Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8953915 | Microelectronics Journal | 2018 | 6 Pages |
Abstract
This paper presents a novel CMOS voltage reference circuit named symmetric self-biased voltage reference (SSVR), which enables not only to discard the voltage headroom issue of a conventional constant-gm current source and the inevitable need of an extra bias in a modified constant-gm current source, but also to maintain stable bias voltages with strong tolerance against significant variations of power supply and temperature. Test chips of the SSVR were implemented by using a 0.11-μm CMOS process. Measured results demonstrate that the symmetric configuration of the proposed SSVR helps to achieve constant voltage references against the VDD variation from 0.7 to 1.2â¯V and the temperature variation from â15â¯Â°C to 125â¯Â°C. The fabricated chip consumes constant 18.5â¯Î¼A currents for 0.7â¯â¼â¯1.0-V supply voltages and its core occupies the area of 0.04â¯Ãâ¯0.047â¯mm2.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Hardware and Architecture
Authors
Minseon Park, Sung Min Park,