LTC2986CLX-1#PBF

Thermal Management Overview

The LTC2986CLX-1#PBF is a multi-sensor digital temperature measurement system in a 48-lead LQFP package. It features a single 2.85V to 5.25V supply and provides 0.1°C accuracy with 0.001°C resolution. The device includes an on-chip EEPROM for storing channel configuration data and custom coefficients. It supports 10 flexible inputs, automatic thermocouple cold junction compensation, and built-in standard and user-programmable coefficients for thermocouples, RTDs, and thermistors.

Thermal Management Feature Summary

• Digitizes various sensor types including 2-, 3-, or 4-wire RTDs, thermocouples, thermistors, and diodes directly.
• Includes on-chip EEPROM to store channel configuration data and custom coefficients.
• Provides automatic thermocouple cold junction compensation using internal sensors.
• Features built-in standard and user-programmable coefficients for multiple sensor types.

Thermal Management Applications

• Universal multi-sensor applications requiring interchangeable sensor inputs
• Direct thermocouple measurements with automatic cold junction compensation
• Direct RTD measurements with ratiometric excitation
• Custom sensor applications utilizing user-defined coefficients

Thermal Management Procurement Notes

Verify the specific suffix '-1' indicates the inclusion of on-chip EEPROM storage capabilities compared to the base model. Confirm the 'C' grade designation aligns with the required commercial operating temperature range of 0°C to 70°C for your application environment. Ensure the LQFP-48 package dimensions match your PCB footprint requirements.

Thermal Management Selection Notes

Select this component when high accuracy digital temperature measurement is required across diverse sensor types. The integrated EEPROM allows for persistent configuration storage without external memory devices. Consider the 10-channel flexibility for systems needing mixed sensor inputs. Verify that the SPI interface compatibility matches your host controller's digital communication standards.

Thermal Management Part Context

This part belongs to the LTC2986 family, which are software and pin-compatible versions of the 20-channel LTC2983/LTC2984. The -1 suffix specifically denotes the version equipped with non-volatile EEPROM memory. The CLX variant specifies the commercial temperature grade and tape-and-reel packaging format within the 48-lead LQFP housing.

Thermal Management Replacement Considerations

LTC2986ILX-1#PBF (Industrial Grade)

Thermal Management FAQ

What is the primary difference between the LTC2986 and LTC2986-1?

The LTC2986-1 includes on-chip EEPROM for storing channel configuration data and custom coefficients, whereas the standard LTC2986 does not have this non-volatile memory feature.

Can the LTC2986 measure negative thermocouple voltages?

Yes, the device is capable of measuring negative thermocouple voltages and can digitize signals down to 50mV below ground from a single ground-referenced supply.