The reference built inside has good specification. With 2.5 volts as the reference and a 4.5 ppm per deg C the change is 11 micro volts per degree in the reference. The step size of a 12 bit ADC with 2.5 volt ref is 610 micro volts. So about 30 degrees change in temperature inside gadget using this device can with stand good accuracy.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.