Title :
A new voltage reference topology based on subthreshold MOSFETs
Author :
Giustolisi, Gianluca ; Palumbo, Gaetano ; Criscione, Marcello ; Cutrì, Fulvio
Author_Institution :
Università di Catania, Catania, Italy
Abstract :
In this communication a new low-voltage low-power CMOS voltage reference independent of temperature is presented. It is based on subthreshold MOSFETs and on compensating a PTAT-based variable with the gate-source voltage of a subthreshold MOSFET. The circuit, designed with a standard 1.2-µm CMOS technology, exhibits a stable voltage of about 300 mV with a temperature coefficient of 87 ppm/°C in the range [0°, + 70°] which increases up to 288 ppm/°C in the range [- 40°, + 120°].
Conference_Titel :
Solid-State Circuits Conference, 2002. ESSCIRC 2002. Proceedings of the 28th European
Conference_Location :
Florence, Italy