JPS6316711U - - Google Patents

Info

Publication number
JPS6316711U
JPS6316711U JP10997386U JP10997386U JPS6316711U JP S6316711 U JPS6316711 U JP S6316711U JP 10997386 U JP10997386 U JP 10997386U JP 10997386 U JP10997386 U JP 10997386U JP S6316711 U JPS6316711 U JP S6316711U
Authority
JP
Japan
Prior art keywords
preamplifier
changeover switch
voltage dividing
switching
gain
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
JP10997386U
Other languages
English (en)
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 filed Critical
Priority to JP10997386U priority Critical patent/JPS6316711U/ja
Publication of JPS6316711U publication Critical patent/JPS6316711U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Analogue/Digital Conversion (AREA)

Description

【図面の簡単な説明】
第1図は本考案の回路の一実施例の接続図、第
2図は従来の回路の一例の接続図である。 GC′……ゲイン切換回路、PA……プリアン
プ、S1,S2……切換スイツチ、r1〜r5…
…分圧器、A/D……アナログ・デイジタル変換
器。

Claims (1)

  1. 【実用新案登録請求の範囲】 非反転増幅器よりなるプリアンプの帰還回路に
    接続される分圧抵抗の分圧点を切換スイツチによ
    つて切換えることによりプリアンプのゲインを切
    換えるゲイン切換回路において、 前記プリアンプの出力端子に共通端子が接続さ
    れる第2の切換スイツチと、この第2の切換スイ
    ツチの切換によつて前記プリアンプの帰還回路に
    おいて前記分圧抵抗に直列に接続される抵抗素子
    とを設けたことを特徴とし、アナログ・デイジタ
    ル変換器の前段に接続されるゲイン切換回路。
JP10997386U 1986-07-17 1986-07-17 Pending JPS6316711U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10997386U JPS6316711U (ja) 1986-07-17 1986-07-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10997386U JPS6316711U (ja) 1986-07-17 1986-07-17

Publications (1)

Publication Number Publication Date
JPS6316711U true JPS6316711U (ja) 1988-02-03

Family

ID=30988572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10997386U Pending JPS6316711U (ja) 1986-07-17 1986-07-17

Country Status (1)

Country Link
JP (1) JPS6316711U (ja)

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