Abstract:
A compact decision-error-tolerant 2b/cycle SAR ADC architecture is presented. Two DACs with different designated functions, SIG-DAC and REF-DAC, are implemented to make t...Show MoreMetadata
Abstract:
A compact decision-error-tolerant 2b/cycle SAR ADC architecture is presented. Two DACs with different designated functions, SIG-DAC and REF-DAC, are implemented to make the structure compact and to eliminate the sampling skew issue. Use of a nonbinary decision scheme with decision redundancies not only increases the ADC speed with a relaxed DAC settling requirement but also makes the performance robust to reference fluctuations and comparator offset variations. The proposed dynamic register and direct DAC control scheme enhance the conversion speed by minimizing logic delay in the SAR decision loop. The proposed comparator-error detection with digital error correction scheme enhances high-speed ADC performance. A prototype 7b ADC fabricated in a 45 nm CMOS process operates at a sampling rate of 1 GS/s under a 1.25 V supply while achieving a peak SNDR of 41.6 dB and maintaining an ENOB higher than 6 up to 1.3 GHz signal frequency. The FoM under a 1.25 V supply is an 80 fJ/conversion-step with a power consumption of 7.2 mW.
Published in: IEEE Journal of Solid-State Circuits ( Volume: 50, Issue: 2, February 2015)
KAIST, Department of Electrical Engineering, Daejeon, South Korea
Hyeok-Ki Hong received the B.S. in electrical engineering and IT business and M.S. degrees from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2010 and 2012, respectively. He is a Ph.D. candidate since 2012 at KAIST. His research interests include data converters and mixed-signal circuit design.
Hyeok-Ki Hong received the B.S. in electrical engineering and IT business and M.S. degrees from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2010 and 2012, respectively. He is a Ph.D. candidate since 2012 at KAIST. His research interests include data converters and mixed-signal circuit design.View more
KAIST, Department of Electrical Engineering, Daejeon, South Korea
Wan Kim received the B.S. degree (with honors) in electronic engineering from Inha University, Incheon, Korea, in 2008, and the M.S. degree in information and communications from Gwangju Institute of Science and Technology (GIST), Gwangju, Korea, in 2010. He is currently working toward the Ph.D. degree in electrical engineering at the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea. His research...Show More
Wan Kim received the B.S. degree (with honors) in electronic engineering from Inha University, Incheon, Korea, in 2008, and the M.S. degree in information and communications from Gwangju Institute of Science and Technology (GIST), Gwangju, Korea, in 2010. He is currently working toward the Ph.D. degree in electrical engineering at the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea. His research...View more
KAIST, Department of Electrical Engineering, Daejeon, South Korea
Hyun-Wook Kang received the B.S. degree in electrical engineering and computer sciences from the University of California, Berkeley, CA, USA, in 2011, and the M.S. degree in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2013, where he is currently working towards the Ph.D. degree. His research interests include power-efficient data converter designs.
Hyun-Wook Kang received the B.S. degree in electrical engineering and computer sciences from the University of California, Berkeley, CA, USA, in 2011, and the M.S. degree in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2013, where he is currently working towards the Ph.D. degree. His research interests include power-efficient data converter designs.View more
Samsung Electronics, System LSI, Yongin, South Korea
Sun-Jae Park received the B.S. and M.S. degrees in electronic engineering from Korea University, Seoul, Korea, in 2002 and 2004, respectively. From 2004, he was a Design Engineer with Samsung Electronics, Kiheung, Korea, working on mixed analog and digital integrated circuits. His research interests include high-speed, high-resolution data converters and low-voltage, low-power mixed-signal circuits design, digital TV anal...Show More
Sun-Jae Park received the B.S. and M.S. degrees in electronic engineering from Korea University, Seoul, Korea, in 2002 and 2004, respectively. From 2004, he was a Design Engineer with Samsung Electronics, Kiheung, Korea, working on mixed analog and digital integrated circuits. His research interests include high-speed, high-resolution data converters and low-voltage, low-power mixed-signal circuits design, digital TV anal...View more
Samsung Electronics, System LSI, Yongin, South Korea
Michael Choi received B.S.E.E. degree from the University of California, Irvine, in 1994 and M.S. and Ph.D. degrees in electrical engineering from the University of California, Los Angeles (UCLA), CA, USA, in 1998 and 2002, respectively.
He was with Connectcom Microsystems, Irvine, CA, USA, from 2001 to 2002 as Director of Engineering to develop transceivers for ONET/SDH transmission systems at OC-192 data rate. In 2003, h...Show More
Michael Choi received B.S.E.E. degree from the University of California, Irvine, in 1994 and M.S. and Ph.D. degrees in electrical engineering from the University of California, Los Angeles (UCLA), CA, USA, in 1998 and 2002, respectively.
