Title :
A 2.5V supply low noise CMOS amplifier using noise reduction technique of Chopper stabilization
Author :
Yahyatabar, Hossein ; Razaghian, Farhad ; Yahyavi, Mehran ; Nezhad, Mohsen Habib
Author_Institution :
Electr. Eng. Dept., Islamic Azad Univ., Tehran, Iran
Abstract :
In this paper, a low-noise CMOS amplifier operating at a 2.5 supply voltage is presented and developed by using the noise reduction technique chopper stabilization. Chopper stabilization is a technique used to reduce the effects of flicker noise and offset. The low-noise amplifier fabricated by a 0.18-μm CMOS technology was measured at 2.5 V performance of 5-nV/Sqrt(Hz) input noise at 1-KHz chopping frequency 1-nV/Sqrt(Hz) input noise at 3-KHz chopping frequency that is considerable compared to previous results.
Keywords :
CMOS integrated circuits; choppers (circuits); flicker noise; low noise amplifiers; chopper stabilization; flicker noise; frequency 1 kHz; frequency 3 kHz; low noise CMOS amplifier; noise reduction technique; size 0.18 mum; voltage 2.5 V; CMOS integrated circuits; Clocks; ISO standards; Indium phosphide; Instruments; Switches; Testing; CMOS; Chopper; flicker noise;
Conference_Titel :
ASIC (ASICON), 2011 IEEE 9th International Conference on
Conference_Location :
Xiamen
Print_ISBN :
978-1-61284-192-2
Electronic_ISBN :
2162-7541
DOI :
10.1109/ASICON.2011.6157333
