LTC2631ITS8-LM12#TRMPBF

Overview

The LTC2631ITS8-LM12#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 2.5V and operates from a single 2.7V to 5.5V supply. The device utilizes a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum Integral Nonlinearity (INL) error of ±1 LSB, a typical settling time of 4.1µs at ±1 LSB for 12-bit resolution, and low power consumption of 180µA at 3V. The part includes a power-on reset circuit configured to initialize the output to mid-scale.

Feature Summary

• 12-bit resolution with ±1 LSB maximum INL error
• Integrated 2.5V full-scale reference with 10ppm/°C temperature coefficient
• I²C interface with selectable addresses via CA0/CA1 pins
• Power-on reset to mid-scale option

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration as defined in the manufacturer's documentation. Confirm that the 'I' grade designation matches the required industrial operating temperature range of –40°C to 85°C for the target application environment.

Selection Notes

Select this component when a 12-bit DAC with high accuracy (±1 LSB INL) and an integrated 2.5V reference is required within a compact TSOT-23 package. Ensure the system supply voltage remains between 2.7V and 5.5V. Choose this variant over the 'H' grade if operation below 4.5V is necessary, or over the 'Z' suffix if a mid-scale power-on reset state is preferred for system initialization.

Part Context

This part belongs to the LTC2631 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The 'L' suffix denotes the 2.5V full-scale internal reference variant, while 'M' specifies the mid-scale power-on reset behavior. The 'TS8' package identifies the 8-lead ThinSOT form factor, providing a space-efficient solution for dense PCB layouts compared to larger packages.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material. Designers should consult Analog Devices marketing for information on non-standard lead-based finish parts or alternative devices within the same product family.