JPS6430330A - A/d converter - Google Patents

A/d converter

Info

Publication number
JPS6430330A
JPS6430330A JP18728187A JP18728187A JPS6430330A JP S6430330 A JPS6430330 A JP S6430330A JP 18728187 A JP18728187 A JP 18728187A JP 18728187 A JP18728187 A JP 18728187A JP S6430330 A JPS6430330 A JP S6430330A
Authority
JP
Japan
Prior art keywords
converting means
range
equivalent
analog signal
input 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
JP18728187A
Other languages
Japanese (ja)
Inventor
Mitsuo Soneda
Takayuki Sasaki
Tetsuya Senda
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP18728187A priority Critical patent/JPS6430330A/en
Publication of JPS6430330A publication Critical patent/JPS6430330A/en
Pending legal-status Critical Current

Links

Landscapes

  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To reduce the total number of built-in comparators and to decrease a current noise by providing in parallel a first A/D converting means equivalent to the range of the dynamic range of an input analog signal and a second A/D converting means equivalent to a prescribed range. CONSTITUTION:A first A/D converting means 4a to supply reference voltages VH and VL equivalent to the total range of the dynamic range of an input analog signal VIN and at least a second A/D converting means 4b to supply reference voltages VM and VL equivalent to the prescribed range of the dynamic range of the input analog signal are provided. To the overflowing output of the A/D converting means 4b, the output digital signal of A/D converting means 4a and 4b is switched and removed (selector 8) and to respective high-order and low-order of the output digital signals of the the A/D converting means 4a and 4b, a prescribed adding bit is added (selector 8). Thus, the total number of built-in comparators Ca1-Ca255 and Cb1-Cb255 is reduced and the current noise is decreased.
JP18728187A 1987-07-27 1987-07-27 A/d converter Pending JPS6430330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18728187A JPS6430330A (en) 1987-07-27 1987-07-27 A/d converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18728187A JPS6430330A (en) 1987-07-27 1987-07-27 A/d converter

Publications (1)

Publication Number Publication Date
JPS6430330A true JPS6430330A (en) 1989-02-01

Family

ID=16203251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18728187A Pending JPS6430330A (en) 1987-07-27 1987-07-27 A/d converter

Country Status (1)

Country Link
JP (1) JPS6430330A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009296629A (en) * 2002-12-04 2009-12-17 Nxp Bv Non-linear distribution of voltage steps in flash-type a/d converters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009296629A (en) * 2002-12-04 2009-12-17 Nxp Bv Non-linear distribution of voltage steps in flash-type a/d converters

Similar Documents

Publication Publication Date Title
EP0351788A3 (en) Analog-to-digital converting system
AU8001387A (en) Active attenuation system with increased dynamic range
EP0249986A3 (en) Analog-to-digital converter
JPS57194625A (en) Digital to analog converter
EP0112180A3 (en) Analog to digital flash converter
EP0297503A3 (en) Oversampling a/d converter with two capacitor arrays
DE3277490D1 (en) Analog to digital converter
JPS6430330A (en) A/d converter
ES472202A1 (en) Reversible analog to digital converter with high precision
JPS57178417A (en) Digital to analog converting circuit
JPS5658323A (en) Analog-digital converter
JPS568922A (en) A-d converting circuit
JPS55151820A (en) Analog-digital converter
JPS5573134A (en) Analog/digital converter with check function
JPS6458125A (en) Digital analog converter
JPS5513583A (en) Analogue-digital converter circuit
JPS56147519A (en) Digital-to-analog converter
JPS6468129A (en) Analog digital converter
JPS57180230A (en) Analog-to-digital conversion circuit
JPS5686530A (en) Parallel type a/d converter
WO1988003728A3 (en) Improvements in or relating to signal processing
JPS648730A (en) Analog/digital converter
JPS57135521A (en) High-speed a-d converter
ES8601461A1 (en) Improvements introduced in signal converters (Machine-translation by Google Translate, not legally binding)
JPS56125115A (en) Analog and digital converter