JPS5550737A - Ad converter of sequential comparison type - Google Patents

Ad converter of sequential comparison type

Info

Publication number
JPS5550737A
JPS5550737A JP12263178A JP12263178A JPS5550737A JP S5550737 A JPS5550737 A JP S5550737A JP 12263178 A JP12263178 A JP 12263178A JP 12263178 A JP12263178 A JP 12263178A JP S5550737 A JPS5550737 A JP S5550737A
Authority
JP
Japan
Prior art keywords
reference voltage
output
circuit
stage
register
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
JP12263178A
Other languages
Japanese (ja)
Inventor
Akitoshi Kurata
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.)
KAWASAKI EREKUTORONIKA KK
Original Assignee
KAWASAKI EREKUTORONIKA KK
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 KAWASAKI EREKUTORONIKA KK filed Critical KAWASAKI EREKUTORONIKA KK
Priority to JP12263178A priority Critical patent/JPS5550737A/en
Publication of JPS5550737A publication Critical patent/JPS5550737A/en
Pending legal-status Critical Current

Links

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  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE: To enable to realize high speed and high accuracy, by producing the reference voltage in required number of digits every comparison step.
CONSTITUTION: When the first clock pulse CP is fed to the sequential control circuit 3 of register type, the output S1 of the 211 stage of the register "1", and when the first clear pulse CL"0" is absent, the output of the AND circuit 7 is "1" to set the switching element 6. The reference voltage of 211 is produced at the otput of the reference voltage circuit 4 and it is compared with 1 the analog signal input Vin. Next, if Vin is greater than this comparison level, the 211 stage of the register reads in the output of the comparator 1 at the second CP, S1 still remains at "1" and the output S2 at 210 stage is set to "1". While this, since the output of the circuit 7 is momentarily "0" with the second CL, the reference voltage is once cleared. By setting the element 6 corresponding to the 211 and 210, the reference voltage of 211 is newly generated and the reference voltage of 210 is superimposed on it.
COPYRIGHT: (C)1980,JPO&Japio
JP12263178A 1978-10-06 1978-10-06 Ad converter of sequential comparison type Pending JPS5550737A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12263178A JPS5550737A (en) 1978-10-06 1978-10-06 Ad converter of sequential comparison type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12263178A JPS5550737A (en) 1978-10-06 1978-10-06 Ad converter of sequential comparison type

Publications (1)

Publication Number Publication Date
JPS5550737A true JPS5550737A (en) 1980-04-12

Family

ID=14840742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12263178A Pending JPS5550737A (en) 1978-10-06 1978-10-06 Ad converter of sequential comparison type

Country Status (1)

Country Link
JP (1) JPS5550737A (en)

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