Title :
A 1V supply 50nV/√Hz noise PSD CMOS amplifier using noise reduction technique of autozeroing and chopper stabilization
Author :
Yoshida, Takeshi ; Masui, Yoshihiro ; Mashimo, Takayuki ; Sasaki, Mamoru ; Iwata, Atsushi
Author_Institution :
Graduate Sch. of Adv. Sci. of Matter, Hiroshima Univ., Japan
Abstract :
A low-noise CMOS amplifier operating at a low supply voltage is developed using the two noise reduction techniques of autozeroing and chopper stabilization. The proposed amplifier utilizes a feedback with virtual grounded input-switches and a multiple-output switched op-amp. The low-noise amplifier fabricated in a 0.18-μm CMOS technology achieved 50-nV/VHz input noise at 1-MHz chopping and 0.5-mW power consumption at 1-V supply voltage.
Keywords :
CMOS integrated circuits; choppers (circuits); operational amplifiers; stability; 0.18 micron; 1 MHz; 1 V; CMOS technology; PSD CMOS amplifier; autozeroing; chopper stabilization; low-noise amplifier; low-voltage operation; noise reduction technique; switched op-amp; Baseband; CMOS technology; Choppers; Circuits; Low voltage; Low-frequency noise; Low-noise amplifiers; Noise reduction; Operational amplifiers; Switches;
Conference_Titel :
VLSI Circuits, 2005. Digest of Technical Papers. 2005 Symposium on
Print_ISBN :
4-900784-01-X
DOI :
10.1109/VLSIC.2005.1469347
