To avoid the necessity of adding numerous external components, which would increase the application cost and possibly make reliable contact-resistance measurement more difficult, the MAX13362 (datasheet) was carefully designed to be robust.

The MAX13362 is a 24-channel automotive contact monitor designed as an interface between mechanical
switches and low-voltage microcontrollers or other logic circuits. It features an SPI interface to monitor individual switch inputs and to configure interrupt capability, wetting current etc.