Bandgap reference circuit with beta-compensation
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United States of America Patent
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Feb 14, 2017
Grant Date -
Jan 28, 2016
app pub date -
Jul 28, 2014
filing date -
Jul 28, 2014
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Abstract
Described are apparatuses and methods for generating a temperature-stabilized reference voltage on a semiconductor chip. An apparatus may include a differential amplifier including a first input, a second input, and an output. The apparatus may further include a first bipolar junction transistor (BJT) coupled to the first input; a second BJT coupled to the second input; and beta compensation circuitry, coupled to the first BJT and the second BJT, to regulate a first collector current of the first BJT to be independent of a first current gain of the first BJT and a second collector current of the second BJT to be independent of a second current gain of the second BJT. Other embodiments may be described and/or claimed.
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