JPS57123598A - Sample holding circuit - Google Patents

Sample holding circuit

Info

Publication number
JPS57123598A
JPS57123598A JP749381A JP749381A JPS57123598A JP S57123598 A JPS57123598 A JP S57123598A JP 749381 A JP749381 A JP 749381A JP 749381 A JP749381 A JP 749381A JP S57123598 A JPS57123598 A JP S57123598A
Authority
JP
Japan
Prior art keywords
signal
controlled
power consumption
source
sample holding
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
JP749381A
Other languages
Japanese (ja)
Inventor
Junpei Nakamura
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP749381A priority Critical patent/JPS57123598A/en
Publication of JPS57123598A publication Critical patent/JPS57123598A/en
Pending 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

Abstract

PURPOSE:To reduce power consumption by providing a switch element, controlled synchronizing with the horizontal synchronizing signal of a video signal, between an FET amplifying circuit and a power source. CONSTITUTION:The switching of a switch element 4 is controlled and the one- line analog signal, etc., of a video signal is sampled and held in a capacitor 5 to amplify and output the sampled and held voltage through an N type FET6 whose source is connected to a power source VDD through a resistance 7. When a P type FET8 is connected in series between the source of the FET6 and the powr source VDD and controlled by a horizontal synchronizing signal or a signal synchronizing with it, a current flows from the power source VDD at need to prevent unnecessary power consumption, reducing the power consumption of the sample holding circuit.
JP749381A 1981-01-21 1981-01-21 Sample holding circuit Pending JPS57123598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP749381A JPS57123598A (en) 1981-01-21 1981-01-21 Sample holding circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP749381A JPS57123598A (en) 1981-01-21 1981-01-21 Sample holding circuit

Publications (1)

Publication Number Publication Date
JPS57123598A true JPS57123598A (en) 1982-08-02

Family

ID=11667291

Family Applications (1)

Application Number Title Priority Date Filing Date
JP749381A Pending JPS57123598A (en) 1981-01-21 1981-01-21 Sample holding circuit

Country Status (1)

Country Link
JP (1) JPS57123598A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5648799A (en) * 1992-12-02 1997-07-15 Elonex I.P. Holdings, Ltd. Low-power-consumption monitor standby system
US5821924A (en) * 1992-09-04 1998-10-13 Elonex I.P. Holdings, Ltd. Computer peripherals low-power-consumption standby system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5821924A (en) * 1992-09-04 1998-10-13 Elonex I.P. Holdings, Ltd. Computer peripherals low-power-consumption standby system
US5648799A (en) * 1992-12-02 1997-07-15 Elonex I.P. Holdings, Ltd. Low-power-consumption monitor standby system
US5880719A (en) * 1992-12-02 1999-03-09 Eloney I.P. Holdings L.T.D. Low-power-consumption monitor standby system

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