LTC2986CLX#PBF

Thermal Management Overview

The LTC2986CLX#PBF is a multi-sensor digital temperature measurement system in a 48-lead LQFP package. It digitizes thermocouples, RTDs, thermistors, and diodes with 0.1°C accuracy and 0.001°C resolution. The device features a 24-bit ADC, an internal 15ppm/°C reference, and SPI interface. Operating on a single 2.85V to 5.25V supply, it supports 10 flexible inputs with automatic cold junction compensation and fault detection.

Thermal Management Feature Summary

• Digitizes standard and custom thermocouples, RTDs, thermistors, and diodes
• Includes built-in excitation current sources and automatic fault detection
• Performs automatic cold junction compensation for thermocouple measurements
• Features buffered analog inputs allowing external protection circuits

Thermal Management Applications

• Industrial process control systems
• HVAC monitoring and management
• Medical equipment temperature sensing
• Automotive thermal management

Thermal Management Procurement Notes

Verify the specific suffix CLX indicates the commercial temperature grade (0°C to 70°C) and LX denotes the tape and reel packaging format. Confirm that the #PBF designation ensures lead-free compliance and RoHS adherence. Cross-reference the manufacturer's latest documentation to ensure the component meets current environmental and material declarations before finalizing procurement specifications.

Thermal Management Selection Notes

Select this component when high accuracy across multiple sensor types is required without external signal conditioning. The integrated linearization and polynomial calculations simplify firmware development. Ensure the application environment remains within the 0°C to 70°C operating range specified for the C-grade variant. Verify that the SPI interface timing requirements are compatible with the host microcontroller.

Thermal Management Part Context

This part belongs to the LTC2986 family of multi-sensor temperature measurement ICs. It serves as a software-compatible alternative to higher-channel devices like the LTC2983 and LTC2984. The CLX variant specifically targets cost-sensitive applications requiring reliable temperature data acquisition from diverse industrial sensors within a compact surface-mount footprint.

Thermal Management Replacement Considerations

LTC2986ILX#PBF offers extended industrial temperature range (-40°C to 85°C). LTC2986HLX#PBF provides automotive-grade wide temperature operation (-40°C to 125°C). LTC2986CLX-1#PBF includes onboard EEPROM for configuration storage.