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A 2.5V supply low noise CMOS amplifier using noise reduction technique of Chopper stabilization

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4 Author(s)
Yahyatabar, H. ; Electr. Eng. Dept., Islamic Azad Univ., Tehran, Iran ; Razaghian, F. ; Yahyavi, M. ; Nezhad, M.H.

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.

Published in:

ASIC (ASICON), 2011 IEEE 9th International Conference on

Date of Conference:

25-28 Oct. 2011

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