MAX6675ISA+T 传感器接口IC

MAX6675ISA+T

Cold-Junction-Compensated K-Thermocoupleto-Digital  Converter (0°C to +1024°C)

传感器接口 K Thermocouple to Digital Converter

General Description 

The MAX6675ISA+T MAX6675 performs cold-junction compensation and digitizes the signal from a type-K thermocouple. The data is output in a 12-bit resolution, SPI™-compatible, read-only format. 

This converter resolves temperatures to 0.25°C, allows readings as high as +1024°C, and exhibits thermocouple accuracy of 8LSBs for temperatures ranging from 0°C to +700°C. 

The MAX6675ISA+T MAX6675 is available in a small, 8-pin SO package. 

Features MAX6675ISA+T

● Direct Digital Conversion of Type -K Thermocouple Output 

● Cold-Junction Compensation 

● Simple SPI-Compatible Serial Interface 

● 12-Bit, 0.25°C Resolution 

● Open Thermocouple Detection 

Applications

● Industrial 

● Appliances 

● HVAC 

Supply Voltage (VCC to GND) ............................... -0.3V to +6V

SO, SCK, CS, T-, T+ to GND .....................-0.3V to VCC + 0.3V

SO Current ....................................................................... 50mA

ESD Protection (Human Body Model) .......................... ±2000V

Continuous Power Dissipation (TA = +70°C)

8-Pin SO (derate 5.88mW/°C above +70°C) ............. 471mW

Operating Temperature Range .......................... -20°C to +85°C