Sub-ppm per ℃ High Performance Voltage Reference
Date
2023-05
Authors
Gadogbe, Bryce
Major Professor
Geiger, Randall
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
Altmetrics
Abstract
A strategy for designing a high accuracy voltage reference operating at sub 1ppm/°C over a wide temperature range is introduced. The proposed design makes use of one of the popular and widely used bandgap voltage reference structures and the temperature ependence of the drain current of a single MOS transistor operating in subthreshold to build a sub-ppm/°C voltage reference. The effects of error sources which may affect the performance of the voltage reference are analyzed and minimized. Simulation results in the TSMC 180nm process show that the design can achieve temperature coefficients of less than 0.85ppm/°C across process corners and local random variations from -40°C to 125°C after trimming.
Series Number
Journal Issue
Is Version Of
Versions
Series
Academic or Administrative Unit
Type
creative component
Comments
Rights Statement
Copyright
2023