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JPS57101420A - Overflow detection system for analog-to-digital converter - Google Patents

  • ️Thu Jun 24 1982

JPS57101420A - Overflow detection system for analog-to-digital converter - Google Patents

Overflow detection system for analog-to-digital converter

Info

Publication number
JPS57101420A
JPS57101420A JP17759380A JP17759380A JPS57101420A JP S57101420 A JPS57101420 A JP S57101420A JP 17759380 A JP17759380 A JP 17759380A JP 17759380 A JP17759380 A JP 17759380A JP S57101420 A JPS57101420 A JP S57101420A Authority
JP
Japan
Prior art keywords
weight
bit
value
resistor
analog
Prior art date
1980-12-16
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
JP17759380A
Other languages
Japanese (ja)
Other versions
JPS6159570B2 (en
Inventor
Hiroshi Takizawa
Keisuke Hoshino
Yoshiaki Kono
Kunio Nozawa
Hajime Kakehi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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.)
1980-12-16
Filing date
1980-12-16
Publication date
1982-06-24
1980-12-16 Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
1980-12-16 Priority to JP17759380A priority Critical patent/JPS57101420A/en
1982-06-24 Publication of JPS57101420A publication Critical patent/JPS57101420A/en
1986-12-17 Publication of JPS6159570B2 publication Critical patent/JPS6159570B2/ja
Status 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
    • H03M1/12—Analogue/digital converters
    • H03M1/34—Analogue value compared with reference values
    • H03M1/38—Analogue value compared with reference values sequentially only, e.g. successive approximation type
    • H03M1/46—Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter

Landscapes

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

Abstract

PURPOSE:To detect an overflow earlier, by setting a value of weight resistance at an arbitrary bit location in the weight resistor constituting a sequential comparison type A/D converter to a value different from a normal value. CONSTITUTION:In a weight resistance section 21, a switch S2' and a weight resistor R2' are provided at the 2nd from the lowest part and the value of the weight resistor R2' is determined equal to R1, i.e. R2'=R1. Further, R2=2R3, R3=2R4- is made sequentially and a form added with one bit is made as a whole. Thus, the bit of the first weight resistor R1 is at 1 and the bit of the 2nd weight resistor R2' is at 1, allowing to discriminate the overflow immediately.

JP17759380A 1980-12-16 1980-12-16 Overflow detection system for analog-to-digital converter Granted JPS57101420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17759380A JPS57101420A (en) 1980-12-16 1980-12-16 Overflow detection system for analog-to-digital converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17759380A JPS57101420A (en) 1980-12-16 1980-12-16 Overflow detection system for analog-to-digital converter

Publications (2)

Publication Number Publication Date
JPS57101420A true JPS57101420A (en) 1982-06-24
JPS6159570B2 JPS6159570B2 (en) 1986-12-17

Family

ID=16033699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17759380A Granted JPS57101420A (en) 1980-12-16 1980-12-16 Overflow detection system for analog-to-digital converter

Country Status (1)

Country Link
JP (1) JPS57101420A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6484922A (en) * 1987-09-25 1989-03-30 Nec Corp Sequential comparison type a/d converter

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0411961U (en) * 1990-05-23 1992-01-30
KR100475736B1 (en) * 2002-08-09 2005-03-10 삼성전자주식회사 Temperature sensor having shifting temperature detection circuit for use in high speed test and method for detecting shifting temperature

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5582538A (en) * 1978-12-15 1980-06-21 Victor Co Of Japan Ltd Non-linear ad conversion circuit
JPS55137723A (en) * 1979-04-16 1980-10-27 Yokogawa Hokushin Electric Corp Digital analogue converter

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5582538A (en) * 1978-12-15 1980-06-21 Victor Co Of Japan Ltd Non-linear ad conversion circuit
JPS55137723A (en) * 1979-04-16 1980-10-27 Yokogawa Hokushin Electric Corp Digital analogue converter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6484922A (en) * 1987-09-25 1989-03-30 Nec Corp Sequential comparison type a/d converter

Also Published As

Publication number Publication date
JPS6159570B2 (en) 1986-12-17

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