LTC2631HTS8-LZ12#TRMPBF

Overview

The LTC2631HTS8-LZ12#TRMPBF 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 within a supply voltage range of 4.5V to 5.5V. The device utilizes a 2-wire I²C-compatible serial interface supporting clock rates up to 400kHz. Key electrical characteristics include a maximum Integral Nonlinearity (INL) error of ±1 LSB, a typical settling time of 4.6µs at ±1LSB accuracy, and low power consumption of 200µA at 5V. The component is housed in an 8-lead TSOT-23 package and is designed for operation across an extended temperature range of –40°C to 125°C.

Feature Summary

• Integrated 4.096V precision reference with 10ppm/°C temperature coefficient
• 12-bit resolution with guaranteed monotonicity and ±1 LSB maximum INL
• I²C interface supporting standard (100kHz) and fast (400kHz) modes
• Power-on reset circuit configured to clear output to zero-scale

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 specific ordering suffix #TRMPBF indicates a 500-unit tape and reel quantity, distinct from the standard 2,500-unit TR configuration. Confirm that the H-grade designation matches the required automotive temperature range of –40°C to 125°C for the target application environment.

Selection Notes

Select this part when a 4.096V internal reference is required alongside high linearity accuracy. Ensure the system supply voltage remains between 4.5V and 5.5V, as lower voltages are insufficient for the H-grade variant. Consider the LZ12 suffix if a zero-scale power-on reset state is necessary for system initialization safety.

Part Context

This component belongs to the LTC2631 family of single-channel DACs. Variants within the family differ by resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and power-on reset behavior (mid-scale or zero-scale). The HTS8 package denotes the 8-lead ThinSOT form factor used across the series.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Analog Devices marketing for non-standard lead-based finish parts or alternative packages.