Fully-integrated, power-efficient regulator and bandgap circuits for wireless-powered biomedical applications

Author

Zargham, Meysam ; Gulak, P. Glenn

Author_Institution

Sch. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada

fYear

2012

fDate

20-23 May 2012

Firstpage

2873

Lastpage

2876

Abstract

Design and Measurement results are presented for a fully integrated, linear, low-dropout regulator with a quiescent current of 12μA. The regulator is able to recover from full load steps with less than 10% change in the regulated voltage and in less than 2μs. The regulator reference is generated by a curvature-compensated bandgap reference. The reference uses only 9.8μA and has a temperature coefficient of 2.95-ppm/°C and can tolerate a wide range of input voltages from 3.2V to 8V with a line regulation of 160μV/V. These blocks are fabricated in 0.13μm CMOS process, do not require off-chip components and target power harvesting biomedical and lab-on-a-chip applications that require up to 5mA of current from a 3.3V supply.

Keywords

CMOS integrated circuits; controllers; integrated circuit design; lab-on-a-chip; prosthetics; CMOS; bandgap circuits; current 12 muA; current 5 mA; current 9.8 muA; curvature-compensated bandgap reference; fully-integrated regulator; lab-on-a-chip; linear regulator; low-dropout regulator; off-chip components; power harvesting biomedical; power-efficient regulator; size 0.13 mum; voltage 3.2 V to 8 V; wireless-powered biomedical; Biomedical measurements; CMOS integrated circuits; Current measurement; Photonic band gap; Regulators; Temperature measurement; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2012 IEEE International Symposium on

Conference_Location

Seoul

ISSN

0271-4302

Print_ISBN

978-1-4673-0218-0

Type

conf

DOI

10.1109/ISCAS.2012.6271913

Filename

6271913