Distortion in bipolar transistor variable-gain amplifiers
Sansen, W.M.C.
Meyer, R.G.
This paper appears in: Solid-State Circuits, IEEE Journal of
Publication Date: Aug 1973
Volume: 8,
Issue: 4
On page(s): 275- 282
ISSN: 0018-9200
Current Version Published: 2003-01-06
Abstract
Wide-band variable-gain amplifiers consisting of bipolar junction transistors and exhibiting maximum gain larger than unity are considered. The mechanisms of distortion are analyzed at low and high frequencies. Approximate expressions for distortion are derived and give good agreement with computational results and measurements. The most common high-performance variable-gain circuit realizations are discussed and compared for distortion performance.
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