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- Kim, Jae Joon
- Circuits & Systems Design Lab.
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A Supply-Scalable Dual-Rate Dual-Mode DAC With an Adaptive Swing Control
- Author(s)
- Eom, Won-Jin, Kwon, Kihyun, Lee, Kwangmuk, Kim, Jae Joon
- Issued Date
- 2018-07
- Citation
- IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.65, no.7, pp.874
- Abstract
- This brief presents a dual-rate dual-mode power digital-to-analog converter (DAC) circuit to cover wide range of supply voltages. For various applications, it is designed to have dual conversion rate of Nyquist and oversampling in conventional current-steering DACs, and its output stage is implemented to support two kind modes of high-voltage and low-voltage. To achieve optimal performance of spurious-free dynamic range, the output swing is adaptively maximized depending on supply voltage levels. For feasibility of the proposed supply-scalable dual-rate dual-mode structure, a power DAC prototype is fabricated in a 0.18 mm bipolar CMOS DMOS process, and experimentally verified to provide normalized power efficiency of 81.5%.
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- ISSN
- 1549-7747
- Keyword (Author)
- Power digital-to-analog converter, dual rate, dual mode, adaptive swing control, current steering
- Keyword
- BIT, RESOLUTION
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