A low voltage CMOS current source

被引：0
|
作者：
Schmitt, D
Fiez, TS
机构：
来源：
1997 INTERNATIONAL SYMPOSIUM ON LOW POWER ELECTRONICS AND DESIGN, PROCEEDINGS | 1997年
关键词：
D O I：
暂无
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 voltage current source is described that has a minimum input voltage of less than 0.1V and a minimum output voltage swing of 0.2V. Although this current source has an output voltage range equivalent to a simple current mirror, the output resistance is amplified by a feedback amplifier to produce an output resistance on the order of a cascode current source. The low voltage current source was fabricated in a 2 micron n-well CMOS process. The measured minimum output voltage is 0.2V and the measured output resistance is 11M Omega. Using this current source, a 1.8V folded-cascode op amp was designed. The simulated open loop gain pas 50dB with a nearly rail-to-rail output linear range.
引用
收藏
页码：110 / 113
页数：4
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