Design optimize and performance evaluation in ultra accurate system design by simulation

Nowadays, to achieve better performance, some "smart device" needs an ultra accurate analog signal source to trim/calibrate its internal circuit during mass production which is very challenging for current ATE vendors. To design such a highly accurate signal source, it requires lots of engineering time especially in system architecture optimization, system noise estimation and performance evaluation. This paper will introduce a new methodology to accomplish those tasks. With this method, an highly accurate AC source was designed and tested. The testing results of the signal performance and system noise matches simulation results.