A 3mW, 250 Msamples/sec, 4-bit current-mode FLASH analog-to-digital converter

In this paper, we present a 4-bit FLASH A/D converter. The converter is based on a current mode comparator. In order to increase its sensitivity, the latch following the comparator is in an unstable state during the evaluation phase. The circuit is designed in a 0.18 /spl mu/m CMOS process, with a s...

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Bibliographic Details
Published in2003 46th Midwest Symposium on Circuits and Systems Vol. 1; pp. 1 - 4 Vol. 1
Main Authors Bonan, J., Aboushady, H., Louerat, M.M.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Analog-digital conversion
Circuit simulation
Clocks
Delay
Feedback
Latches
Metastasis
Mirrors
Modulation
Voltage
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Summary:In this paper, we present a 4-bit FLASH A/D converter. The converter is based on a current mode comparator. In order to increase its sensitivity, the latch following the comparator is in an unstable state during the evaluation phase. The circuit is designed in a 0.18 /spl mu/m CMOS process, with a supply voltage of 1.8V. Simulation results show that, with a power consumption of 3mW, the sampling frequency reaches 500 MHz.
ISBN:0780382943
9780780382947
ISSN:1548-3746
1558-3899
DOI:10.1109/MWSCAS.2003.1562204