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A digital-to-analog converter based on differential-quad switching

A high-conversion-rate high-resolution oversampling digital-to-analog converter (DAC) for direct digital modulation is addressed in this paper. A new type of switching scheme, called differential-quad switching, is presented. To verify the feasibility of this scheme, essential parts with some auxili...

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Published in:	IEEE journal of solid-state circuits 2002-10, Vol.37 (10), p.1335-1338
Main Authors:	Park, Sungkyung, Kim, Gyudong, Park, Sin-Chong, Kim, Wonchan
Format:	Article
Language:	English
Subjects:	Circuits Clocks CMOS CMOS technology Degradation Digital modulation Digital to analog converters Digital-analog conversion Electric potential Frequency conversion Modulation Oversampling Signal resolution Space vector pulse width modulation Switches Switching Voltage
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container_title	IEEE journal of solid-state circuits
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creator	Park, Sungkyung Kim, Gyudong Park, Sin-Chong Kim, Wonchan
description	A high-conversion-rate high-resolution oversampling digital-to-analog converter (DAC) for direct digital modulation is addressed in this paper. A new type of switching scheme, called differential-quad switching, is presented. To verify the feasibility of this scheme, essential parts with some auxiliary circuitry for interfacing were fabricated in a 0.8-/spl mu/m CMOS technology. Measured results show that the switching scheme provides 11-b resolution at 100 MSamples/s and 6-b at 1 GSamples/s. The degradation in signal-to-noise ratio is not observed for the variation of the supply voltage down to 1.5 V, which means the proposed scheme is suitable for low-voltage applications.
doi_str_mv	10.1109/JSSC.2002.803056
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source	IEEE Xplore (Online service)
subjects	Circuits Clocks CMOS CMOS technology Degradation Digital modulation Digital to analog converters Digital-analog conversion Electric potential Frequency conversion Modulation Oversampling Signal resolution Space vector pulse width modulation Switches Switching Voltage
title	A digital-to-analog converter based on differential-quad switching
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