A 1-ppm/°C voltage reference in the range of 0.73V–1.4V

Abstract

This paper is devoted to describe a voltage reference in which the reference voltage can be varied over a range, 0.73V to 1.4V with high stability. As an example, it has been shown through simulations that a voltage reference for 0.73V with a temperature stability of about 1 ppm/°C over the temperature range of 0 to 80°C is possible. Proposed voltage reference circuit is simulated using transistor models for 0.18-µm process.