MAX6675ISA+

Sensor And Detector Interfaces Overview

The MAX6675ISA+ is a cold-junction-compensated K-type thermocouple-to-digital converter manufactured by Analog Devices Inc./Maxim Integrated. It digitizes the signal from a type-K thermocouple with 12-bit resolution and 0.25°C resolution, allowing readings up to +1024°C. The device exhibits thermocouple accuracy of 8 LSBs for temperatures ranging from 0°C to +700°C. It operates on a supply voltage (VCC) between 3.0V and 5.5V, with a typical supply current of 1.5 mA. The component is housed in an 8-pin SO package and supports an operating temperature range from -20°C to +85°C.

Sensor And Detector Interfaces Feature Summary

• Direct digital conversion of type-K thermocouple output
• Integrated cold-junction compensation
• Simple SPI-compatible serial interface
• Open thermocouple detection capability

Sensor And Detector Interfaces Applications

• Industrial process control
• Appliance temperature monitoring
• HVAC systems

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm RoHS compliance status and packaging configuration. Confirm that the selected variant matches the required operational temperature range and package dimensions for your PCB layout. Cross-reference the part number with authorized distributors to ensure authenticity and traceability before finalizing procurement orders.

Sensor And Detector Interfaces Selection Notes

Select this component when interfacing directly with K-type thermocouples requiring integrated signal conditioning and digital output. Ensure the application environment maintains ambient temperatures within the specified -20°C to +85°C range for accurate cold-junction compensation. Verify that the microcontroller supports the required SPI clock frequency and read-only data format for seamless integration.

Sensor And Detector Interfaces Part Context

The MAX6675ISA+ belongs to the MAX6675 family of thermocouple-to-digital converters designed for simplified temperature measurement systems. This specific ISA+ variant denotes the industrial temperature grade (-20°C to +85°C) packaged in an 8-pin Small Outline (SO) footprint. The '+' suffix indicates compliance with environmental directives, while the 'ISA' designation specifies the commercial/industrial temperature range and package style.

Sensor And Detector Interfaces Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.