JPS619911U

JPS619911U - operational amplifier

Info

Publication number: JPS619911U
Application number: JP9255984U
Authority: JP
Inventors: 茂守屋; 一彦小松; 豊樹北山; 竜浅井; 隆八木
Original assignee: 日本電信電話株式会社; 株式会社エー・アンド・デイ
Priority date: 1984-06-22
Filing date: 1984-06-22
Publication date: 1986-01-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の個別部品を用いた演算増幅器の回路構成
を示す図、第２図はその実体図、第３図は本考案の構造
を示す一実施例の回路図、第４図はその実体図、第５図
は第４図の断面図である。１・・・差動入力増幅器、２・・・負側出力増幅器、３
・・・伝達増幅器、４・・・正側出力増幅器、５・・・
負電源、６・・・正電源、７・・・負出力用トランジス
タ、８・・・正出力用トランジスタ、９・・・演算増幅
器の入力端子、１０・・・演算増幅器の出力端子、１１
・・・シールド部、Ｃ１〜Ｃ５・・・浮遊容量、■・・
・差動入力増幅器１への入力、■・・・差動入力増幅器
１の出力、■・・・負側出力増幅器２の出力、■・・・
伝達増幅器３の出力、■・・・正側出力増幅器４の出力
、■・・・演算増幅器の出力。Fig. 1 is a diagram showing the circuit configuration of a conventional operational amplifier using individual components, Fig. 2 is its actual diagram, Fig. 3 is a circuit diagram of an embodiment showing the structure of the present invention, and Fig. 4 is its diagram. The actual view, FIG. 5, is a sectional view of FIG. 4. 1... Differential input amplifier, 2... Negative side output amplifier, 3
... Transfer amplifier, 4... Positive side output amplifier, 5...
Negative power supply, 6... Positive power supply, 7... Transistor for negative output, 8... Transistor for positive output, 9... Input terminal of operational amplifier, 10... Output terminal of operational amplifier, 11
...Shield part, C1-C5... Stray capacitance, ■...
- Input to differential input amplifier 1, ■... Output of differential input amplifier 1, ■... Output of negative side output amplifier 2, ■...
Output of transfer amplifier 3, ■... Output of positive side output amplifier 4, ■... Output of operational amplifier.

Claims

[Scope of utility model registration request]

an input differential amplifier, a negative side output amplifier that receives the output of the input differential amplifier as an input and operates with the potential of the negative power supply as a reference potential, and a positive side output that inputs the output of the input differential amplifier via a transfer amplifier. In an operational amplifier having an operational amplifier, the positive side output amplifier operates with the output potential of the operational amplifier as a reference potential, and the circuit block that operates with the output potential of the operational amplifier as a reference potential. An operational amplifier characterized by having a shield section surrounded by an output potential of the operational amplifier.