Design methods for CMOS low-current finely tunable voltage references covering a wide output range

Author

Rioux, S. ; Lacourse, A. ; Savaria, Yvon ; Meunier, M.

Author_Institution

LTRIM Technol. Inc., Laval, Que., Canada

fYear

2005

fDate

23-26 May 2005

Firstpage

4257

Abstract

This paper introduces methods that were used to design a 0.25 μm CMOS low-current tight-tolerance shunt voltage reference circuit. It shows how a recently reported method to produce laser tuned diffused resistors can be applied to the design of continuously tunable voltage references. The methods are validated with a prototype integrated circuit. Measured results show that the output voltage is continuously tunable, from 1.241V to 2.048V, at 0.05% accuracy. The design occupies 0.43 mm² and has a quiescent current of 10 μA.

Keywords

CMOS integrated circuits; circuit tuning; low-power electronics; reference circuits; resistors; 0.25 micron; 1.241 to 2.048 V; 10 muA; CMOS low-current voltage references; continuously tunable voltage references; finely tunable voltage references; laser tuned diffused resistors; output range; prototype integrated circuit; tight-tolerance shunt voltage reference circuit; Design methodology; Integrated circuit measurements; Laser tuning; Optical design; Photonic band gap; Prototypes; Resistors; Temperature; Tunable circuits and devices; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Print_ISBN

0-7803-8834-8

Type

conf

DOI

10.1109/ISCAS.2005.1465571

Filename

1465571