Analog Bits'Automotive Grade Sensor is a highly integrated macro for monitoring temperature, voltage and process variation on-chip, allowing very high precision even in untrimmed usage. It consumes very little power even in operational mode, and leakage power only when temperature measurement is complete. An additional voltage sample and process mode is included allowing for supply voltage monitoring. The block includes a simple-to-use digital interface that works with standard core and IO level power supplies. The macro uses core and thick-oxide devices.