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Research Publications

Publications

With strong backgrounds in pure  research and an abundance of graduate degrees, it is no surprise that our staff have a long list of well-respected academic publications. Below you will find a selection of our favorites.

Publications in 2013

White paper ADC: Pipeline versus SAR

In the past decades, the pipeline converter has become very popular in the industry. The basic implementation requires accurate operational amplifiers and capacitors. With newer technology nodes, the implementation of high gain op amps has become less trivial and the need for low power consumption has driven the development of modern pipeline converters with low gain amplifiers in combination with extensive calibration scheme's.

Successive Approximation Register (SAR) ADCs have been around for a long time. In fact this was the first ADC architecture, buildup of a DAC, a comparator and a register. Since it does not require any amplifiers, its power consumption can be very low. Recent developments have significantly improved its sample-rate and the architecture fits very well to modern process technologies: switches and capacitors scale very well.

The white paper compares the pipeline and SAR ADC architectures, starting with a circuit level comparison in the first chapter and followed by a comparison based on literature study in chapter two. Chapter three deals with very high speed conversion (> 500 MS/s) and chapter four discusses high resolution conversion (> 14 ENOB).

This white paper “Pipeline versus SAR” is available under NDA. Contact us by phone or e-mail.

How the “digital” amplifier becomes more digital.

At the Bits & Chips Conference on June 9, Sander Gierkink presented: How the “digital” amplifier becomes more digital. The slides of this presentation can be downloaded here. The key-element in a true digital audio amplifier is the feedback ADC. This ADC must have a high resolution and low-latency to make the feedback with high performance in the audio band possible. This ADC is in development

Publications in 2012

Phased-array antenna beam squinting related to frequency dependency of delay circuits

Garakoui, Seyed Kasra ; Klumperink, Eric A M ; Nauta, Bram ; Van Vliet, Frank F E Microwave Conference (EuMC), 2011 41st European Year: 2011, Page(s): 1304 - 1307 ISBN: 978-1-61284-235-6

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Advance in silicon phased-array receiver ICs

Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International, 17-22 June 2012, Van Vliet, Frank F E ; Klumperink, Eric A M ; Soer, Michiel C M ; Garakoui, Seyed Kasra ; De Boer, A. ; De Hek, A. P. ; Heij, W.de ; Nauta, Bram ISBN: 978-1-4673-1085-7

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A 1-to-2.5GHz phased-array IC based on gm-RC all-pass time-delay cells

Seyed Kasra Garakoui, Eric A.M. Klumperink, Bram Nauta, Frank F.E Van Vliet; 2012 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, February 19-23, Digest of Technical Papers, pp. 80-82, 2012, ISBN 978-1-4673-0376-7

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Publications in 2011

Exploring the Use of Two Antennas for Crosscorrelation Spectrum Sensing

M.S. Oude Alink, A.R. Smeenge, A.B.J. Kokkeler, E.A.M. Klumperink, G.J.M. Smit and B. Nauta Integrated Circuit Design / Computer Architecture for Embedded Systems CTIT Research Institute, University of Twente, Enschede, The Netherlands

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Publications in 2010

A radiation-hardened uHz-range 24bit 2.5mW digital-to-analog-converter

Vincent Arkesteijn, Daniël Schinkel, Anne Stellinga, Ed van Tuijl, Proceedings of the Third International Workshop on Analogue and Mixed Signal Integrated Circuits for Space Applications, September 2010

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Time Delay Circuits: A Quality Criterion for Delay Variations versus Frequency

Seyed Kasra Garakoui, Eric A.M. Klumperink, Bram Nauta, Frank E. van Vliet, Proceedings of 2010 IEEE International Symposium on Circuits and Systems, May 2010, pp.4281-4284

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A High-Efficiency 4x45W Car Audio Power Amplifier using Load Current Sharing

C. Mensink, E. van Tuijl, S. Gierkink, F. Mostert and R. van der Zee, VLSI Circuits (VLSIC), 2010 IEEE Symposium

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Power Efficient Gigabit Communication Over Capacitively Driven RC-Limited On-Chip Interconnects

Mensink, E., Schinkel, D., Klumperink, E.A.M., Tuijl, A.J.M. van , Nauta, B. IEEE Journal of Solid-State Circuits, vol.45, no.2, pp.447-457, Feb. 2010

