科研之友
微信
新浪微博
Facebook
分享链接
摘要
A simple automatic tuning circuit is proposed which is suitable for controlling very large channel resistance of weak-inverted transistors operated in the linear regime. The channel resistance for 1.2 M Omega nominal value presents about +/- 0.6% variation for -20-80 degrees C temperature range, +/- 5% variation at process/temperature (P/T) corners and total harmonic distortion = -42 dB for differential signals. The supply voltage was V-DD = 1 V and the current consumption was about 470 nA. The proposed concept and the performance were confirmed and evaluated by simulations using standard 0.35 mu m CMOS process.
- 出版日期2014-3-13
