LTC2631AITS8-HZ12#TRPBF

Overview

The LTC2631AITS8-HZ12#TRPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It integrates a precision reference with a temperature coefficient of 10ppm/°C and operates within an automotive temperature range of –40°C to 125°C. The device features a rail-to-rail buffered output and supports I²C interfaces at standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum Integral Nonlinearity (INL) error of ±1 LSB and a typical settling time of 4.6µs at 5V supply. Power-on reset options allow initialization to zero-scale or mid-scale.

Feature Summary

• 12-bit resolution with ±1 LSB maximum INL error
• Integrated 10ppm/°C precision reference (4.096V full-scale)
• Automotive grade operation (-40°C to 125°C)
• I²C interface supporting 400kHz clock rate

Applications

• Automotive systems
• Process control and industrial automation
• Portable equipment

Procurement Notes

Verify the specific suffix #TRPBF indicates a 2,500-piece tape and reel packaging configuration. Confirm that the 'H' temperature grade designation aligns with the required -40°C to 125°C operating range for the target application environment.

Selection Notes

Select this part when a 12-bit DAC with high accuracy (±1 LSB INL) and automotive reliability is required. Ensure the system supply voltage accommodates the 4.5V to 5.5V range specified for the H-grade internal reference mode. Verify I²C address configuration via CA0/CA1 pins if multiple devices are present.

Part Context

This component belongs to the LTC2631 family of single-channel DACs. Variants differ by resolution (8/10/12-bit), temperature grade (C/I/H), and power-on reset behavior (Zero/Mid-scale). The 'A' grade denotes tighter linearity specifications compared to standard grades.

Replacement Considerations

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