Title :
A low voltage low 1/f noise CMOS bandgap reference
Author :
Jiang, Yueming ; Lee, Edward K F
Author_Institution :
Alfred Mann Inst., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
For a low voltage bandgap reference design, there is a tradeoff between the supply voltage and the performance of the bandgap reference in terms of untrimmed accuracy and 1/f noise performance. In this paper, the application of chopper stabilizing technique is proposed to address this tradeoff. Over five times of improvement in untrimmed accuracy and 1/f noise performance were demonstrated through a low voltage bandgap reference fabricated in a 0.8 μm CMOS process.
Keywords :
1/f noise; CMOS integrated circuits; choppers (circuits); circuit stability; energy gap; integrated circuit design; integrated circuit measurement; integrated circuit noise; low-power electronics; reference circuits; 0.8 micron; 1/f noise performance; CMOS process; bandgap reference performance; chopper stabilizing technique; design tradeoff; low voltage bandgap reference design; low voltage low 1/f noise CMOS bandgap reference; supply voltage; untrimmed accuracy; Analog circuits; CMOS process; Choppers; Circuit noise; Equations; Low voltage; Photonic band gap; Rails; Resistors; Threshold voltage;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465477
