Name
Title | ||
|---|---|---|
An 8.6 ENOB 900MS/s time-interleaved 2b/cycle SAR ADC with a 1b/cycle reconfiguration for resolution enhancement |
Abstract | ||
|---|---|---|
By taking advantage of the merits of the low power consumption and hardware simplicity of SAR ADCs, 2b/cycle conversion structures in SAR ADCs have been actively studied in recent years for enhanced conversion rates and excellent FoM [1-3]. However, many error sources in the 2b/cycle SAR ADCs, such as mismatches between DACs and comparators, and the signal-dependent errors from comparators, namely kickback noise and offset, make it difficult to achieve high resolution. To date, pure 2b/cycle structures operating above hundreds of MS/s have shown a somewhat limited resolution with an ENOB lower than 7 at Nyquist rates [1,2]. As a derivation of the structure, a sub-ADC could be implemented using the 2b/cycle SAR ADC structure for high resolution as in [4], at the cost of increased circuit complexity and static current flow. In this work, we present a resolution-enhancing design technique for 2b/cycle SAR ADCs with negligible hardware overhead, while relieving the requirements for the aforementioned errors: Reconfiguration from a 2b/cycle structure to a normal 1b/cycle SAR ADC with error-correction capability achieves an 8.6 ENOB from a 9b ADC. |
Year | DOI | Venue |
|---|---|---|
2013 | 10.1109/ISSCC.2013.6487819 | ISSCC |
Keywords | Field | DocType |
signal-dependent errors,time-interleaved sar adc,synthetic aperture radar,nyquist rates,power consumption,hardware simplicity,analogue-digital conversion,comparators,static current flow,error-correction capability,enob,circuit complexity,resolution enhancement,fom,negligible hardware overhead | Flight dynamics (spacecraft),Comparator,Circuit complexity,Computer science,Synthetic aperture radar,Effective number of bits,Electronic engineering,Successive approximation ADC,Electrical engineering,Control reconfiguration,Offset (computer science) | Conference |
Volume | ISSN | ISBN |
56 | 0193-6530 | 978-1-4673-4515-6 |
Citations | PageRank | References |
9 | 1.77 | 6 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hyeok-Ki Hong | 1 | 64 | 8.23 |
| Hyun-Wook Kang | 2 | 65 | 7.86 |
| Ba-Ro-Saim Sung | 3 | 53 | 5.93 |
| Choong-hoon Lee | 4 | 39 | 5.81 |
| Michael Choi | 5 | 49 | 9.96 |
| Ho-Jin Park | 6 | 138 | 24.29 |
| Seung-Tak Ryu | 7 | 299 | 46.61 |