A NOVEL ULTRA-LOW POWER TWO-TERMINAL ZENER VOLTAGE REFERENCE

作者：Kok Chiang Liang^*; Siek Liter; Lim Wei Meng

来源：Journal of Circuits, Systems, and Computers, 2012, 21(6): 1240017.

DOI：10.1142/S0218126612400178

• Two terminals
• zener
• voltage reference
• ultra-low power

A novel ultra-low power two terminal zener voltage reference is designed and implemented. It realizes the concept of using sub-threshold region of the MOSFET to achieve a very low and stable output voltage within a two terminal circuit topology. This proposed voltage reference was fabricated with Global Foundries 0.18-mu m CMOS process, consuming only a very small die area of 0.0009 mm(2). Experimental results, carried out on five different silicon samples, explicitly show that it can yield a stable output voltage of 0.22 V at room temperature. It achieves an average temperature coefficient of 6.4 ppm/degrees C across a wide temperature range from 0 degrees C to 150 degrees C with a standard deviation of 2 ppm/degrees C. Furthermore, it achieves an ultra-low power consumption of 2 mu W. The load regulation is 20 mV/V. This simple and innovative two terminal device can be used to provide a very low and constant voltage difference between any two nodes in an analog circuit.

• 出版日期2012-10
• 单位南阳理工学院