JPS5798195A - Sample holding circuit - Google Patents

Sample holding circuit

Info

Publication number
JPS5798195A
JPS5798195A JP55171996A JP17199680A JPS5798195A JP S5798195 A JPS5798195 A JP S5798195A JP 55171996 A JP55171996 A JP 55171996A JP 17199680 A JP17199680 A JP 17199680A JP S5798195 A JPS5798195 A JP S5798195A
Authority
JP
Japan
Prior art keywords
sample holding
amplifier
high frequency
filter
switch
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
JP55171996A
Other languages
Japanese (ja)
Other versions
JPS6047678B2 (en
Inventor
Takahisa Nakayama
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP55171996A priority Critical patent/JPS6047678B2/en
Publication of JPS5798195A publication Critical patent/JPS5798195A/en
Publication of JPS6047678B2 publication Critical patent/JPS6047678B2/en
Expired 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

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

PURPOSE:To decrease a high frequency noise against a DC control voltage signal, and to satisfactorily hold the frequency stability of a sample holding circuit, by providing 2 loop filters for sample holding, and removing a high frequency noise. CONSTITUTION:A phase detecting output signal IN1 is sampled by a switch SW1 and a capacitor, and a sampling signal is outputted through a buffer amplifier IC1, a loop filter 1 and a buffer amplifier IC2. Between this switch SW1 and a resistance R3 connected to a positive input terminal of the amplifier IC1, the loop filter 1 for sample holding is connected, the phase detecting output signal is sampled by the switch SW1 and the capacitor C1 in the filter 1, and also high frequency is decreased by the filter 1. Also, the high frequency noise is decreased by inserting a loop filter 2 between the amplifier IC1 and the amplifier IC2.
JP55171996A 1980-12-08 1980-12-08 sample hold circuit Expired JPS6047678B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55171996A JPS6047678B2 (en) 1980-12-08 1980-12-08 sample hold circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55171996A JPS6047678B2 (en) 1980-12-08 1980-12-08 sample hold circuit

Publications (2)

Publication Number Publication Date
JPS5798195A true JPS5798195A (en) 1982-06-18
JPS6047678B2 JPS6047678B2 (en) 1985-10-23

Family

ID=15933588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55171996A Expired JPS6047678B2 (en) 1980-12-08 1980-12-08 sample hold circuit

Country Status (1)

Country Link
JP (1) JPS6047678B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57158097A (en) * 1981-03-25 1982-09-29 Nippon Telegr & Teleph Corp <Ntt> Sample holding circuit
JPS60154399A (en) * 1984-01-24 1985-08-14 Nippon Telegr & Teleph Corp <Ntt> Sample and hold circuit
JP2015138560A (en) * 2014-01-20 2015-07-30 株式会社デンソー Electronic device
EP3490148A3 (en) * 2017-11-28 2019-07-24 Aisin Seiki Kabushiki Kaisha Capacitance detecting device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57158097A (en) * 1981-03-25 1982-09-29 Nippon Telegr & Teleph Corp <Ntt> Sample holding circuit
JPS60154399A (en) * 1984-01-24 1985-08-14 Nippon Telegr & Teleph Corp <Ntt> Sample and hold circuit
JP2015138560A (en) * 2014-01-20 2015-07-30 株式会社デンソー Electronic device
EP3490148A3 (en) * 2017-11-28 2019-07-24 Aisin Seiki Kabushiki Kaisha Capacitance detecting device

Also Published As

Publication number Publication date
JPS6047678B2 (en) 1985-10-23

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