Title :
Analysis of A Bandgap Circuit DC Shift Caused by Substrate Noise Generated by Power Switches
Author :
Zheng, Iven ; Zhao, Hongwei ; Yang, Jian ; Li, Weiying ; Li, Waley ; Wei, Linpeng ; Wang, Chuanzheng
Author_Institution :
Technol. Solution Organ., Freescale Semicond. Ltd.
Abstract :
This paper discusses the impact of the substrate noise generated by power switches through common substrate in bandgap voltage reference circuits, which have NPNs as main elements. It also analyzes how substrate noise affects NPN device´s performance and then makes output reference voltage dc shifted in some types of bandgap circuit, which is a very fatal error in system. This analysis method of bandgap dc shift is suitable for other bandgap circuits in noisy substrate
Keywords :
circuit noise; reference circuits; NPN device´s performance; bandgap circuit dc shift; bandgap voltage reference circuits; power switches; substrate noise; Circuit noise; DC generators; Noise generators; Photonic band gap; Power generation; Power semiconductor switches; Resistors; Semiconductor device noise; Substrates; Voltage;
Conference_Titel :
Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0160-7
Electronic_ISBN :
1-4244-0161-5
DOI :
10.1109/ICSICT.2006.306404
