A low-power, temperature and supply voltage compensated current starved ring oscillator

被引：6
作者：
Bako, Niko [1 ]
Baric, Adrijan [1 ]
机构：
[1] Univ Zagreb, Fac Elect Engn & Comp, Zagreb 10000, Croatia
来源：
MICROELECTRONICS JOURNAL | 2013年 / 44卷 / 12期
关键词：
Oscillator; Temperature compensated frequency; Supply voltage compensated frequency; Low-power;
D O I：
10.1016/j.mejo.2013.07.004
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A low-power, 3.82 MHz oscillator based on a feedback loop is presented. The oscillator does not need a stable current reference to obtain a stable frequency independent of voltage and temperature variations because of the usage of negative feedback. The frequency variation, in the temperature range from -20 degrees C to 80 degrees C, is +/- 0.6% and it depends only on the temperature coefficient of the resistor R, while the reference current variations are -11%/+25% in the same temperature range. The oscillator power consumption is 5.1 mu W and the active area is 0.09 mm(2). The proposed oscillator is implemented in a 0.18 mu m CMOS process and the simulation results are shown. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1154 / 1158
页数：5
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