Cascode single-ended to differential converter
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United States of America Patent
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Jul 27, 1999
Grant Date -
N/A
app pub date -
Mar 20, 1997
filing date -
Mar 20, 1997
priority date (Note) -
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Abstract
A cascode single-ended to differential converter has particular applications for use in communication, e.g. RF circuits. The converter provides higher gain, reduced noise figure and improved output level and linearity over the prior art differential pair converter. The present converter is a transconductor, converting an input voltage to a differential current output signal, i.e., two output signals of different currents, with the difference being linear to the level of voltage. The cascode amplifier output signal is used to produce a signal equal in the amplitude but 180 degrees out of phase with the signal produced by the cascode amplifier.
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