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A 10-bit Charge-Redistribution ADC Consuming 1.9 uW at 1 MS/s

Elzakker, M. van , Tuijl, A.J.M. van , Geraedts, P.F.J., Schinkel, D., Klumperink, E.A.M., Nauta, B.Solid-State Circuits, IEEE Journal of , vol.45, no.5, pp.1007-1015, May 2010

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Publications in 2009

Jitter Analysis and a Benchmarking Figure-of-Merit for Phase-Locked Loops

Xiang Gao, Eric A. M. Klumperink, Paul F. J. Geraedts, and Bram Nauta. IEEE transactions on circuits and systems—II: express briefs, vol. 56, NO. 2, February 2009

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A 3-Level PWM ADSL2+ CO Line Driver

Gierkink, S., Lakshmikumar, K., Mukundagiri, V., Lim, D., Muralt, A., Larsen, F. Proceedings of 2009 IEEE Custom Integrated Circuits Conference, September 2009, pp.543-546, ISBN 978-1-4244-4072-6

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Low-Power, High-Speed Transceivers for Network on Chip Communication

Schinkel, D., Mensink, E., Klumperink, E.A.M., Tuijl, A.J.M. Van , Nauta, B. IEEE transactions on Very Large Scale Integrations (VLSI) Systems, January 2009, vol 17, nr 1, pp 12-21 (ISBN 1063-8210)

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Digitally Enhanced Software-Defined Radio Receiver Robust to Out of Band Interference

Ru, Z., Moseley, N. A., Klumperink, E.A.M., Nauta, B. Special issue of the IEEE Journal of Solid-State Circuits on ISSCC 2009, vol.44, no.12, pp.3359-3375, Dec. 2009

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A 400-to-900 MHz Receiver with Dual-domain Harmonic Rejection Exploiting Adaptive Interference Cancellation

Moseley, N.A., Ru, Z., Klumperink, E.A.M., Nauta, B.2009 IEEE International Solid-State Circuits Conference (ISSCC) Digest of Technical Papers, pp. 232-233, Feb. 2009

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Publications in 2008

A 2.5 Gb/s Run-Length-Tolerant Burst-Mode CDR Based on a 1/8th-Rate Dual Pulse Ring Oscillator

Gierkink, S.L.J. IEEE Journal of Solid-State Circuits, Vol. 43, No. 8, Aug. 2008, pp. 1763-1771

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A 1V 15.6mW 1-2GHz -119dBc/Hz @ 200kHz clock multiplying DLL

S.L.J. Gierkink Proceedings of the 2008 CICC, Sept. 2008

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Wideband CMOS Receivers exploiting Simultaneous Output Balancing and NoiseDistortion Canceling

Blaakmeer, S.C., Klumperink, E.A.M., Leenaerts, D.M.W., Nauta, B. Invited paper for the focussed session on "Linear Receiver Techniques" of the European Microwave Integrated Circuit Conference (EuMIC), October 27-29, pg. 163-166, Amsterdam 2008

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Wideband Balun-LNA With Simultaneous Output Balancing, Noise-Canceling and Distortion-Canceling

Blaakmeer, S.C., Klumperink, E.A.M., Leenaerts, D.M.W., Nauta, B., IEEE Journal of Solid-State Circuits, vol.43, no.6, pp.1341-1350, June 2008

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Experimental Verification of a Harmonic-Rejection Mixing Concept using Blind Interference Canceling

Moseley, N. A., Klumperink, E.A.M., Nauta, B.2008 European Wireless Technology Conference (euWIT), 27-28 October, Amsterdam, The Netherlands, ISBN 978-2-87487-005-7

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A Wideband Balun LNA IQ-Mixer combination in 65nm CMOS

Blaakmeer, S.C., Klumperink, E.A.M., Leenaerts, D.M.W., Nauta, B.2008 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, February 8-12, Digest of Technical Papers, pp. 326-327+617, 2008, ISBN 978-1-4244-2011-7

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A Two-Stage Approach to Harmonic Rejection Mixing Using Blind Interference Cancellation

Moseley, N.A., Klumperink, E.A.M., Nauta, B. IEEE Transactions on Circuits and Systems II: Express Briefs, Volume 55, Issue 10, pg.:966- 970, Oct. 2008

