JPS57123729A - Reference-voltage supplying circuit - Google Patents

Reference-voltage supplying circuit

Info

Publication number
JPS57123729A
JPS57123729A JP792681A JP792681A JPS57123729A JP S57123729 A JPS57123729 A JP S57123729A JP 792681 A JP792681 A JP 792681A JP 792681 A JP792681 A JP 792681A JP S57123729 A JPS57123729 A JP S57123729A
Authority
JP
Japan
Prior art keywords
reference voltage
external reference
terminal
external
output terminal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP792681A
Other languages
Japanese (ja)
Other versions
JPH0362055B2 (en
Inventor
Kazuo Yamakido
Hiroyuki Kikuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Hitachi Ltd
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd, Nippon Telegraph and Telephone Corp filed Critical Hitachi Ltd
Priority to JP792681A priority Critical patent/JPS57123729A/en
Publication of JPS57123729A publication Critical patent/JPS57123729A/en
Publication of JPH0362055B2 publication Critical patent/JPH0362055B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To eliminate the need for a control terminal by selecting a reference voltage on the basis of the level of the reference voltage supplied from an external terminal. CONSTITUTION:An external reference voltage VEXT supplied to an external reference voltage input terminal 1 is discriminated on the basis of an input threshold voltage value VTH determined by an inverter circuit 21 to output lines 3 and 4 binary signals which have mutually complementary logical levels and switch analog switches 6 and 7 complementarily. When the external reference voltage vEXT is lower than the threshold voltage value VTH, a voltage having a value VINT is applied from an internal reference voltage source 5 to an output terminal 8. When not, the analog switch 6 is closed, so the external reference voltage source 5 to an output terminal 8. When not, the analog switch 6 is closed, so the external reference voltage is developed at the output terminal 8.
JP792681A 1981-01-23 1981-01-23 Reference-voltage supplying circuit Granted JPS57123729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP792681A JPS57123729A (en) 1981-01-23 1981-01-23 Reference-voltage supplying circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP792681A JPS57123729A (en) 1981-01-23 1981-01-23 Reference-voltage supplying circuit

Publications (2)

Publication Number Publication Date
JPS57123729A true JPS57123729A (en) 1982-08-02
JPH0362055B2 JPH0362055B2 (en) 1991-09-24

Family

ID=11679123

Family Applications (1)

Application Number Title Priority Date Filing Date
JP792681A Granted JPS57123729A (en) 1981-01-23 1981-01-23 Reference-voltage supplying circuit

Country Status (1)

Country Link
JP (1) JPS57123729A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4837092B2 (en) * 2006-05-18 2011-12-14 グラフィック パッケージング インターナショナル インコーポレイテッド Carton with liquid tight receptacle
US10737824B2 (en) 2016-11-14 2020-08-11 Graphic Packaging International, Llc Reconfigurable carton and package

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311934U (en) * 1976-07-13 1978-01-31

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311934B2 (en) * 1973-02-22 1978-04-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5311934U (en) * 1976-07-13 1978-01-31

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4837092B2 (en) * 2006-05-18 2011-12-14 グラフィック パッケージング インターナショナル インコーポレイテッド Carton with liquid tight receptacle
US10737824B2 (en) 2016-11-14 2020-08-11 Graphic Packaging International, Llc Reconfigurable carton and package

Also Published As

Publication number Publication date
JPH0362055B2 (en) 1991-09-24

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