一种0.18微米CMOS的低功率电流转向数模转换器

D. Mercer
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引用次数: 6

摘要

本文讨论了解决低功率电流转向数模转换器直流和交流失真性能的一些电路技术。该设计在1P4M 0.18微米CMOS工艺中提供14位分辨率和200 MSPS转换率,可选3.3伏兼容器件,同时在3.6至1.8伏的宽供电范围内工作。在1.8V工作时,功耗/转换率可低至0.17 mW/MSPS,在3.3V工作时可低至0.28 mW/MSPS。在50mhz输出频率下实现70db的SFDR。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A low power current steering digital to analog converter in 0.18 micron CMOS
This paper discusses a number of circuit techniques which address the DC and AC distortion performance of a low power current steering digital-to-analog converter design. The design provides 14 bit resolution and 200 MSPS conversion rate in a 1P4M 0.18 micron CMOS process, with optional 3.3 volt compatible devices, while operating over a wide 3.6 to 1.8 volt supply range. A power dissipation/conversion rate figure of merit of as low as 0.17 mW/MSPS was achieved for 1.8V operation and as low as 0.28 mW/MSPS at 3.3V. SFDR of 70 dB is achieved at a 50 MHz output frequency.
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