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A Spectrum Sensing Technique for Cognitive Radios in the Presence of Harmonic Images

Moseley, N. A., Klumperink, E.A.M., Nauta, B. 2008 IEEE Dynamic Spectrum Access Networks Conference (DySPAN), 14-17 October, Chicago, USA

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A 90µW 12MHz Relaxation Oscillator with a -162 dB FOM

Geraedts, P.F.J., Tuijl, A.J.M. van , Klumperink, E.A.M., Wienk, G.J.M., Nauta, B. 2008 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, February 8-12, Digest of Technical Papers, pp. 348-349+618, 2008, ISBN 978-1-4244-2011-7

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A 1.35 GSs, 10 b, 175 mW Time-Interleaved AD in 0.13 um CMOS

Simon M. Louwsma, A. J. M. van Tuijl, Maarten Vertregt and Bram Nauta. IEEE Journal of Solid-State Circuits (JSSC), Volume 43, Issue 4, Pages: 778 - 786, April 2008

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The BLIXER, a Wideband Balun-LNA-I/Q-Mixer Topology

Stephan C. Blaakmeer, Member, IEEE, Eric A. M. Klumperink, Senior Member, IEEE, Domine M. W. Leenaerts, Fellow, IEEE, and Bram Nauta, Fellow, IEEE

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A 1.9µW 4.4fJ Conversion-step 10b 1MSs charge redistribution ADC

Michiel van Elzakker 1,2, Ed van Tuijl 1,3, Paul Geraedts 1, Daniel Schinkel 1,3, Eric Klumperink 1, Bram Nauta 1

1 University of Twente, Enschede, Netherlands
2 Philips Research, Eindhoven, Netherlands
3 Axiom IC, Enschede, Netherlands

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Publications in 2007

Optimal Positions of Twists in Global On-Chip Differential Interconnects

Mensink, E., Schinkel, D., Klumperink, E.A.M., Tuijl, A.J.M. van , Nauta, B. IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Vol.15, Iss.4, April 2007, Pages:438-446, ISSN: 1063-8210

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Cognitive radios for dynamic spectrum access - Polyphase Multipath Radio Circuits for Dynamic Spectrum Access

Klumperink, E.A.M., Shrestha, R., Mensink, E., Arkesteijn, V.J., Nauta, B. IEEE Communications Magazine, Volume 45, Issue 5, May 2007 Pages 104 – 112

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Double-Tail Latch-Type Voltage Sense Amplifier With 18ps Setup+Hold Time

Schinkel, D., Mensink, E., Klumperink, E.A.M., Tuijl, A.J.M. van , Nauta, B. 2007 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, February 11-15, Digest of Technical Papers, pp. 314-315, 2007, ISBN Softbound 1-4244-0852-0

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A 0.28pJ/b 2Gb/s/ch Transceiver in 90nm CMOS for 10mm On-Chip Interconnects

Mensink, E., Schinkel, D., Klumperink, E.A.M., Tuijl, A.J.M. van , Nauta, B. 2007 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, February 11-15, Digest of Technical Papers, pp. 414-415, 2007, ISBN Softbound 1-4244-0852-0

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A 1.35 GS/s, 10b, 175 mW Time-Interleaved AD Converter in 0.13 µm CMOS

Louwsma, S.M., Tuijl, A.J.M. van , Vertregt, M., Nauta, B. 2007 Symposium on VLSI Circuits, Kyoto, Japan. pp 62-63, ISBN 978-4-900784-04-8

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A Time-Interleaved Track & Hold in 0.13µm CMOS sub-sampling a 4 GHz Signal with 43dB SNDR

Louwsma, S.M., Tuijl, A.J.M. van , Vertregt, M., Nauta, B. Proceedings of the IEEE 2007 Custom Integrated Circuits Conference (CICC) IEEE Catalog Number: 07CH37853 ISBN: 1-4244-1623-X

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An Inductorless Wideband Balun-LNA in 65nm CMOS with balanced output

Blaakmeer, S.C., Klumperink, E.A.M., Leenaerts, D.M.W., Nauta, B. In proceedings of the 33rd European Solid-State Circuits Conference (Munchen, Germany) , pp. 364 - 367, Sept. 2007. ISBN: 1-4244-1125-4 ISSN: 1930-8833 IEEE Catalog Number: 07EX1747

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