文件名称：Effect of Parasitic Capacitance in Op Amp Circuits
文件大小：371KB
文件格式：PDF
更新时间：2016-08-08 12:03:30
Op Amp circuit
寄生電容對放大器線路的影響 Parasitic capacitors are formed during normal operational amplifier circuit construction. Operational amplifier design guidelines usually specify connecting a small 20-pF to 100-pF capacitor between the output and the negative input, and isolating capacitive loads with a small, 20-Ω to 100-Ω resistor. This application report analyzes the effects of capacitance present at the input and output pins of an operational amplifier, and suggests means for computing appropriate values for specific applications. The inverting and noninverting amplifier configurations are used for demonstration purposes. Other circuit topologies can be analyzed in a similar manner.