mode rejection

Based on the structure, an ultra-low voltage operational amplifier is designed, which provides a rail-to-rail common-mode input voltage range and output voltage swing, as well as a high common mode rejection ratio ( CMRR).

基于此结构，实现了一种超低压运算放大器。仿真分析表明，该运算放大器能够实现轨到轨（rail-to-rail）的共模输入电压范围和输出电压摆幅，以及较高的共模抑制比。

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Its common mode rejection ratio ( CMRR ) was 65 dB at 100 kHz.

在100kHz时,该系统仍具有 65dB 的共模抑制比.

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Experimental results show that the device can precisely measure many parameters of IOA, such as input offset voltage, input offset current, open loop differential AC voltage gain and AC common mode rejection ratio.

实验结果表明该测试仪能准确测量运算放大器的输入失调电压、输入失调电流、交流差模开环电压增益和交流共模抑制比等参数。

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Its common mode rejection ratio ( CMRR) was 65 dB at 100 kHz.

在100kHz时，该系统仍具有65dB的共模抑制比。

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Signal amplification system designed partly based on the differential op amp amplifier circuit to improve the signal to noise ratio, increasing the signal common mode rejection ratio.

系统的信号放大设计部分采用了差分运放放大电路，以提高信号的信噪比，并增大信号的共模抑制比。

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Analog front-end circuit consists of preamplifier, low pass filter circuit and back stage amplifier circuit, preamplifier circuit instrumentation amplifier is used because it has a high input impedance, high common mode rejection ratio ( CMRR), low noise, and low drift.

模拟前端电路由前置放大电路、高低通滤波电路和后级放大电路组成，前置放大电路用的是仪表放大器，因为它有高输入阻抗、高共模抑制比（CMRR）、低噪声、低漂移。

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By means of applied technology of IC operational amplifiers, digital to analog converter and single chip microcontroller, a programmable precision measuring differential amplifier with low noise, low drift, high input impedance and high common mode rejection ratio is developed and introduced.

介绍了一种由DAC电压衰减器作为集成运放反馈电路的低噪声、低漂移、高输入阻抗和高共模抑制比的可编程精密差动测量放大器。

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The static operating current is only several μ A at 1.8 V~ 5.5 V supply voltage. The amplifier achieves an open-loop gain higher than 80 dB, and had high power supply rejection ratio ( PSRR) and high common mode rejection ratio ( CMRR).

电源工作电压1.8V~5.5V，静态工作电流仅为μA级，并具有80dB的开环增益、高电源电压抑制比和高共模抑制比等特点。

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On the Relation Between Power Source Rejection Ratio, Open Loop Voltage Gain and Common Mode Rejection Ratio of an Operational Amplifier

运算放大器电源电压抑制比、开环电压增益和共模抑制比的关系

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Ability to collect high accuracy, high input impedance and high common mode rejection ratio of the technical parameters, making the system more reliable results reflect the true acquisition.

高精度的采集能力，高输入阻抗和高共模抑制比的技术参数，使得系统能更可靠的反映真实采集结果。

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