Datasheet MAX6675 (Maxim)

EVALUATION KIT AVAILABLE MAX6675 Cold-Junction-Compensated K-Thermocouple- to-Digital Converter (0°C to +1024°C) General Description Features
The MAX6675 performs cold-junction compensation and ● Direct Digital Conversion of Type -K Thermocouple digitizes the signal from a type-K thermocouple. The Output data is output in a 12-bit resolution, SPI™-compatible, ● Cold-Junction Compensation read-only format. ● Simple SPI-Compatible Serial Interface This converter resolves temperatures to 0.25°C, allows readings as high as +1024°C, and exhibits thermocouple ● 12-Bit, 0.25°C Resolution accuracy of 8LSBs for temperatures ranging from 0°C to ● Open Thermocouple Detection +700°C. The MAX6675 is available in a small, 8-pin SO package.
Ordering Information Applications PART TEMP RANGE PIN-PACKAGE
● Industrial MAX6675ISA -20°C to +85°C 8 SO ● Appliances ● HVAC
Pin Configuration
TOP VIEW GND 1 8 N.C. T- 2 7 SO MAX6675 T+ 3 6 CS VCC 4 5 SCK SPI is a trademark of Motorola, Inc.
SO Typical Application Circuit
Vcc 0.1µF MAX6675 GND MICROCONTROLLER 68HC11A8 SO MISO T+ SCK SCK T- CS SSB 19-2235; Rev 2; 4/14