學習工具
[電子] 運算放大器
The circuit is constructed by a operational amplifier and bipolar transistor current mirrors with multiple outputs.
該電路由一集成運算放大器及多端輸出的雙極晶體管電流鏡構成。
In the case of ideal operational amplifier, circuit analysis was simplified by the ideal summing point restraints of zero voltage and zero current at the inverting input.
對于理想的運算放大器而言，通過倒相輸入處零電壓和零電流的理想求和點限制，可以簡化電路分析過程。
This kind of operational amplifier has higher dynamic scope and has solved the problem that the signal amplitude gets limit by the bias voltage, and has higher bandwidth.
這種運算放大器具有較高的動态範圍，并解決了偏置電壓引起的信號擺幅受限的問題，而且具有更高的帶寬。
A Simple error analysis method for an operational amplifier is presented in this paper.
本文給出運算放大器誤差分析的一種統一的簡易方法。
Electrometer and nanovoltmeter characteristics differ, so the operational amplifier requirements for these two types of instruments are also somewhat different.
靜電計和納伏表的特性不同，所以這兩種儀器對運算放大器的要求也有所不同。
By analyzing the principle of compound operational amplifier, a high performance amplifier is designed by using two operational amplifiers, so an idea integrator is achieved.
分析了複合運放提高性能的原理，利用兩運算放大器設計了高性能複合放大器，以構成理想的積分電路。
Ultra low offset voltage operational amplifier.
超低失調電壓運算放大器。
There may be saturation in the differential circuit built with the operational amplifier(Op Amp), which causes that the relationship between input and output is not differential expression.
用運算放大器構造的微分電路可能存在飽和現象，導緻輸出與輸入電壓之間不滿足微分關系，使微分電路失去應有性能。
The design of single power operational amplifier is presented.
介紹了單電源運算放大器的設計方法。
Some teaching material treat that the integrated operational amplifier which makes up the voltage comparer only works in the nonlinear area.
在一些教材中論述，構成電壓比較器的集成運算放大器僅僅是工作在非線性區。
The silicon PV production figures show the laser intensity measuring instrument approach. This paper mainly involves operational amplifier and power supply, and other relevant knowledge.
介紹用矽光電池制作數字顯示的激光相對強度測量儀的方法，主要涉及運算放大器和穩壓電源等相關知識。
Typical analysis of the constant-current resistance and the output current error, The writer gives the analysing process by means of operational amplifier.
從恒流源内阻和形成輸出電流誤差兩個方面，給出用運算放大器構成壓控恒流源的分析結果。
An ideal operational amplifier has infinite input impedance, infinite gain for the differential input signal, zero gain for the common-mode input signal, zero output impedance, and infinite bandwidth.
理想的運算放大器具有無窮大的輸入阻抗、無窮大的差分輸入增益、零共模輸入增益、零輸出阻抗及無窮大的帶寬。
It consists of an operational amplifier (op-amp) and resistor feedback networks.
該放大器由運算放大器和電阻反饋網絡組成。
Using the characteristic of integrated operational amplifier, an electric bridge circuit sensor without nonlinear error in its output voltage is designed.
利用集成運算放大器的特點，設計了輸出電壓無非線性誤差的電橋電路傳感器。
High Speed, High Output Current, Dual Operational Amplifier.
高速，高輸出電流，雙路運算放大器。
Low Noise, Precision, High Speed Operational Amplifier.
低噪聲，高精度，高速運算放大器。
Detecting circuit consists of a fully differential operational amplifier and an instrument amplifier.
探測電路由全差分運算放大器和儀表放大器組成。
Quad high-speed, fast-settling, high output current operational amplifier.
四高速，快速穩定，高輸出電流運算放大器。
The principle figures of input stage middle gain stage and output stage for a usual two stage low-voltage CMOS operational amplifier and their principal performance are presented in the paper.
給出了一種常用兩級低電壓CMOS運算放大器的輸入級、中間增益級及輸出級的原理電路圖，并闡述其主要工作特性。
Dual, Wideband, High Output Current, Operational Amplifier with Current Limit.
雙路，寬帶，高輸出電流運算放大器的電流限制。
The paper designs a low voltage, micro power CMOS operational amplifier with rail-to-rail output.
完成了一個低壓微功耗CMOS軌至軌輸出運算放大器的研究設計。
High slew rate, wide bandwidth, single supply operational amplifier.
高轉換率，寬帶寬，單電源運算放大器。
Linear building block - quad low power operational amplifier.
線性構造塊-四低功耗運算放大器。
Several active stimulated inductors which are made of resistors, capacitors and integrated operational amplifier are researched.
研究了幾種用電阻、電容和集成運算放大器組成的有源模拟電感；
Author discusses wholly the treatments of three analytical techniques for linear operational amplifier circuits.
在此基礎上，系統地論述了線性運算放大器電路分析的三種方法。
High precision integrated circuit operational amplifier KD205 designed and developed by our factory is described in this paper.
本文介紹我廠設計和研制成功的高精度集成電路運算放大器KD205。
In circuit design, the mathematical model of operational amplifier expanded function is expanded circuit. The circuit includes phase electric capacity, the feedback resistance and the input impedance.
運算放大器擴展功能，在電子電路設計中其數學模型為放大電路，含移相電容、反饋電阻及輸入阻抗。
運算放大器（Operational Amplifier，簡稱Op-Amp）是一種高增益的直流耦合電壓放大器集成電路，具有差分輸入和單端輸出。其核心功能是對輸入電壓差進行放大，是模拟電子電路中最基礎且應用最廣泛的元件之一。以下是其詳細解釋：
高增益與差分輸入
運算放大器通常具備極高的開環電壓增益（可達 (10) 以上，即 (100 text{dB})），能将微小的差分輸入電壓（(V+ - V-)）放大為大幅輸出信號。理想運放模型包含以下特性：
虛短與虛斷概念
在負反饋配置下，運放通過以下原理簡化電路分析：
例如，反相放大器電路中，反饋電阻 (Rf) 與輸入電阻 (R{in}) 決定閉環增益 (A_v = -frac{Rf}{R{in}})。
增益與帶寬
輸入/輸出特性
基礎配置
高級功能電路
現代運放已發展出多種類型：
Operational Amplifier（運算放大器） 是一種高增益的電子電壓放大器，通常用于模拟電路中對信號進行放大、濾波、運算等操作。以下是詳細解釋：
運算放大器是模拟電路設計的核心元件，廣泛應用于信號處理、控制系統、傳感器接口等領域。其理想化模型簡化了電路分析，但實際設計需結合具體型號的參數（如LM741、OPA2134等）。
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