此图显示的是典型的运放噪声模型。
热插拔的双部型运放升级最终数字环绕音效。
Swappable dual DIP type OPAMP upgrades ultimate digital surround sound.
其中一个重要的依据是运放的输入特性参数。
The input characteristic parameter is one of the most important basis.
本文阐明了低频低噪声运放XD1531的设计原理。
The design principle is described for low frequency integrated operational amplifier XD1531 with low noise.
但这种情形对于敏感运放的输入端晶体管是极为不利的。
But this situation is unhealthy for sensitive op-amp input transistors.
运放维持接近其负极、地或轨的稳定性是很重要的指标。
An operational amplifier that can maintain stability close to its negative, or ground, rail is an important asset.
考虑了在不同信号激励下运放所呈现的线性和非线性响应；
The linear and nonlinear responses of OAs under the drive of different signal levels are considered.
根据实际要求，提出了高速运放调理和高速电子开关两种方案。
According to the practical requirements, two schemes, i. e. high-speed operational amplifier and high-speed electronic switch are proposed.
该有源滤波器基于电流检测、电流补偿的原理，以高速运放为核心。
The proposed filter is based on the current sensing and compensation circuit and it utilizes a fast amplifier for the current compensation.
对运放参数测试的自动校零方法、测试主回路的闭环稳定性进行了研究。
This paper describes the automatic null-setting method for Op-Amp parameters measurement and the stability of the main measurement loop.
该电路采用三运放结构，具有良好的性能，文中给出了相关的测试结果；
This electrocircuit has three amplifiers and gains good performance. The relevant sampling result is also presented.
但集成运放带宽有限，所以目前的有源滤波电路的工作频率难以做得很高。
But the integrated operational amplifier bandwidth is limited, so the current active filter circuit is difficult to do very high operating frequencies.
当大部分JFET运放的输入超过它的共模范围时，输出可能发生极性翻转。
When inputs to most JFET op amps exceed the common-mode range for the part, the output may reverse polarity.
例如，选择负轨作为地参考也许能够优化一个输出可以至0运放的动态范围。
For example, choosing the negative rail as the ground reference may optimize the dynamic range of an op amp whose OUTPUT is designed to swing to 0v.
按本文所提出的设计步骤，既可选出满足给定指标的运放，又可使级数降到最少。
With this procedure, appropriate operational amplifier can be selected to meet a given specifications and the number of stages can be minimised.
在设计中还采用了共源共栅两级运放和差分动态比较器来优化电路的速度和功耗。
The cascode two -stage op -amp and differential dynamic comparator are also used to optimize the speed and power dissipation.
电路运用带隙温度补偿技术，采用共源共栅电流镜，两级运放输出用于自身偏置电路。
The technology of temperature compensation and cascade current mirror was used, and the output of two stage amplifier was used for the bias of itself.
有源滤波器基本上由集成运放和R、C组成，具有不用电感、体积小、重量轻等优点。
Active filter is basically an integrated operational amplifier, and r, c, has a no inductance, small size, light weight and so on.
采用高阻、低漂移运放tLC 2254组成高阻差动放大电路用于酸度电极信号测量。
The signal of acidity electrode is detected by a differential amplifier circuit, which consists of operational amplifiers TLC2254 with high input impedance and low drift.
些电路的设计者们在设计时都有同样的观念：完整的单一模式集成电路继电器和微功率运放。
The designers of these circuits based them on the same concept: a fully integrated, single-die-IC switching regulator and a micropower operational amplifier.
在对输出级的功能和稳定性作了分析计算后，设计了一种高增益、低失真的运放（OP）电路。
On the basis of analysis of the output stage function and stability, an operational amplifier (OP) with high gain and low distortion is designed.
本文中详细给出了运放器件低频噪声的测试方法并对测试过程中的若干关键问题进行了深入剖析。
This paper presents a detailed discussion of the method for measuring low frequency noise in operational amplifier devices as well as an analysis of some key problems in the measuring process.
由BIMOS型运放和VMOS场效应晶体管的巧妙配合，使仪器具有很高的精度和很好的性能。
Through the ingenious cooperation of BIMOS op amplifier and VMOS FET (filed effect transistor), making the instrument have higher precision and better performance.
本文讨论了使用跨导运放(OTA)和电容(C)实现跳耦结构的有源滤波器，给出了电路设计公式。
In this paper, a realization of active continuous time OTA-C filter with leapfrog structure is discussed and the formulas of circuit design are give.
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。
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.
数模转换器、模拟集成滤波器、基准电压源和高驱动能力运放等电路是通信系统中不可缺少的基本电路。
Digital to analog converter, analog integrated filter, bandgap reference and high drive capability operational amplifier are indispensability basic circuit of communication system.
通过对常用的测量共模抑制比的方法的分析，提出了一种高精度的简便的测量运放的共模抑制比的方法。
This paper analyses the common way of measuring CMRR, and proposes a simple and highly sophisticated method of measuring CMRR of Operational Amplifier Circuit.
采用运放单电源供电电路，实现成本低廉，结构简单，性能优越的设计，可广泛应用于低功耗医疗仪器设备。
Adopting single supply operator amplifier, the design realizes low cost, simple construction and superior capability. It can be widely used in low power medical instruments.
同时运用自动调零技术，克服了线性基准的失调缺陷，消除了运放的失调电压，提高了输出电压的失调精度。
And the technology of auto-zero is used to overcome the offset disadvantage of linear reference and cancel the offset voltage of amplifier.
同时运用自动调零技术，克服了线性基准的失调缺陷，消除了运放的失调电压，提高了输出电压的失调精度。
And the technology of auto-zero is used to overcome the offset disadvantage of linear reference and cancel the offset voltage of amplifier.
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