A 0.5V 46.2ppm/degrees C CMOS Voltage Reference Based on Compensated Delta VTH with Wide Temperature Range and High PSRR

He, Linjun1; Zhan, Chenchang1; Nan, Yang1; Zhang, Ning1; Wang, Lidan1,2; Li, Guofeng2

2018

2472-467X

2018 16TH IEEE INTERNATIONAL NEW CIRCUITS AND SYSTEMS CONFERENCE (NEWCAS)

66-69

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

IEEE

This paper presents a CMOS voltage reference (CVR) with low power, high power supply ripple rejection (PSRR), and small area operating in a wide temperature range. The proposed circuit contains only MOSFETs biased in subthreshold region and operates based on compensated Delta VTH of two different-type transistors. Implemented in a standard 0.181im CMOS process, the measured reference voltage of the proposed CVR is 344 mV with standard deviation of only 2.89 mV and achieves an average TC of 46.2ppm/degrees C over a wide temperature range from -40 degrees C to 125 degrees C without individual chip-by-chip trimming The measured PSRR is-70 dB,-51 dB and-52 dB at 10 Hz, 100 kHz and 10 MHz, respectively. The measured line sensitivity (LS) is 0.25%/V while consuming 15.65nW at 0.5V supply. The active area is 0.019mm(2).

CMOS voltage reference (CVR) compensated Delta VTH wide temperature range resistorless nanowatt high PSRR

第一 ; 通讯

英语

CPCI-S

NSTC[61604067] ; NSTC[JCYJ20160429191518358] ; NSTC[JCYJ20160530191008447]

Engineering

Engineering, Electrical & Electronic

WOS:000458806300016

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

He, Linjun,Zhan, Chenchang,Nan, Yang,et al. A 0.5V 46.2ppm/degrees C CMOS Voltage Reference Based on Compensated Delta VTH with Wide Temperature Range and High PSRR[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2018:66-69.