2.3.8.5 DC Analog Output-Transient Protection

The dc analog output is subjected to transients when exposed to harsh environments and must be protected. A transient-voltage suppressor (TVS) is used to protect the output against transients. The design calculations and testing are simplified by using a flat-clamp TVS, and the following table provides a list of TVSs that can be considered based on the application. The TVS can be used for overload protection, replacing DESD1P0RFW-7 in Figure 12 and Figure 43, and Zener SMBJ5929BE3/TR13 in Figure 19 and Figure 41.