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。
The equivalent input noise voltage, offset voltage drift, common mode rejection, power source rejection and other characteristics of a common source-common grid cascade amplifier is analysed in detail. 本文对一种共源-共栅串接差分输入级运算放大器的等效输入噪声电压、失调电压温漂、共模抑制比和电源电压抑制比等参数进行了详细的分析。
We introduce how to choose activating voltage for pressure sensor, analyze output voltage characteristic of an integrated regulate circuit vs input voltage and the principles to eliminate thermal drift of the offset and in the same time make it zero, furthermore did experiments to verify the principles. 本文介绍应怎样选择其激励电压值,同时分析了集成稳压电路的电压输入输出特性以及利用它对传感器供电消除热零点漂移同时又使零点偏移为零,并用实验加以验证。
We also analyze the effect of input noise voltage and current, input offset voltage and current of the operational amplifier, and the noise of the silicon photodiode on the combined circuit of the operational amplifier with the silicon photodiode. 分析了运算放大器的噪声电压、噪声电流、失调电压、失调电流和硅光电二极管的噪声因素对硅光电二极管与运算放大器组合电路的影响。
Through in-depth analysis of the causes of ripple, find out that the main factor affecting the ripple is the input offset voltage of error amplifier circuit in the prior to circuit. And by theoretical calculation the optimal value of the input offset voltage is obtained. 通过深入分析纹波产生的原因,指出影响纹波的主要因素是前向电路中误差放大电路的输入失调电压,并通过理论计算获得了输入失调电压的最优值。