A Novel Low Line Regulation Voltage Reference with No Amplifier

作者：Li, Qiang Li; Deng, WanLing; Ma, Xiao Yu; Huang, JunKai^*

来源：Journal of Circuits, Systems, and Computers, 2018, 27(10): 1850152.

DOI：10.1142/S0218126618501529

• Analog CMOS
• voltage reference
• low line regulation
• temperature compensation

A novel low line regulation voltage reference (VR) without an amplifier is presented in this paper. The design is achieved by subtracting two voltages which have the same temperature curves. All circuits use only one Bipolar Junction Transistor (BJT) to decrease the area greatly. Designed with the SMIC 0.18 mu m CMOS process, the simulation results show that the output voltage is 0.902 V at TT process corner when the power supply is larger than 1.7 V. The temperature coefficient (TC) is 3.6 ppm/degrees C to 7.4 ppm/degrees C at different power supplies and process corners. The simulated power supply rejection ratio (PSRR) is -80 dB at TT process corner when the power supply is 2.5 V, and the PSRR at different process corners are almost the same. The line regulation of the proposed circuit is 0.005 mV/V.

• 出版日期2018-9
• 单位暨南大学