JPS5754367A - Sample holding circuit - Google Patents

Sample holding circuit

Info

Publication number
JPS5754367A
JPS5754367A JP55129527A JP12952780A JPS5754367A JP S5754367 A JPS5754367 A JP S5754367A JP 55129527 A JP55129527 A JP 55129527A JP 12952780 A JP12952780 A JP 12952780A JP S5754367 A JPS5754367 A JP S5754367A
Authority
JP
Japan
Prior art keywords
transistor
voltage
base
sampling
emitter
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
JP55129527A
Other languages
Japanese (ja)
Other versions
JPS6231831B2 (en
Inventor
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 JP55129527A priority Critical patent/JPS5754367A/en
Publication of JPS5754367A publication Critical patent/JPS5754367A/en
Publication of JPS6231831B2 publication Critical patent/JPS6231831B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D48/00—Individual devices not covered by groups H10D1/00 - H10D44/00
    • H10D48/30—Devices controlled by electric currents or voltages
    • H10D48/32—Devices controlled by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H10D48/34—Bipolar devices
    • H10D48/345—Bipolar transistors having ohmic electrodes on emitter-like, base-like, and collector-like regions

Landscapes

  • Bipolar Integrated Circuits (AREA)
  • Bipolar Transistors (AREA)
  • Semiconductor Integrated Circuits (AREA)

Abstract

PURPOSE:To increase the holding function as well as to obtain the sample holding circuit with which the generation of abnormal pulse can be prevented by a method wherein the irregularity of time lag and the like of switching operation is eliminated. CONSTITUTION:In the case when the imput voltage for the sampling at this time is higher than that of the previous sampling, a capacitor 20 discharges electricity, through the intermediary of a transistor 30, until the base potential 30 drops from the emitter potential of a transistor 4 to the level of the forward voltage between the base and emitter of the transistor 30. In other words, the emitter potential of the transistor 4 or thereabouts is applied to the capacitor 2 when the sampling is performed. The On and OFF operation for the sampling is performed by the transistor 30 and a holding voltage higher than the withstand voltage between the emitter and base can be applied. Also, as regards the withstand voltage, the voltage up to the one existing between a collector C1 and a base can be used, and the subject circuit can be put to practical use at a value of several tens volts, because the transistor 30 has a lateral construction.
JP55129527A 1980-09-18 1980-09-18 Sample holding circuit Granted JPS5754367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55129527A JPS5754367A (en) 1980-09-18 1980-09-18 Sample holding circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55129527A JPS5754367A (en) 1980-09-18 1980-09-18 Sample holding circuit

Publications (2)

Publication Number Publication Date
JPS5754367A true JPS5754367A (en) 1982-03-31
JPS6231831B2 JPS6231831B2 (en) 1987-07-10

Family

ID=15011708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55129527A Granted JPS5754367A (en) 1980-09-18 1980-09-18 Sample holding circuit

Country Status (1)

Country Link
JP (1) JPS5754367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04279421A (en) * 1990-09-04 1992-10-05 Sara Lee De Nv Method and device vacuum packing up granular body

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0425129U (en) * 1990-06-26 1992-02-28

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49128681A (en) * 1973-04-07 1974-12-10
JPS5092086A (en) * 1973-12-10 1975-07-23
JPS5493250A (en) * 1977-12-29 1979-07-24 Sanden Corp Article storage portion for vending machine
JPS55103491U (en) * 1979-01-11 1980-07-19

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49128681A (en) * 1973-04-07 1974-12-10
JPS5092086A (en) * 1973-12-10 1975-07-23
JPS5493250A (en) * 1977-12-29 1979-07-24 Sanden Corp Article storage portion for vending machine
JPS55103491U (en) * 1979-01-11 1980-07-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04279421A (en) * 1990-09-04 1992-10-05 Sara Lee De Nv Method and device vacuum packing up granular body

Also Published As

Publication number Publication date
JPS6231831B2 (en) 1987-07-10

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