2011 Fiscal Year Final Research Report
Study on high-precision Analog-to-digital, Digital-to-analog converters using self-correction technique
| Project/Area Number |
21560369
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Tokyo City University |
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Principal Investigator |
HOTTA Masao 東京都市大学, 知識工学部, 教授 (40409371)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 電子デバイス・集積回路 / AD変換器 / DA変換器 |
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| Research Abstract |
In order to achieve high-precision Successive Approximation Register AD converter(SAR-ADC), we proposed three conversion methods with conversion redundancy : the non-binary search algorithm using one comparator and the binary search algorithm using three or two reference voltages and three or two comparators. Effectiveness of these methods was shown from the results of simulations and measurements. Furthermore, possibility of realization of high-precision DA converter(DAC) with 18-bit accuracy was addressed by using error correction method with a chopper-type amplifier and a synchronous detection for binary-weighted current DAC.
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