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。
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.
最初的集成运算放大器的输出级是NPN电流源的NPN放射追随器或通过电阻下拉，如图1.6所示。
The earliest IC op amp OUTPUT stages were NPN emitter followers with NPN current sources or resistive pull-downs, as shown in Figure 1.6.
利用电子补偿方法，采用运算放大器和晶体管研制成了高精度、小变比电流互感器误差补偿装置。
Based on electronic compensation, the error compensation device used in high precision and small ratio current transformers is developed with operational amplifiers and transistors.
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。
Typical analysis of the constant-current resistance and the output current error, The writer gives the analysing process by means of operational amplifier.
同时为了保证测量精度，采用偏置电流极低的运算放大器opa128，并且增大了反馈电阻，以增强对弱信号的响应。
An OPA128 operational amplifier with extreme low bias current and big gain is adopted for enhancing the response to weak signals.
描述：低噪声，低静态电流，精密运算放大器电子微调系列。
Low-Noise, Low Quiescent Current, Precision Operational Amplifier e-trim Series.
运算放大器的各种误差都可以用等值的电压源或电流源来代替。
Various errors of an operational amplifier can be substituted by equivalent error voltage or current sources.
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。
The circuit is constructed by a operational amplifier and bipolar transistor current mirrors with multiple outputs.
通过讨论输入失调电流对集成运算放大器输出的影响，推导出集成运算放大器外围阻抗的最佳取值关系。
After discussing how the input offset current influences the output of operational amplifier, the optimal relationship between peripheral impedance is obtained.
并以宽带电流反馈运算放大器为核心，辅以FET输入电路及程控电路构建了高速高输入阻抗可变增益放大电路。
Combined with wide band current feedback amplifier, FET input circuit and programmable circuit, variable gain amplification circuit with high speed and high input impedance is designed.
本文提出了以运算放大器为基础的一种新型电流模式MOSFET-C全集成精确连续时间平衡结构六阶低通滤波器电路。
This paper presents a new fully integrated MOSFET-C current mode sixth-order low-pass filter with precise continuous time balanced structure.
在不使用运算放大器的情况下，直接利用晶体三极管与数字式电流表测出扩散电流，可以得到较为准确的玻尔兹曼常量。
The diffusion current is measured using transistor and digital ammeter instead of operational amplifiers, and the Boltzmann constant is obtained accurately.
偏置电流源电路的设计：利用带隙基准电压源提供的，通过运算放大器为系统其他的模块提供一个与温度无关的稳定的电流偏置。
The current bias design: Taking advantage of the bandgap reference voltage, the temperature independent current bias for the system is designed by an operation amplifier.
当你用跨导运算放大器作为可编程动态电流源时你会发现很多问题。
If you need a programmable dynamic current source, find out about operational transconductance amps. Most of the problem is figuring out when you need a programmable dynamic current source.
当你用跨导运算放大器作为可编程动态电流源时你会发现很多问题。
If you need a programmable dynamic current source, find out about operational transconductance amps. Most of the problem is figuring out when you need a programmable dynamic current source.
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