Open AccessDesign of a new voltage reference source
Author(s) -
Xiaojiang Li,
Qunfeng Huang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1827/1/012024
Subject(s) - voltage reference , voltage , correctness , computer science , process (computing) , mesh analysis , voltage source , voltage divider , set (abstract data type) , electronic engineering , electronic circuit , electrical engineering , dropout voltage , engineering , algorithm , programming language , operating system
Current reference is a very important module in analog circuits. The main purpose of this design is to provide a stable reference voltage for a switch magnetism-sensing circuit. Because of the inherent characteristics of the circuit, the reference voltage is set to 3.3V. In this paper, the reference voltage source is designed to have a wide input range, a stable output and a good temperature characteristic. In this paper, the simulation results of the reference voltage and the complete design layout are described, and a current reference is achieved, which is independent of process, voltage and temperature, with little area increases only. The simulation results based on a 4 μm 25 V bipolar process verify the correctness of the theoretical analysis and the feasibility of the proposed methods.