Title:
REFERENCE VOLTAGE CIRCUIT AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/039978
Kind Code:
A1
Abstract:
A reference voltage circuit (1) comprises: a PTAT voltage generation circuit (20) that generates a voltage having a positive temperature coefficient; a CTAT voltage generation circuit (10) that generates a voltage having a negative temperature coefficient; and a temperature characteristic adjustment circuit (30) that generates a voltage for adjusting temperature characteristics. The reference voltage circuit outputs a reference voltage (VOUT) that is formed by calculation based on an output of the PTAT voltage generation circuit, an output of the CTAT voltage generation circuit, and an output of the temperature characteristic adjustment circuit.
Inventors:
WATANABE HIROYUKI (JP)
Application Number:
PCT/JP2019/031619
Publication Date:
February 27, 2020
Filing Date:
August 09, 2019
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
G05F3/26
Foreign References:
| JP2003283258A | 2003-10-03 | |||
| JP2017126280A | 2017-07-20 | |||
| JP2009522661A | 2009-06-11 | |||
| JPH07193442A | 1995-07-28 |
Other References:
HIROSE, TETSUYA: "A CMOS Bandgap and Sub-Bandgap Voltage Reference Circuits for Nanowatt Power LSIs", IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE, November 2010 (2010-11-01), pages 77 - 80, XP031979899
Attorney, Agent or Firm:
YAMAMOTO Takahisa et al. (JP)
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