He was with Connectcom Microsystems, Irvine, CA, USA, from 2001 to 2002 as Director of Engineering to develop transceivers for ONET/SDH transmission systems at OC-192 data rate. In 2003, h...View more
Samsung Electronics, System LSI, Yongin, South Korea
Ho-Jin Park received the B.S. degree in electrical engineering from Hanyang University, Seoul, Korea, in 1986.
He has been with Samsung Electronics Co., Ltd., Yongin, Korea, since 1989, where he is a Vice President and is in charge of the Mixed Signal Core Design Team. He was engaged in the research and development of analog and mixed circuits. His research interests are in the field of high-speed data converters, high-res...Show More
Ho-Jin Park received the B.S. degree in electrical engineering from Hanyang University, Seoul, Korea, in 1986.
He has been with Samsung Electronics Co., Ltd., Yongin, Korea, since 1989, where he is a Vice President and is in charge of the Mixed Signal Core Design Team. He was engaged in the research and development of analog and mixed circuits. His research interests are in the field of high-speed data converters, high-res...View more
KAIST, Department of Electrical Engineering, Daejeon, South Korea
Seung-Tak Ryu (M'06–SM'13) received the B.S. degree in electrical engineering from Kyungpook National University, Korea, in 1997, and the M.S. and Ph.D. degrees from Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 1999 and 2004, respectively.
From 2001 to 2002, he was with University of California, San Diego, CA, USA, as a visiting researcher sponsored through the Brain Korea 21 (BK21) progra...Show More
Seung-Tak Ryu (M'06–SM'13) received the B.S. degree in electrical engineering from Kyungpook National University, Korea, in 1997, and the M.S. and Ph.D. degrees from Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 1999 and 2004, respectively.
From 2001 to 2002, he was with University of California, San Diego, CA, USA, as a visiting researcher sponsored through the Brain Korea 21 (BK21) progra...View more
Contents KAIST, Department of Electrical Engineering, Daejeon, South Korea
Hyeok-Ki Hong received the B.S. in electrical engineering and IT business and M.S. degrees from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2010 and 2012, respectively. He is a Ph.D. candidate since 2012 at KAIST. His research interests include data converters and mixed-signal circuit design.
Hyeok-Ki Hong received the B.S. in electrical engineering and IT business and M.S. degrees from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2010 and 2012, respectively. He is a Ph.D. candidate since 2012 at KAIST. His research interests include data converters and mixed-signal circuit design.View more
KAIST, Department of Electrical Engineering, Daejeon, South Korea
Wan Kim received the B.S. degree (with honors) in electronic engineering from Inha University, Incheon, Korea, in 2008, and the M.S. degree in information and communications from Gwangju Institute of Science and Technology (GIST), Gwangju, Korea, in 2010. He is currently working toward the Ph.D. degree in electrical engineering at the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea. His research interests include digital calibration techniques for high-resolution data converters and low-power mixed-signal circuits design.
Wan Kim received the B.S. degree (with honors) in electronic engineering from Inha University, Incheon, Korea, in 2008, and the M.S. degree in information and communications from Gwangju Institute of Science and Technology (GIST), Gwangju, Korea, in 2010. He is currently working toward the Ph.D. degree in electrical engineering at the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea. His research interests include digital calibration techniques for high-resolution data converters and low-power mixed-signal circuits design.View more
KAIST, Department of Electrical Engineering, Daejeon, South Korea
Hyun-Wook Kang received the B.S. degree in electrical engineering and computer sciences from the University of California, Berkeley, CA, USA, in 2011, and the M.S. degree in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2013, where he is currently working towards the Ph.D. degree. His research interests include power-efficient data converter designs.
Hyun-Wook Kang received the B.S. degree in electrical engineering and computer sciences from the University of California, Berkeley, CA, USA, in 2011, and the M.S. degree in electrical engineering from the Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 2013, where he is currently working towards the Ph.D. degree. His research interests include power-efficient data converter designs.View more
Samsung Electronics, System LSI, Yongin, South Korea
Sun-Jae Park received the B.S. and M.S. degrees in electronic engineering from Korea University, Seoul, Korea, in 2002 and 2004, respectively. From 2004, he was a Design Engineer with Samsung Electronics, Kiheung, Korea, working on mixed analog and digital integrated circuits. His research interests include high-speed, high-resolution data converters and low-voltage, low-power mixed-signal circuits design, digital TV analog front-end and CMOS image sensor.
Sun-Jae Park received the B.S. and M.S. degrees in electronic engineering from Korea University, Seoul, Korea, in 2002 and 2004, respectively. From 2004, he was a Design Engineer with Samsung Electronics, Kiheung, Korea, working on mixed analog and digital integrated circuits. His research interests include high-speed, high-resolution data converters and low-voltage, low-power mixed-signal circuits design, digital TV analog front-end and CMOS image sensor.View more
Samsung Electronics, System LSI, Yongin, South Korea
Michael Choi received B.S.E.E. degree from the University of California, Irvine, in 1994 and M.S. and Ph.D. degrees in electrical engineering from the University of California, Los Angeles (UCLA), CA, USA, in 1998 and 2002, respectively.
