LTC2631AHTS8-LZ12#TRPBF

Overview

The LTC2631AHTS8-LZ12#TRPBF is a single-channel, 12-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 on a single supply voltage ranging from 4.5V to 5.5V. 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 4.6µs at 5V, and guaranteed monotonicity over the operating temperature range of –40°C to 125°C. The part is housed in an 8-lead TSOT-23 package.

Feature Summary

• 12-bit resolution with ±1 LSB maximum INL error
• Integrated 4.096V precision reference (10ppm/°C drift)
• I²C interface with 400kHz clock rate support
• Power-on reset to zero-scale
• Automotive temperature grade (–40°C to 125°C)

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a 2,500-piece tape and reel packaging format. Confirm that the H-grade designation matches the required 4.5V to 5.5V supply voltage range and the –40°C to 125°C operating temperature specification for the target application environment.

Selection Notes

Select this component when a 12-bit DAC with high accuracy (±1 LSB INL) and an internal 4.096V reference is required. Ensure the system supply voltage remains within the 4.5V to 5.5V range. Choose this part over the L-grade variant if operation below 4.5V is not needed but higher temperature tolerance or specific reset behavior is desired.

Part Context

This part belongs to the LTC2631 family of single-channel DACs. The 'A' denotes the electrical grade with ±1 LSB INL, 'H' specifies the automotive temperature range and 4.096V full-scale output, 'TS8' indicates the 8-lead TSOT-23 package, 'LZ' signifies power-on reset to zero-scale, and '12' confirms 12-bit resolution.

Replacement Considerations

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