[电子] 运算放大器
The circuit is constructed by a operational amplifier and bipolar transistor current mirrors with multiple outputs.
该电路由一集成运算放大器及多端输出的双极晶体管电流镜构成。
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.
对于理想的运算放大器而言，通过倒相输入处零电压和零电流的理想求和点限制，可以简化电路分析过程。
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.
这种运算放大器具有较高的动态范围，并解决了偏置电压引起的信号摆幅受限的问题，而且具有更高的带宽。
A Simple error analysis method for an operational amplifier is presented in this paper.
本文给出运算放大器误差分析的一种统一的简易方法。
Electrometer and nanovoltmeter characteristics differ, so the operational amplifier requirements for these two types of instruments are also somewhat different.
静电计和纳伏表的特性不同，所以这两种仪器对运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.
分析了复合运放提高性能的原理，利用两运算放大器设计了高性能复合放大器，以构成理想的积分电路。
Ultra low offset voltage operational amplifier.
超低失调电压运算放大器。
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.
用运算放大器构造的微分电路可能存在饱和现象，导致输出与输入电压之间不满足微分关系，使微分电路失去应有性能。
The design of single power operational amplifier is presented.
介绍了单电源运算放大器的设计方法。
Some teaching material treat that the integrated operational amplifier which makes up the voltage comparer only works in the nonlinear area.
在一些教材中论述，构成电压比较器的集成运算放大器仅仅是工作在非线性区。
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.
介绍用硅光电池制作数字显示的激光相对强度测量仪的方法，主要涉及运算放大器和稳压电源等相关知识。
Typical analysis of the constant-current resistance and the output current error, The writer gives the analysing process by means of operational amplifier.
从恒流源内阻和形成输出电流误差两个方面，给出用运算放大器构成压控恒流源的分析结果。
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.
理想的运算放大器具有无穷大的输入阻抗、无穷大的差分输入增益、零共模输入增益、零输出阻抗及无穷大的带宽。
It consists of an operational amplifier (op-amp) and resistor feedback networks.
该放大器由运算放大器和电阻反馈网络组成。
Using the characteristic of integrated operational amplifier, an electric bridge circuit sensor without nonlinear error in its output voltage is designed.
利用集成运算放大器的特点，设计了输出电压无非线性误差的电桥电路传感器。
High Speed, High Output Current, Dual Operational Amplifier.
高速，高输出电流，双路运算放大器。
Low Noise, Precision, High Speed Operational Amplifier.
低噪声，高精度，高速运算放大器。
Detecting circuit consists of a fully differential operational amplifier and an instrument amplifier.
探测电路由全差分运算放大器和仪表放大器组成。
Quad high-speed, fast-settling, high output current operational amplifier.
四高速，快速稳定，高输出电流运算放大器。
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.
给出了一种常用两级低电压CMOS运算放大器的输入级、中间增益级及输出级的原理电路图，并阐述其主要工作特性。
Dual, Wideband, High Output Current, Operational Amplifier with Current Limit.
双路，宽带，高输出电流运算放大器的电流限制。
The paper designs a low voltage, micro power CMOS operational amplifier with rail-to-rail output.
完成了一个低压微功耗CMOS轨至轨输出运算放大器的研究设计。
High slew rate, wide bandwidth, single supply operational amplifier.
高转换率，宽带宽，单电源运算放大器。
Linear building block - quad low power operational amplifier.
线性构造块-四低功耗运算放大器。
Several active stimulated inductors which are made of resistors, capacitors and integrated operational amplifier are researched.
研究了几种用电阻、电容和集成运算放大器组成的有源模拟电感；
Author discusses wholly the treatments of three analytical techniques for linear operational amplifier circuits.
在此基础上，系统地论述了线性运算放大器电路分析的三种方法。
High precision integrated circuit operational amplifier KD205 designed and developed by our factory is described in this paper.
本文介绍我厂设计和研制成功的高精度集成电路运算放大器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.
运算放大器扩展功能，在电子电路设计中其数学模型为放大电路，含移相电容、反馈电阻及输入阻抗。
运算放大器（Operational Amplifier，简称Op-Amp）是一种高增益的直流耦合电压放大器集成电路，具有差分输入和单端输出。其核心功能是对输入电压差进行放大，是模拟电子电路中最基础且应用最广泛的元件之一。以下是其详细解释：
高增益与差分输入
运算放大器通常具备极高的开环电压增益（可达 (10) 以上，即 (100 text{dB})），能将微小的差分输入电压（(V+ - V-)）放大为大幅输出信号。理想运放模型包含以下特性：
虚短与虚断概念
在负反馈配置下，运放通过以下原理简化电路分析：
例如，反相放大器电路中，反馈电阻 (Rf) 与输入电阻 (R{in}) 决定闭环增益 (A_v = -frac{Rf}{R{in}})。
增益与带宽
输入/输出特性
基础配置
高级功能电路
现代运放已发展出多种类型：
Operational Amplifier（运算放大器） 是一种高增益的电子电压放大器，通常用于模拟电路中对信号进行放大、滤波、运算等操作。以下是详细解释：
运算放大器是模拟电路设计的核心元件，广泛应用于信号处理、控制系统、传感器接口等领域。其理想化模型简化了电路分析，但实际设计需结合具体型号的参数（如LM741、OPA2134等）。
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