LTC2631HTS8-HZ10#TRMPBF

Overview

The LTC2631HTS8-HZ10#TRMPBF is a single 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features an integrated precision reference with a full-scale output of 4.096V and operates within a supply voltage range of 4.5V to 5.5V. The device utilizes a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It includes a power-on reset circuit configured to clear the output to zero-scale upon power-up. The DAC incorporates a rail-to-rail output buffer guaranteed monotonic over temperature and offers a bidirectional reference pin providing a 10ppm/°C reference output.

Feature Summary

• 10-bit resolution with ±1 LSB maximum INL error
• Integrated 4.096V reference with 10ppm/°C temperature coefficient
• Power-on reset to zero-scale
• I²C interface with 400kHz clock rate support

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems
• Optical networking

Procurement Notes

Verify the H-grade designation confirms the –40°C to 125°C automotive temperature range and the Z suffix ensures zero-scale power-on reset behavior. Confirm the TRMPBF suffix indicates a 500-unit tape and reel packaging format. Ensure the LTS8 package matches the required 8-lead TSOT-23 footprint for the target PCB layout.

Selection Notes

Select this part when a 4.096V full-scale output is required, necessitating a minimum 4.5V supply voltage. Choose the H-grade for operation up to 125°C junction temperature. The Z suffix is critical if system initialization requires the DAC output to default to zero volts rather than mid-scale after power cycling.

Part Context

This component belongs to the LTC2631 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The family shares a common 8-lead TSOT-23 package and I²C interface architecture. Variations exist based on full-scale voltage (2.5V or 4.096V), temperature grade (C, I, or H), and power-on reset configuration (mid-scale or zero-scale).

Replacement Considerations

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