SUCCESSIVE APPROXIMATION A/D CONVERSION DEVICE, IMAGING APPARATUS, ENDOSCOPE AND SETTING METHOD

WIPO Patent Application WO/2018/116540

A1

The present invention provides a successive approximation A/D conversion device, an imaging apparatus, an endoscope and a setting method which are capable of preventing deterioration of the linearity of an output signal. A successive approximation A/D conversion device 27 is provided with: a capacity circuit 402 having a binary capacity for holding a pair of analog signals sampled by a sampling circuit 401; a comparison circuit 403 for comparing one signal and another signal that form a pair of voltage signals; a correction circuit 404 for outputting to the comparison circuit 403 the pair of voltage signals in which a parasitic capacity in an input transistor of the comparison circuit 403 has been offset; and a control circuit 405 for successively determining the value of each bit of a digital signal corresponding to the binary capacity by a binary search method, and reflecting the value of each bit of the digital signal in the reference signal.

JP2000013227	A/D CONVERTER
JPH0497300	VOICE RECOGNIZING DEVICE
JP2016010125	SIGNAL PROCESSOR, CONTROL METHOD, IMAGE PICK-UP DEVICE AND ELECTRONIC APPARATUS

HIRAIDE SHUZO (JP)
HARADA YASUNARI (JP)
OSAWA MASATO (JP)

PCT/JP2017/032169

June 28, 2018

September 06, 2017

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OLYMPUS CORP (JP)

H03M1/10; A61B1/045; H03M1/38; H04N5/378

WO2016170642A1

2016-10-27

JP2013526179A	2013-06-20
JP2003504912A	2003-02-04

SAKAI INTERNATIONAL PATENT OFFICE (JP)

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