2015 Fiscal Year Final Research Report
Research on low power mixed signal LSI with novel quantizer
| Project/Area Number |
25420345
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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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 |
SAN HAO 東京都市大学, 知識工学部, 准教授 (30400774)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | ADC / アナログ集積回路 |
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| Outline of Final Research Achievements |
This research propose a novel mixed signal processing LSI of multi-bit ΔAD modulator for low power and high signal-to-noise-and distortion (SNDR) application. The integrators in the modulator are realized by ring amplifier without static current. Multi-bit quantizer and analog adder in the feedforward modulator is realized by a passive-adder embedded successive approximation register (SAR) analog-to-digital converter (ADC) which consists of capacitor array and a dynamic comparator. The dynamic comparator does not dissipate static power at all when a preamplifier is not used. Proposed modulator is fabricated in TSMC 90nm CMOS technology. Measurement results show the feasibility of proposed circuit architecture.
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| Free Research Field |
電子回路・集積回路設計技術
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