Abstract:
A novel technique for the digital background calibration of time-interleaved analog-to-digital converters is proposed. The technique corrects at the same time for both er...Show MoreMetadata
Abstract:
A novel technique for the digital background calibration of time-interleaved analog-to-digital converters is proposed. The technique corrects at the same time for both errors due to gain, offset and timing mismatches among the time-interleaved channels and errors due to nonlinearities in the channels, for instance due to capacitor mismatches in switched capacitor implementations. This feature, together with the use of the recursive least mean squares algorithm, makes the technique particularly fast (12 bits of accuracy can be achieved after about 4000 samples for a two-channel converter). The proposed calibration technique employs wideband differentiators, thus enabling digital background calibration of timing skews even with wideband input signals. Besides, undersampled differentiator filters are proposed, and it is shown that the technique is capable of calibrating undersampling converters by estimating the derivative of wideband input signals even outside the first Nyquist band.
Published in: IEEE Transactions on Circuits and Systems I: Regular Papers ( Volume: 59, Issue: 7, July 2012)
Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Università di Roma La Sapienza, Roma, Italy
Francesco Centurelli (S'94–M'95) received the Laurea degree (cum laude) and the Ph.D. degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy, in 1995 and 2000, respectively.
He is currently an Assistant Professor with the Electronic Engineering Department of the University of Roma “La Sapienza.” His present research interests include design of very low-voltage circuits for analog and RF app...Show More
Francesco Centurelli (S'94–M'95) received the Laurea degree (cum laude) and the Ph.D. degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy, in 1995 and 2000, respectively.
He is currently an Assistant Professor with the Electronic Engineering Department of the University of Roma “La Sapienza.” His present research interests include design of very low-voltage circuits for analog and RF app...View more
Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Università di Roma La Sapienza, Roma, Italy
Pietro Monsurrò was born in 1979. He got the Laurea Specialistica (M.Sc.) degree with honors and the Ph.D. degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy, in 2004 and 2008, respectively.
He is currently a Research Fellow at the Department of Electronic Engineering of the University of Rome “La Sapienza.” His research activity has been focused on the analysis of low-voltage circuit t...Show More
Pietro Monsurrò was born in 1979. He got the Laurea Specialistica (M.Sc.) degree with honors and the Ph.D. degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy, in 2004 and 2008, respectively.
He is currently a Research Fellow at the Department of Electronic Engineering of the University of Rome “La Sapienza.” His research activity has been focused on the analysis of low-voltage circuit t...View more
Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Università di Roma La Sapienza, Roma, Italy
Alessandro Trifiletti was born in 1959 in Roma, Italy. He received the Laurea degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy.
In 1991, he joined the Electronic Engineering Department of the University of Roma “La Sapienza” as a Research Assistant and is currently an Associate Professor. His research interests include high-speed circuit design techniques and III-V device modeling.
Alessandro Trifiletti was born in 1959 in Roma, Italy. He received the Laurea degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy.
In 1991, he joined the Electronic Engineering Department of the University of Roma “La Sapienza” as a Research Assistant and is currently an Associate Professor. His research interests include high-speed circuit design techniques and III-V device modeling.View more
Contents Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Università di Roma La Sapienza, Roma, Italy
Francesco Centurelli (S'94–M'95) received the Laurea degree (cum laude) and the Ph.D. degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy, in 1995 and 2000, respectively.
He is currently an Assistant Professor with the Electronic Engineering Department of the University of Roma “La Sapienza.” His present research interests include design of very low-voltage circuits for analog and RF applications, with particular emphasis on analog-to-digital converters, and system-level analysis and design of analog-to-digital converters and high-speed analog and mixed-signal integrated circuits.
Francesco Centurelli (S'94–M'95) received the Laurea degree (cum laude) and the Ph.D. degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy, in 1995 and 2000, respectively.
He is currently an Assistant Professor with the Electronic Engineering Department of the University of Roma “La Sapienza.” His present research interests include design of very low-voltage circuits for analog and RF applications, with particular emphasis on analog-to-digital converters, and system-level analysis and design of analog-to-digital converters and high-speed analog and mixed-signal integrated circuits.View more
Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Università di Roma La Sapienza, Roma, Italy
Pietro Monsurrò was born in 1979. He got the Laurea Specialistica (M.Sc.) degree with honors and the Ph.D. degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy, in 2004 and 2008, respectively.
He is currently a Research Fellow at the Department of Electronic Engineering of the University of Rome “La Sapienza.” His research activity has been focused on the analysis of low-voltage circuit topologies in CMOS technologies, for applications in pipeline analog-to-digital converters, on the study of digital calibration techniques for ADCs, and on the behavioral modeling of mixed-signal functional blocks.
Pietro Monsurrò was born in 1979. He got the Laurea Specialistica (M.Sc.) degree with honors and the Ph.D. degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy, in 2004 and 2008, respectively.
He is currently a Research Fellow at the Department of Electronic Engineering of the University of Rome “La Sapienza.” His research activity has been focused on the analysis of low-voltage circuit topologies in CMOS technologies, for applications in pipeline analog-to-digital converters, on the study of digital calibration techniques for ADCs, and on the behavioral modeling of mixed-signal functional blocks.View more
Dipartimento di Ingegneria dell'Informazione, Elettronica e Telecomunicazioni, Università di Roma La Sapienza, Roma, Italy
Alessandro Trifiletti was born in 1959 in Roma, Italy. He received the Laurea degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy.
In 1991, he joined the Electronic Engineering Department of the University of Roma “La Sapienza” as a Research Assistant and is currently an Associate Professor. His research interests include high-speed circuit design techniques and III-V device modeling.
Alessandro Trifiletti was born in 1959 in Roma, Italy. He received the Laurea degree in electronic engineering from the University of Roma “La Sapienza,” Roma, Italy.
In 1991, he joined the Electronic Engineering Department of the University of Roma “La Sapienza” as a Research Assistant and is currently an Associate Professor. His research interests include high-speed circuit design techniques and III-V device modeling.View more
