Ultra-low-power, high PSRR CMOS voltage reference with negative feedback

作者：Zeng, Yanhan^*; Li, Yuao; Zhang, Xin; Tan, Hong-Zhou

来源：IET Circuits Devices & Systems, 2017, 11(6): 535-542.

DOI：10.1049/iet-cds.2016.0452

• reference circuits
• CMOS integrated circuits
• low-power electronics
• circuit feedback
• ultra-low-power high PSRR CMOS voltage reference
• negative feedback technique
• complementary metal-oxide semiconductor
• low supply voltage
• high-power supply rejection ratio
• standard micrometre CMOS technology
• size 0
• 18 mum
• voltage 0
• 85 V to 2
• 5 V
• temperature-20 degC to 80 degC
• current 202 nA
• frequency 1 Hz
• frequency 1 kHz

Based on negative feedback technique, a complementary metal-oxide semiconductor (CMOS) voltage reference with ultra-low-power, low supply voltage and high-power supply rejection ratio (PSRR) is proposed and simulated using a 0.18 standard micrometre CMOS technology. The operating supply voltage ranges from 0.85V to 2.5V and the temperature ranges from -20 degrees C to 80 degrees C. The voltage reference can achieve a temperature coefficient of 16.3ppm/degrees C and line sensitivity as low as 0.086ppm/V, without the use of resistors or special devices, consuming 202nA current at 27 degrees C. Besides, the PSRR is only -113dB at 1 Hz, -64dB at 1kHz, respectively.

• 出版日期2017-11
• 单位广州大学; 中山大学