Why the AEC-Q100 grade matters for your sensor node
Internal reference — one less BOM line
For a calibration technician, the question is whether the internal reference's accuracy and drift over temperature meet the measurement tolerance — the datasheet's typical curves are the place to check, not the 'typical' line in the spec table.
PGA and input mux — one ADC for multiple sensors
The MUX-PGA-ADC architecture lets you connect up to four single-ended or two differential inputs through a single converter. The programmable gain amplifier (PGA) amplifies small sensor signals — thermocouple, shunt, pressure bridge — before conversion, so you can skip the external op-amp stage for many applications.
