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A 2 GS/s Frequency-Folded ADC-Based Broadband Sampling Receiver | IEEE Journals & Magazine | IEEE Xplore

A 2 GS/s Frequency-Folded ADC-Based Broadband Sampling Receiver


Abstract:

A frequency-folded ADC-based broadband sampling receiver that merges sampling within the structure of a broadband downconverter is presented. The receiver channelizes a b...Show More

Abstract:

A frequency-folded ADC-based broadband sampling receiver that merges sampling within the structure of a broadband downconverter is presented. The receiver channelizes a broadband input into sub-bands after digitization, while employing digital-domain harmonic and image rejection. The design offers a frequency-domain approach to simultaneously achieving high sample rate and dynamic range per-unit power consumption. Noise and distortion performance of the architecture is described. An analysis of SNR improvement during signal reconstruction that results from the use of multiple paths at baseband is presented. A 2 GS/s receiver based on this approach is implemented in a 65 nm CMOS process. The receiver spans a bandwidth from 125 MHz to 1000 MHz, and achieves a mean SNDR of 49 dB across the input bandwidth, while providing 38-43.3 dB of gain and a NF of 8.5-13.4 dB. Equalization-based calibration results in harmonic and image rejection greater than 59 dB and 58 dB, respectively, across the input bandwidth, while even better performance may be achieved for tonal interferers. The receiver consumes 104 mW from a dual 1.2/2.5 V supply.
Published in: IEEE Journal of Solid-State Circuits ( Volume: 49, Issue: 9, September 2014)
Page(s): 1971 - 1983
Date of Publication: 08 July 2014

ISSN Information:

Author image of Travis Forbes
Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX
Travis Forbes (M'13) received B.S. degrees in electrical engineering and computer engineering from the University of Missouri, Columbia, MO, USA, and was a recipient of the Mizzou '39 award as one of the top 39 seniors at the university in 2009. He was awarded a National Science Foundation Graduate Research Fellowship in 2011 and received the M.S.E. and Ph.D. degrees in electrical engineering from the University of Texas ...Show More
Travis Forbes (M'13) received B.S. degrees in electrical engineering and computer engineering from the University of Missouri, Columbia, MO, USA, and was a recipient of the Mizzou '39 award as one of the top 39 seniors at the university in 2009. He was awarded a National Science Foundation Graduate Research Fellowship in 2011 and received the M.S.E. and Ph.D. degrees in electrical engineering from the University of Texas ...View more
Author image of Ranjit Gharpurey
Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX
Ranjit Gharpurey (M'95–SM'10) received the B.Tech. degree from the Indian Institute of Technology, Kharagpur, India, in 1990, and the M.S. and Ph.D. degrees from the University of California at Berkeley, CA, USA, in 1992 and 1995, respectively.
He is an Associate Professor in the Department of Electrical and Computer Engineering, University of Texas at Austin. He was an Assistant Professor with the Department of Electrical...Show More
Ranjit Gharpurey (M'95–SM'10) received the B.Tech. degree from the Indian Institute of Technology, Kharagpur, India, in 1990, and the M.S. and Ph.D. degrees from the University of California at Berkeley, CA, USA, in 1992 and 1995, respectively.
He is an Associate Professor in the Department of Electrical and Computer Engineering, University of Texas at Austin. He was an Assistant Professor with the Department of Electrical...View more

Author image of Travis Forbes
Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX
Travis Forbes (M'13) received B.S. degrees in electrical engineering and computer engineering from the University of Missouri, Columbia, MO, USA, and was a recipient of the Mizzou '39 award as one of the top 39 seniors at the university in 2009. He was awarded a National Science Foundation Graduate Research Fellowship in 2011 and received the M.S.E. and Ph.D. degrees in electrical engineering from the University of Texas at Austin, TX, USA, in 2012 and 2013, respectively.
He is currently a Senior RFIC Design Engineer with Nvidia, Richardson, TX, USA. His research interests include RF mixers and frequency translation techniques, broadband and software-defined radios, and high-speed mixed-signal integrated circuit techniques.
Travis Forbes (M'13) received B.S. degrees in electrical engineering and computer engineering from the University of Missouri, Columbia, MO, USA, and was a recipient of the Mizzou '39 award as one of the top 39 seniors at the university in 2009. He was awarded a National Science Foundation Graduate Research Fellowship in 2011 and received the M.S.E. and Ph.D. degrees in electrical engineering from the University of Texas at Austin, TX, USA, in 2012 and 2013, respectively.
He is currently a Senior RFIC Design Engineer with Nvidia, Richardson, TX, USA. His research interests include RF mixers and frequency translation techniques, broadband and software-defined radios, and high-speed mixed-signal integrated circuit techniques.View more
Author image of Ranjit Gharpurey
Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX
Ranjit Gharpurey (M'95–SM'10) received the B.Tech. degree from the Indian Institute of Technology, Kharagpur, India, in 1990, and the M.S. and Ph.D. degrees from the University of California at Berkeley, CA, USA, in 1992 and 1995, respectively.
He is an Associate Professor in the Department of Electrical and Computer Engineering, University of Texas at Austin. He was an Assistant Professor with the Department of Electrical Engineering and Computer Science at the University of Michigan, Ann Arbor, MI, USA, from 2003 to 2005, prior to which he was with Texas Instruments Incorporated, Dallas, TX, USA, from 1995 to 2003. His research interests are in analog circuit design, with emphasis on RF and wireless communication applications, low-power design techniques, and techniques for improving efficiency and dynamic range in analog circuits. He has numerous publications and patents in these areas.
Prof. Gharpurey was a corecipient of Best Student Paper Awards at the RFIC Symposium in 2008 (first place) and IEEE Sensors Conference in 2005 (second place). He is also a corecipient of the Best Paper Award from the IEEE Journal of Solid-State Circuits for 2008. He is currently on the TPC of RFIC Symposium. He has previously served as an Associate Editor of the IEEE Journal of Solid-State Circuits and IEEE Transactions on Circuits and Systems I, and on the TPC of ISSCC and CICC.
Ranjit Gharpurey (M'95–SM'10) received the B.Tech. degree from the Indian Institute of Technology, Kharagpur, India, in 1990, and the M.S. and Ph.D. degrees from the University of California at Berkeley, CA, USA, in 1992 and 1995, respectively.
He is an Associate Professor in the Department of Electrical and Computer Engineering, University of Texas at Austin. He was an Assistant Professor with the Department of Electrical Engineering and Computer Science at the University of Michigan, Ann Arbor, MI, USA, from 2003 to 2005, prior to which he was with Texas Instruments Incorporated, Dallas, TX, USA, from 1995 to 2003. His research interests are in analog circuit design, with emphasis on RF and wireless communication applications, low-power design techniques, and techniques for improving efficiency and dynamic range in analog circuits. He has numerous publications and patents in these areas.
Prof. Gharpurey was a corecipient of Best Student Paper Awards at the RFIC Symposium in 2008 (first place) and IEEE Sensors Conference in 2005 (second place). He is also a corecipient of the Best Paper Award from the IEEE Journal of Solid-State Circuits for 2008. He is currently on the TPC of RFIC Symposium. He has previously served as an Associate Editor of the IEEE Journal of Solid-State Circuits and IEEE Transactions on Circuits and Systems I, and on the TPC of ISSCC and CICC.View more

References

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