[FAQ] HDC2080/HDC2010/HDC1080/HDC1010 - How do I decide which humidity/temp sensor should I use for my application?

The choice of which Texas Instruments HDC family member to use starts with the input voltage available for the design. If voltage available is between 2.7VDC to 5.5VDC, then the HDC1080 and HDC1010 are the devices to use. If voltage available is between 1.62VDC and 3.6VDC, then HDC2080 or HDC2010 are the devices to use. If 3.3VDC is supply voltage, then one of the other key differentiators found below will help the decision.

Once voltage input is decided, the next choice is package. In both generations, the -10 indicates WCSP package (as in HDC1010 or HDC2010) and -80 indicates WSON/QFN (as in HDC1080 or HDC2080). If the design needs to be compact, the WCSP is a good choice, and if there is more room, the WSON/QFN package is popular, as it allows direct footprint migration to the HDC2021 (polyimide tape cover variant, pre-production released) and HDC2022 (PTFE filter variant, in pipeline) variants.

There are slight differences in the firmware between the HDC10x0 and the HDC20x0 branches of the family and the HDC10x0 family of devices does take longer for measurement conversions as compared to the HDC20x0 parts – please read and follow programming specific documentation for the part you choose when developing your firmware.