کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
446694 1443170 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A background calibration in pipelined ADCs
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
A background calibration in pipelined ADCs
چکیده انگلیسی

In this paper, a novel background calibration is presented. The proposed scheme continuously measures and digitally compensates conversion errors caused by residue amplifier nonlinearity. This scheme can be used to relax analog circuit requirements for high-precision residue amplifier, accordingly decreasing the power consumption and/or increasing sampling rates in pipelined ADCs. The proposed scheme employs a fifth-order polynomial to eliminate conversion errors. One unique feature of the proposed scheme is that a single pseudorandom sequence, pn, is exploited. The simulation results show that, using the proposed calibration technique, the signal-to-noise-and-distortion-ratio (SNDR) is improved from 40 to 66 dB and the spurious-free-dynamic-range (SFDR) is increased from 48 to 80 dB.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 67, Issue 8, August 2013, Pages 729–732
نویسندگان
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