of asynchronous time encoded signals that does not necessitate external clocking. A miniaturized primitive is introduced as analogue time-domain memory that can be modelled, synthesized, and incorporated in closed loop mixed signal accelerators to realize more complex linear or non-linear computational systems. This is contextualized by demonstrating a compact low power filter operating at 0.45 V in 65 nm CMOS. Simulation results are presented showing an excess of 50 dB dynamic range with a FOM of 7fJ/pole which promises an order of magnitude improvement on state-of-the-art filters in nanometre CMOS.
Date Issued
2017-02-06
Date Acceptance
2016-09-30
Citation
Electronics, Circuits and Systems (ICECS), 2016 IEEE International Conference on, 2017, pp.49-52
Publisher
IEEE
Start Page
49
End Page
52
Journal / Book Title
Electronics, Circuits and Systems (ICECS), 2016 IEEE International Conference on
Copyright Statement
© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Grant Number
EP/K015060/1
EP/M020975/1
Source
IEEE International Conference on Electronics, Circuits and Systems (ICECS)
Publication Status
Published
Start Date
2016-12-11
Finish Date
2016-12-14
Coverage Spatial
Monte Carlo, Monaco