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AssigneeSony Corporation
InventorsYasuhide Shimizu, Hideyuki Katsuta, Yukitoshi Yamashita, Nobuhiko Yokoyama
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A differential amplifier has an in-phase input terminal to which an input signal is applied through a first switching unit, an anti-phase input terminal to which a reference signal is applied through a second switching unit, and a third switching unit between the in-phase and anti-phase input terminals. The potential difference between the in-phase and anti-phase input terminals is differentially amplified by setting the first and second switching units to be on and the third switching unit to be off. Also, the in-phase and anti-phase input terminals are short-circuited to have a high impedance by setting the first and second switching units to be off and the third switching unit to be on.
A differential amplifier having thereon an in-phase input terminal and an anti-phase input terminal, said differential amplifier comprising:
A two-stage amplifier having an offset-compressing function, comprising a prestage differential amplifier and a poststage differential amplifier, the prestage and poststage differential amplifiers being connected in series to each other,
An analog-to-digital converter comprising a plurality of amplifying means,
Dependencies are inferred from the claim text.