A Low-Power High-PSRR CMOS Voltage Reference with Active-Feedback Frequency Compensation for IoT Applications

Wang, Lidan1,2; Zhan, Chenchang1; He, Linjun1; Tang, Junyao1; Wang, Guanhua1; Liu, Yang1; Li, Guofeng2

10.1109/ISCAS.2018.8351808

2018

0271-4310

978-1-5386-4882-7

2018 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS)

2018-May

1-4

27-30 May 2018

Florence, Italy

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

A low-power CMOS voltage reference with active-feedback frequency compensation is proposed for power-constrained IoT applications whereby power supply ripple rejection (PSRR) performance is critical for the survival of the devices. The proposed voltage reference consists of MOS transistors operating in the sub-threshold region to allow for low-voltage and low-power operations. An active-feedback frequency compensation technique has been used to make the loop stable and improve the PSRR with a very small compensation capacitor while allowing a relatively large output capacitor. The circuit is fabricated in a standard 0.18-mu m CMOS process. The measured power consumption is 22nW at 0.7V power supply. The measured temperature coefficient (TC) is 38ppm/degrees C in a range from -40 to +110 degrees C, and the line regulation is 200 mu V/V in a supply voltage range of 0.7 similar to 2V. The measured PSRR at 10 Hz, 1 kHz, and 100 kHz is -64dB, -56dB, and -52dB, respectively. The active chip area is 0.04mm(2).

subthreshold CMOS voltage reference active-feedback frequency compensation power supply ripple rejeciton

第一 ; 通讯

英语

CPCI-S ; EI

SZSTI[JCYJ20160429191518358] ; SZSTI[JCYJ20160530191008447]

Engineering

Engineering, Electrical & Electronic

WOS:000451218704036

20184806146108

CMOS integrated circuits ; Internet of things ; Threshold voltage ; Voltage measurement

Electricity: Basic Concepts and Phenomena:701.1 ; Semiconductor Devices and Integrated Circuits:714.2 ; Computer Software, Data Handling and Applications:723 ; Control Systems:731.1 ; Electric Variables Measurements:942.2

Web of Science

1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen, Peoples R China
2.Nankai Univ, Coll Elect Informat & Opt Engn, Tianjin, Peoples R China

Wang, Lidan,Zhan, Chenchang,He, Linjun,et al. A Low-Power High-PSRR CMOS Voltage Reference with Active-Feedback Frequency Compensation for IoT Applications[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2018:1-4.