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A highly-integrated CMOS analog baseband transceiver with 180MSPS 13b pipelined CMOS ADC and dual 12b DACs

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8 Author(s)
K. Gulati ; Engim Inc., Acton, MA, USA ; M. Peng ; A. Pulincherry ; C. Munoz
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The 180MSPS, 13b CMOS pipelined ADC of a transceiver is implemented without a dedicated track-and-hold stage and utilizes a front-end 2.5b stage with matched MDAC/comparator tracking circuits. The ADC demonstrates ENOB of 10.6b at 15MHz and 9.7b at 100MHz. It employs a low-jitter delay-lock loop for its phasing. The dual I/Q 12b 180MSPS DACs show over 62dB SFDR over the Nyquist band by utilizing a dynamic linearity enhancing architecture.

Published in:

Proceedings of the IEEE 2005 Custom Integrated Circuits Conference, 2005.

Date of Conference:

18-21 Sept. 2005