Differential amplification circuit and semiconductor integrated circuit
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United States of America Patent
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Apr 24, 2018
Issued Date -
N/A
app pub date -
Feb 19, 2015
filing date -
Mar 31, 2014
priority date (Note) -
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Abstract
A differential amplification circuit includes: a first transistor and a second transistor of a differential pair; first and second loads; current sources; and a resistor circuit, wherein the resistor circuit includes: a coarse adjustment part and a fine adjustment part, one of the coarse adjustment part and the fine adjustment part includes a first lateral adjustment part and a second lateral adjustment part which have the same configuration, the first lateral adjustment part and the second lateral adjustment part are connected symmetrically to both sides of a central adjustment part, and the central adjustment part has a circuit configuration symmetrical with respect to two connection nodes with the first lateral adjustment part and the second lateral adjustment part.
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