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集成运放电路具有高输入阻抗和低输出阻抗的特点,而没有数字电路所特有的保真电压工作区。噪声干扰信号可通过多种渠道(如电源线)进入高增益的集成运放。在要求严格的集成运放构成设备的应用中,必须采取措施使噪声干扰降至最低限度,现综合有关资料进行介绍,如下所列。 1.每个集成运放都应有旁路措施 对靠近集成运放的电源线应跨接一个通用的盘形陶瓷电容器(0.01μF)。旁路电容的最小容量必须符合上升时间的要求,而且规定用温度稳定和精度为±
Integrated op amp circuit with high input impedance and low output impedance characteristics, and no digital circuit unique fidelity voltage work area. Noise Interference Signals can enter the high-gain integrated op amp through multiple channels, such as power cords. In the application of the strictly integrated op-amp component equipment, measures must be taken to minimize the noise interference. The relevant information is summarized as follows. 1. Each integrated op amp should be bypassed A universal, disk-shaped ceramic capacitor (0.01μF) should be placed across the power line near the integrated op amp. The minimum capacity of the bypass capacitor must meet the rise time requirements, and the provisions of the temperature stability and accuracy of ±