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A wideband 6th order programmable bandpass DEM implementation for a Nyquist DAC
Date
2020
Abstract
This paper presents a 6th order programmable bandpass dynamic-element-matching (DEM) that shapes the static mismatch error of a Nyquist DAC for any choice of center-frequency. The mismatch error can be shaped over a narrow or wide band, and up to 20% of Fs depending on the target application. This work demonstrates that for a 12-bit Nyquist DAC (5T–7B), the lowest in-band SFDR and IMD3 is 88dB and 80dB respectively, for various configurations of the DEM. The DEM hardware is implemented onto a XILINX FPGA using the System-Generator for DSPTM tool with results obtained for 155MHz Fs.
Supervisor
Description
peer-reviewed
Publisher
IEEE Computer Society
Citation
2020 27th IEEE International Conference on Electronics, Circuits and Systems (ICECS) pp. 1-4
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Files
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Mehta_2020_Wideband.pdf
Adobe PDF, 1.26 MB
Funding code
Funding Information
Science Foundation Ireland (SFI)
Sustainable Development Goals
External Link
Type
Meetings and Proceedings
Rights
https://creativecommons.org/licenses/by-nc-sa/1.0/