He was with Connectcom Microsystems, Irvine, CA, USA, from 2001 to 2002 as Director of Engineering to develop transceivers for ONET/SDH transmission systems at OC-192 data rate. In 2003, he joined Teranetics, Santa Clara, CA, USA, as Senior Engineer to develop high-speed A/D converter for 10 GBase-T application. In 2004, he joined Wilinx, Los Angeles, CA, USA, as Director of Engineering and developed high-speed A/D, D/A converters, and Ultra Wideband Transceiver. Since 2006, he has been with Samsung Electronics, Kiheung, Korea. His research interests include various A/D and D/A converters, touch sensor analog front-end, digital TV analog front-end, and CMOS image sensor.
Michael Choi received B.S.E.E. degree from the University of California, Irvine, in 1994 and M.S. and Ph.D. degrees in electrical engineering from the University of California, Los Angeles (UCLA), CA, USA, in 1998 and 2002, respectively.
He was with Connectcom Microsystems, Irvine, CA, USA, from 2001 to 2002 as Director of Engineering to develop transceivers for ONET/SDH transmission systems at OC-192 data rate. In 2003, he joined Teranetics, Santa Clara, CA, USA, as Senior Engineer to develop high-speed A/D converter for 10 GBase-T application. In 2004, he joined Wilinx, Los Angeles, CA, USA, as Director of Engineering and developed high-speed A/D, D/A converters, and Ultra Wideband Transceiver. Since 2006, he has been with Samsung Electronics, Kiheung, Korea. His research interests include various A/D and D/A converters, touch sensor analog front-end, digital TV analog front-end, and CMOS image sensor.View more
Samsung Electronics, System LSI, Yongin, South Korea
Ho-Jin Park received the B.S. degree in electrical engineering from Hanyang University, Seoul, Korea, in 1986.
He has been with Samsung Electronics Co., Ltd., Yongin, Korea, since 1989, where he is a Vice President and is in charge of the Mixed Signal Core Design Team. He was engaged in the research and development of analog and mixed circuits. His research interests are in the field of high-speed data converters, high-resolution sigma-delta modulators, ultra-low-power analog circuits, low-jitter phase-locked loops, all-digital phase-locked loops, thermal and power management circuits, sensors, and analog baseband front-end circuits for wireless communications.
Ho-Jin Park received the B.S. degree in electrical engineering from Hanyang University, Seoul, Korea, in 1986.
He has been with Samsung Electronics Co., Ltd., Yongin, Korea, since 1989, where he is a Vice President and is in charge of the Mixed Signal Core Design Team. He was engaged in the research and development of analog and mixed circuits. His research interests are in the field of high-speed data converters, high-resolution sigma-delta modulators, ultra-low-power analog circuits, low-jitter phase-locked loops, all-digital phase-locked loops, thermal and power management circuits, sensors, and analog baseband front-end circuits for wireless communications.View more
KAIST, Department of Electrical Engineering, Daejeon, South Korea
Seung-Tak Ryu (M'06–SM'13) received the B.S. degree in electrical engineering from Kyungpook National University, Korea, in 1997, and the M.S. and Ph.D. degrees from Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 1999 and 2004, respectively.
From 2001 to 2002, he was with University of California, San Diego, CA, USA, as a visiting researcher sponsored through the Brain Korea 21 (BK21) program. In 2004, he joined Samsung Electronics, Kiheung, Korea, where he was involved in mixed-signal IP design. From 2007 to 2009, he was with the Information and Communications University (ICU), Daejeon, Korea, as an Assistant Professor. He has been with the Department of Electrical Engineering, KAIST, Daejeon, Korea, since 2009, where he is currently an Associate Professor. His research interests include analog and mixed-signal IC design with an emphasis on data converters.
Prof. Ryu has been serving on the Technical Program Committees of the IEEE International Solid-State Circuits Conference (ISSCC) since 2014 and Asian Solid-State Circuits Conference (A-SSCC) since 2011.
Seung-Tak Ryu (M'06–SM'13) received the B.S. degree in electrical engineering from Kyungpook National University, Korea, in 1997, and the M.S. and Ph.D. degrees from Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Korea, in 1999 and 2004, respectively.
From 2001 to 2002, he was with University of California, San Diego, CA, USA, as a visiting researcher sponsored through the Brain Korea 21 (BK21) program. In 2004, he joined Samsung Electronics, Kiheung, Korea, where he was involved in mixed-signal IP design. From 2007 to 2009, he was with the Information and Communications University (ICU), Daejeon, Korea, as an Assistant Professor. He has been with the Department of Electrical Engineering, KAIST, Daejeon, Korea, since 2009, where he is currently an Associate Professor. His research interests include analog and mixed-signal IC design with an emphasis on data converters.
Prof. Ryu has been serving on the Technical Program Committees of the IEEE International Solid-State Circuits Conference (ISSCC) since 2014 and Asian Solid-State Circuits Conference (A-SSCC) since 2011.View more
