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Title: 0.013mm2, kHz-to-GHz-Bandwidth, Third-Order All-Pole Lowpass Filter with 0.52-to-1.11 pW/Pole/Hz Efficiency
Authors: Chen, Yong
Mak, Pui In (麥沛然)
Qian, He
Zhang, Li
Wang, Yan
Issue Date: 10-Oct-2013
Publisher: Institution of Engineering and Technology - IET
Citation: Electronics Letters, Oct 2013, Vol. 49,Issue 21, p. 1340-1342
Abstract: A third-order all-pole analogue lowpass filter (LPF) with kHz-to-GHz bandwidth tunability is proposed. It embeds a current-reuse active inductor into a current-scalable source follower to realise three concurrently tunable poles in a single branch. The LPF fabricated in 0.18 μm CMOS measures a tunable - 3 dB cutoff from 0.8 kHz to 1.2 GHz, under a scalable power of 1.25 nW to 4.01 mW. Owing to no tuning capacitor, the die area is extremely compact (0.013 mm2) and the achieved filter efficiency is 0.52 to 1.11 pW/pole/Hz.
ISSN: 0013-5194
Keywords: CMOS integrated circuits
UHF filters
Access: View full-text via DOI

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