Guidelines for designing BJT amplifiers with low 1/f AM and PM noise.
IEEE Trans Ultrason Ferroelectr Freq Control
; 44(2): 335-43, 1997.
Article
en En
| MEDLINE
| ID: mdl-18244131
ABSTRACT
In this paper we discuss guidelines for designing linear bipolar junction transistor amplifiers with low 1/f amplitude modulation (AM) and phase modulation (PM) noise. These guidelines are derived from a new theory that relates AM and PM noise to transconductance fluctuations, junction capacitance fluctuations, and circuit architecture. We analyze the noise equations of each process for a common emitter (CE) amplifier and use the results to suggest amplifier designs that minimize the 1/f noise while providing other required attributes such as high gain. Although we use a CE amplifier as an example, the procedure applies to other configurations as well. Experimental noise results for several amplifier configurations are presented.
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Banco de datos:
MEDLINE
Tipo de estudio:
Guideline
Idioma:
En
Año:
1997
Tipo del documento:
Article