JPS56125115A - Analog and digital converter - Google Patents

Analog and digital converter

Info

Publication number
JPS56125115A
JPS56125115A JP2875380A JP2875380A JPS56125115A JP S56125115 A JPS56125115 A JP S56125115A JP 2875380 A JP2875380 A JP 2875380A JP 2875380 A JP2875380 A JP 2875380A JP S56125115 A JPS56125115 A JP S56125115A
Authority
JP
Japan
Prior art keywords
bits
converters
output
converter
analog
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.)
Pending
Application number
JP2875380A
Other languages
Japanese (ja)
Inventor
Yoshitaka Ono
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2875380A priority Critical patent/JPS56125115A/en
Publication of JPS56125115A publication Critical patent/JPS56125115A/en
Pending 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
    • H03M1/18—Automatic control for modifying the range of signals the converter can handle, e.g. gain ranging

Abstract

PURPOSE:To make easy the extension of number of bits of A/D converter, by using a plurality of high speed A/D converters simple in the constitution comparatively and combining the amplifier which shifts the weight of digital bit by a multiple of 2<n> and the A/D converters. CONSTITUTION:After an analog signal voltage V is converted into a digital value Aj (where; j=4-15) in 12-bits at the 1st A/D converter 1 and the voltage V is amplified at an amplifier 3 with an amplification factor of 16, it is converted into a digital value Bj (where; j=0-11) in 12-bits at the 2nd A/D converter 2. The digital values Aj and Bj output at the converters 1 and 2 are fed to a switching circuit 4 so that an output Dj in 16-bits can be output at the output of a switching control circuit 4. Further, the extension of the number of bits of the A/D converters can be made easy with a simple circuit.
JP2875380A 1980-03-06 1980-03-06 Analog and digital converter Pending JPS56125115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2875380A JPS56125115A (en) 1980-03-06 1980-03-06 Analog and digital converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2875380A JPS56125115A (en) 1980-03-06 1980-03-06 Analog and digital converter

Publications (1)

Publication Number Publication Date
JPS56125115A true JPS56125115A (en) 1981-10-01

Family

ID=12257161

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2875380A Pending JPS56125115A (en) 1980-03-06 1980-03-06 Analog and digital converter

Country Status (1)

Country Link
JP (1) JPS56125115A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01241223A (en) * 1988-03-23 1989-09-26 Matsushita Electric Ind Co Ltd Analog/digital converter
WO1996015502A1 (en) * 1994-11-11 1996-05-23 Siemens Aktiengesellschaft Process for the rapid digital acquisition and processing of analogue measured values in a processor with restricted binary word length
US7995124B2 (en) * 2007-09-14 2011-08-09 Omnivision Technologies, Inc. Image sensor apparatus and method for improved dynamic range with multiple readout circuit paths

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01241223A (en) * 1988-03-23 1989-09-26 Matsushita Electric Ind Co Ltd Analog/digital converter
WO1996015502A1 (en) * 1994-11-11 1996-05-23 Siemens Aktiengesellschaft Process for the rapid digital acquisition and processing of analogue measured values in a processor with restricted binary word length
US7995124B2 (en) * 2007-09-14 2011-08-09 Omnivision Technologies, Inc. Image sensor apparatus and method for improved dynamic range with multiple readout circuit paths

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