I am willing to make a best choice between three possible thermometry candidates measuring most smallest ever possible temperature DIFFERENCE between multiple points in the rather harsh GHz range EM-noise field :
Must to be dT=0,0007 C what is 16 bits
Must to be digital reading, thus spi or better i2c but both are digestable
Candidate 1=LM95172EWG with ultra-fast reading (=good but not essential); with damn bad metrological linearity 1C (very bad) and noted that "serial interface means never before been noise immunity" (very extra +++ important for my case but I dont believe no a word in this sensless motivation - all the candidates have identical serial interfaces); SPI interface (not best but okay); the tablet have none thermal contact pad (wonder if it is useful for measuring at all)
Candidate 2=ADT7320 with slow measurement 1 sec (rather OK or at least not tragic); metrological accuracy 0,2 C (brilliant); SPI interface (not brilliant but ok); nothing said about noise immunity (great unknown); thermal pad exist
Candidate 3=ADT7410 with slow as the previous, metrological accuracy 0,5 C; i2c interface (wonderful, however it isnt the most important thing); thermal pad exist. ADT 7420 the same but metrology 0,25 C and price 6x up.
Candidate 4=STS31DIS or better STS35DIS with unique metrology 0,1 C and drift 0,03 C/per annum, sensitivity the same 16 bits, SPI interface but relaitively unknown producer (Sensirion) first hear such.
Candidate 5=Max31725 with 50 msec and metrology 0,5 C and i2c
Candidate 6=G-Nico TSYS-01 (metrology 0,1 C) 16 bit - have experience with it cheap end brothers - just wonderful however the soldering of TDFN/QFN is real nightmare); exists 24-bit version (just a sweatheart candy) TSYS01-1 -GNICO-023D however I deny to understand what means resolution 0,01C at 24 bit reading. Something there smells by fishing. Elementary calc show the 24 bits means the 5 micro Celsius.
So - what is the best candidate according Your experience?
And, maybe there are some more candidates unknown to me?
Must to be dT=0,0007 C what is 16 bits
Must to be digital reading, thus spi or better i2c but both are digestable
Candidate 1=LM95172EWG with ultra-fast reading (=good but not essential); with damn bad metrological linearity 1C (very bad) and noted that "serial interface means never before been noise immunity" (very extra +++ important for my case but I dont believe no a word in this sensless motivation - all the candidates have identical serial interfaces); SPI interface (not best but okay); the tablet have none thermal contact pad (wonder if it is useful for measuring at all)
Candidate 2=ADT7320 with slow measurement 1 sec (rather OK or at least not tragic); metrological accuracy 0,2 C (brilliant); SPI interface (not brilliant but ok); nothing said about noise immunity (great unknown); thermal pad exist
Candidate 3=ADT7410 with slow as the previous, metrological accuracy 0,5 C; i2c interface (wonderful, however it isnt the most important thing); thermal pad exist. ADT 7420 the same but metrology 0,25 C and price 6x up.
Candidate 4=STS31DIS or better STS35DIS with unique metrology 0,1 C and drift 0,03 C/per annum, sensitivity the same 16 bits, SPI interface but relaitively unknown producer (Sensirion) first hear such.
Candidate 5=Max31725 with 50 msec and metrology 0,5 C and i2c
Candidate 6=G-Nico TSYS-01 (metrology 0,1 C) 16 bit - have experience with it cheap end brothers - just wonderful however the soldering of TDFN/QFN is real nightmare); exists 24-bit version (just a sweatheart candy) TSYS01-1 -GNICO-023D however I deny to understand what means resolution 0,01C at 24 bit reading. Something there smells by fishing. Elementary calc show the 24 bits means the 5 micro Celsius.
So - what is the best candidate according Your experience?
And, maybe there are some more candidates unknown to me?
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