Two high accuracy CMOS RC oscillators with different trimming approach

摘要：

Two high-accuracy RC Oscillators with different trimming control are demonstrated in this paper. The two oscillators use voltage trimming and current trimming respectively. The experiment results, obtained from the circuits fabricated in 0.5 μm CMOS process indicate the IC oscillators provide a 160KHz clock signal with a frequency spread of ±10％ before the trimming. After centering the oscillator at the target frequency, the circuit has the accuracy of ±1.7％ frequency variation for voltage trimming method and ±1.9％ frequency variation for current trimming method from -20℃ to 80 ℃. The chip areas are 120 μm * 13 5 μm for voltage trimming and 115 μm * 110 μm for current trimming. The oscillator with voltage trimming has been successfully used in consumer electronic products.

作者: Li Jiang Weisheng Xu Zhiyu Xu

作者单位: School of Electronics and Information, Tongji University Research Institute of Semicondutor and Information, Tongji University, Shanghai, 201804, China

会议类型: 国际会议

会议名称: 2010 10th IEEE International Conference on Solid-State and Integrated Circuit Technology(第十届固态和集成电路技术国际会议 ICSICT-2010)

会议地点: 上海

会议语种:英文

页码: 376-378

在线出版日期: 2010-11-01（万方平台首次上网日期，不代表论文的发表时间）