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JPS57127995A - Sample holding circuit - Google Patents

Sample holding circuit

Info

Publication number
JPS57127995A
JPS57127995A JP56012568A JP1256881A JPS57127995A JP S57127995 A JPS57127995 A JP S57127995A JP 56012568 A JP56012568 A JP 56012568A JP 1256881 A JP1256881 A JP 1256881A JP S57127995 A JPS57127995 A JP S57127995A
Authority
JP
Japan
Prior art keywords
sampling
circuit
sample holding
voltage
input
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
JP56012568A
Other languages
Japanese (ja)
Other versions
JPS6228519B2 (en
Inventor
Kazuhiro Maruno
Kiyoshi Nishimura
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.)
Rohm Co Ltd
Original Assignee
Rohm Co Ltd
Toyo Electronics Industry 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 Rohm Co Ltd, Toyo Electronics Industry Corp filed Critical Rohm Co Ltd
Priority to JP56012568A priority Critical patent/JPS57127995A/en
Publication of JPS57127995A publication Critical patent/JPS57127995A/en
Publication of JPS6228519B2 publication Critical patent/JPS6228519B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C27/00—Electric analogue stores, e.g. for storing instantaneous values
    • G11C27/02—Sample-and-hold arrangements
    • G11C27/024—Sample-and-hold arrangements using a capacitive memory element
    • G11C27/026—Sample-and-hold arrangements using a capacitive memory element associated with an amplifier

Landscapes

  • Analogue/Digital Conversion (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE:To achieve accurate point sampling, by stopping the sampling operation based on the coincidence between a sample holding voltage and an input signal voltage, omitting a CR time constant circuit and optimizing sampling pulse generating conditions. CONSTITUTION:A sampling forming a charge/discharge circuit to a holding capacitor 26 at sampling in response to a sampling pulse, and a comparator 40 which compares an input signal voltage VIN given to this circuit 24 with a sample holding voltage VH of the capacitor 26 and generates a coincidence signal when the sample holding voltage is within a given range including the input signal voltage, are provided. The coincidence signal of the comparator 40 and a sampling control input VS are given to a sampling pulse generating circuit 38 consisting of T-FF to generate the sampling pulse with the time width from the sampling control input to the coincidence signal input to be inputted to the circuit 24.
JP56012568A 1981-01-30 1981-01-30 Sample holding circuit Granted JPS57127995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56012568A JPS57127995A (en) 1981-01-30 1981-01-30 Sample holding circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56012568A JPS57127995A (en) 1981-01-30 1981-01-30 Sample holding circuit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP5209381A Division JPS57127328A (en) 1981-04-07 1981-04-07 Wind comparator

Publications (2)

Publication Number Publication Date
JPS57127995A true JPS57127995A (en) 1982-08-09
JPS6228519B2 JPS6228519B2 (en) 1987-06-20

Family

ID=11808952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56012568A Granted JPS57127995A (en) 1981-01-30 1981-01-30 Sample holding circuit

Country Status (1)

Country Link
JP (1) JPS57127995A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154699A (en) * 1981-03-03 1982-09-24 Tektronix Inc Sample-holding circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54109353A (en) * 1978-02-15 1979-08-27 Nec Corp Sample holding circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54109353A (en) * 1978-02-15 1979-08-27 Nec Corp Sample holding circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57154699A (en) * 1981-03-03 1982-09-24 Tektronix Inc Sample-holding circuit
JPS6153800B2 (en) * 1981-03-03 1986-11-19 Tektronix Inc

Also Published As

Publication number Publication date
JPS6228519B2 (en) 1987-06-20

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