Title :
An 11-bit 160-MS/s 1.35-V 10-mW D/A converter using automated device sizing system
Author :
Matsumoto, Osamu ; Harada, Wisashi ; Morimoto, Yasuo ; Kumamoto, Toshio ; Miki, Takahiro ; Hotta, Masao
Author_Institution :
Renesas Technol. Corp., Itami, Japan
Abstract :
This paper describes an automated device sizing system for current-steering D/A converters (DACs) and an 11-bit 160-MS/s DAC implemented using this system. Based on an analysis of harmonic distortion (or spurious) of the DAC, a circuit technique named one-Vgs switching has been newly developed for realizing high spurious free dynamic range (SFDR). The automated device sizing system has also been developed for quick retargeting of the current-steering DAC. The 11-bit 160-MS/s DAC has been designed using this system and fabricated in a 0.18-μm technology. It operates at 1.35-V power supply with 10-mW power consumption, 1.6-Vppd output swing, and 61-dB SFDR at fsig=10.2 MHz. Its active area is 0.22 mm2.
Keywords :
digital-analogue conversion; harmonic distortion; 0.18 micron; 1.35 V; 1.6 V; 10 mW; 11 bit; automated device sizing system; circuit technique; current-steering D/A converters; harmonic distortion analysis; one-Vgs switching; spurious free dynamic range; Calibration; Circuits; Cities and towns; Equations; Harmonic analysis; Harmonic distortion; Optimization methods; Power supplies; Switches; Voltage;
Conference_Titel :
Design Automation Conference, 2005. Proceedings of the ASP-DAC 2005. Asia and South Pacific
Print_ISBN :
0-7803-8736-8
DOI :
10.1109/ASPDAC.2005.1466467
