LTC2631HTS8-HM12#TRPBF

Overview

The LTC2631HTS8-HM12#TRPBF is a single-channel, 12-bit voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It features an integrated precision reference with a full-scale output of 4.096V and operates from a 4.5V to 5.5V supply. The device includes a rail-to-rail output buffer guaranteed monotonic over temperature and supports I²C interfaces at standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) of ±1 LSB, a typical settling time of 4.6µs, and a power-on reset function that defaults the output to mid-scale.

Feature Summary

• Integrated 4.096V precision reference with 10ppm/°C temperature coefficient
• Bidirectional REF pin allows external reference input or internal reference output
• Power-on reset option configured to mid-scale via REF_SEL pin
• I²C compatible serial interface supporting up to 400kHz clock rate

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics
• Optical networking devices

Procurement Notes

Verify the H-grade designation confirms the –40°C to 125°C operating range and the M suffix ensures mid-scale power-on reset behavior. Confirm the TRPBF suffix indicates tape-and-reel packaging with lead-free compliance. Cross-reference the specific lot markings against the datasheet part marking guide to ensure authenticity and correct revision level.

Selection Notes

Select this component when a 4.096V full-scale output is required with high accuracy. The H-grade is necessary for automotive or wide-temperature industrial applications exceeding 85°C. Ensure the system supply voltage remains within the 4.5V to 5.5V range. Compare against the L-grade variant if a lower 2.7V supply and 2.5V output are sufficient for the design constraints.

Part Context

This part belongs to the LTC2631 family of single-channel DACs. It shares the same core architecture as the LTC2631CTS8-HZ12 but differs in its power-on reset configuration and address pin usage. The 'H' suffix denotes the extended temperature grade, while 'M' specifies the mid-scale reset state, distinguishing it from 'Z' variants that reset to zero-scale.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.