MAX6674 Thermocouple Intfc below ground
MAX6674 Thermocouple Intfc below ground
(OP)
I'd like to use the Maxim MAX6674 thermocouple interface, but, I'd like to monitor temperatures less than 32degF.
Has anyone used any tricks to run this interface 'below ground' and measure temperatures less than 0degC?
Has anyone used any tricks to run this interface 'below ground' and measure temperatures less than 0degC?





RE: MAX6674 Thermocouple Intfc below ground
TTFN
Eng-Tips Policies FAQ731-376
RE: MAX6674 Thermocouple Intfc below ground
The reference to -20 is the temperature limit of the chip, not the measuring temperature.
That is, the chip will not measure temperatures below 0, but the chip will accurately measure sensor temperatures down to 0 degrees when the chip is in an ambient of -20 degrees.
respectfully
RE: MAX6674 Thermocouple Intfc below ground
Do you know of any TC interfacing chips for sub-zero operation? (besides AD's stuff)