Other Parts Discussed in Thread: LMH6643 , OPA2863 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。 https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1418937/opa2863-radiation-noise-issue-on-opa2863-poor-performance-than…
Hi
The PSPICE and TINA SPICE amplifier models internal parameters are not adjusted by Monte Carlo analysis. Monte Carlo will is frequently used to adjust resistors and capacitors in their tolerance range.
Maybe offset, and bias current can be modeled…
Part Number: OPA2863 如下电路,运放工作在负反馈状态下,两输入端电压应该相等,实际测试输入引脚3的电压为1.496V,测试输出引脚2的电压只有1.482V,之前用其它运放输入和输出差不超过0.002V,采用OPA2863为什么差0.014V这么多?其中R117如果更换成300K,运放输出偏差更大,3引脚输入为1.496V,2引脚输出测试为1.39V,请问受哪个指标影响或原理图设计存在问题吗?