LTC2631HTS8-HZ12#TRMPBF

Overview

The LTC2631HTS8-HZ12#TRMPBF is a single 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc., housed in an 8-lead TSOT-23 package. It features an integrated precision reference providing a full-scale output of 4.096V, requiring a supply voltage between 4.5V and 5.5V. The device supports a 2-wire I²C interface with clock rates up to 400kHz and includes nine selectable slave addresses via CA0 and CA1 pins. It incorporates a power-on reset circuit configured to clear the output to zero-scale upon initialization. The component operates within an extended temperature range of –40°C to 125°C.

Feature Summary

• 12-bit resolution with ±1LSB maximum Integral Nonlinearity (INL)
• Integrated 4.096V reference with 10ppm/°C temperature coefficient
• I²C compatible serial interface supporting standard (100kHz) and fast (400kHz) modes
• Power-on reset to zero-scale for consistent system initialization

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 operating range and 4.5V minimum supply requirement. Confirm the Z suffix indicates the zero-scale power-on reset configuration. Ensure the TRMPBF suffix corresponds to the 500-unit tape and reel packaging format specified by the manufacturer.

Selection Notes

Select this part when a 12-bit accuracy with ±1LSB INL is required alongside a high-drift internal reference. The H-grade is necessary for automotive or high-temperature environments exceeding 85°C. Verify that the 4.5V to 5.5V supply constraint aligns with the system power architecture, as lower voltage variants (L-grade) are not suitable for this specific model.

Part Context

This component belongs to the LTC2631 family of single-channel DACs. Variants differ by resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and temperature grade (C, I, or H). The HTS8 suffix specifically denotes the H-grade temperature rating and the TSOT-23 thin plastic package type.

Replacement Considerations

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