Abstract | ||
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A successive approximation analog-to-digital converter (ADC) architecture is presented that programs its comparator threshold at runtime to approximate the input signal via binary search. While targeting medium resolutions and speed, the threshold configuring (TC) ADC achieves low power consumption and small area occupation by using a fully dynamic configurable comparator and an asynchronous controller, with no need for a highly linear feedback D/A converter. The TC-ADC embeds its own references, and relies on a minimal amount of passive components or calibration loops. A 6-bit prototype implementation in 90-nm digital CMOS technology achieves 32-dB SNDR at 50 MS/s and consumes 240 μW from 1-V analog and 0.7-V digital supplies. This results in 150 fJ/conversion-step in a core area occupation of only 0.0055 mm . |
Year | DOI | Venue |
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2012 | 10.1109/TCSI.2011.2161368 | Circuits and Systems I: Regular Papers, IEEE Transactions |
Keywords | Field | DocType |
analog-to-digital converter architecture,fully dynamic configurable comparator,medium resolutions,low power consumption,word length 6 bit,analogue-digital conversion,digital cmos technology,asynchronous controller,comparators,successive approximation register,power 240 muw,threshold configurable comparator,configurable circuits,asynchronous logic circuits,sar adc,successive approximation,voltage 1 v,low-power analog integrated circuits,binary search,size 90 nm,passive components,comparators (circuits),cmos digital integrated circuits,comparator threshold,threshold programmable circuits,threshold configuring sar adc,voltage 0.7 v,analog-to-digital conversion,capacitors,cmos integrated circuits,capacitance,threshold voltage | Control theory,Comparator,Capacitor,Computer science,CMOS,Electronic engineering,Binary search algorithm,Successive approximation ADC,Electronic component,Threshold voltage | Journal |
Volume | Issue | ISSN |
59 | 1 | 1549-8328 |
ISBN | Citations | PageRank |
978-4-86348-001-8 | 20 | 1.43 |
References | Authors | |
20 | 6 |
Name | Order | Citations | PageRank |
---|---|---|---|
Pierluigi Nuzzo | 1 | 305 | 33.35 |
Claudio Nani | 2 | 49 | 5.65 |
Costantino Armiento | 3 | 20 | 1.43 |
Alberto L. Sangiovanni-Vincentelli | 4 | 11385 | 1881.40 |
Jan Craninckx | 5 | 756 | 181.43 |
G. Van der Plas | 6 | 328 | 35.68 |