- Patent Title: Voltage divider circuit having at least two kinds of unit resistors
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Application No.: US14426209Application Date: 2013-08-13
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Publication No.: US09806605B2Publication Date: 2017-10-31
- Inventor: Kazuhiro Tsumura
- Applicant: SEIKO INSTRUMENTS INC.
- Applicant Address: JP
- Assignee: STI Semiconductor Corporation
- Current Assignee: STI Semiconductor Corporation
- Current Assignee Address: JP
- Agency: Adams & Wilks
- Priority: JP2012-202982 20120914
- International Application: PCT/JP2013/071885 WO 20130813
- International Announcement: WO2014/041950 WO 20140320
- Main IPC: H03H7/24
- IPC: H03H7/24 ; H02M3/06 ; H01C13/02 ; H01L27/08

Abstract:
Provided is a voltage divider circuit having a small area and good accuracy of a division ratio. Among a plurality of resistors of the voltage divider circuit, each of resistors having a large resistance value, that is, resistors (1/4R, 1/2R, 1R, 9R, 10R) having high required accuracy of ratio includes first unit resistors (5A) that have a first resistance value and are connected in series or connected in parallel to each other, and each of resistors having a small resistance value, that is, resistors (1/16R, 1/8R) having low required accuracy of ratio includes second unit resistors (5B) that have a second resistance value smaller than the first resistance value and are connected in parallel to each other.
Public/Granted literature
- US20150214836A1 VOLTAGE DIVIDER CIRCUIT Public/Granted day:2015-07-30
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