An Automotive ASIL-D Safety Mechanism in ADC and DAC for Communication Application

This paper presents the highest automotive safety integrity level (ASIL-D) certified safety mechanism in analog-to-digital converter (ADC) and digital-to-analog converter (DAC) for communication application. The safety mechanism with built-in-self-test (BIST) monitors 3 safety items in real time and checks periodically 15 safety items of mixed-signal functionality. The ADC and DAC embedded with safety mechanisms are the first published converter IPs achieving ASIL-D certification, which show the highest fault coverage compared with previously published ASIL IPs/Chips.