LTC2631ITS8-LZ10#TRPBF

Overview

The Analog Devices LTC2631ITS8-LZ10#TRPBF is a single-channel, 10-bit voltage-output digital-to-analog converter housed in an 8-lead TSOT-23 package. It features an integrated precision reference with a temperature coefficient of 10ppm/°C and a full-scale output of 2.5V. The device operates on a single supply ranging from 2.7V to 5.5V and utilizes a 2-wire I²C serial interface supporting standard (100kHz) and fast (400kHz) modes. Key specifications include a typical settling time of 3.8µs for ±1LSB accuracy, bidirectional reference capabilities, and a power-on reset function that defaults the output to zero-scale.

Feature Summary

• 10-bit resolution with guaranteed monotonicity over the operating temperature range
• Integrated 10ppm/°C precision reference providing a 2.5V full-scale output
• I²C-compatible serial interface with nine selectable slave addresses via CA0 and CA1 pins
• Power-on reset circuit configured to clear the DAC output to zero-scale upon initialization

Applications

• Mobile communications systems
• Process control and industrial automation instrumentation
• Portable battery-powered equipment
• Automotive electronic subsystems

Procurement Notes

Verify the specific suffix 'LZ10' confirms the 10-bit resolution, zero-scale power-on reset, and 2.5V internal reference configuration. Confirm the 'I' grade designation matches the required industrial temperature range of –40°C to 85°C. Ensure the '#TRPBF' suffix indicates the tape and reel packaging format compatible with automated surface-mount assembly processes.

Selection Notes

Select this component when a compact 10-bit DAC with low drift is required for space-constrained designs. The I-grade variant is suitable for environments requiring operation between –40°C and 85°C. Consider the external reference mode if a different full-scale voltage than 2.5V is needed, as the REF pin accepts input voltages up to VCC.

Part Context

This part belongs to the LTC2631 family of single-channel DACs, which also includes 8-bit and 12-bit variants. The family shares identical pinouts and I²C interfaces but differs in resolution, accuracy grades (A vs standard), and full-scale voltage options (2.5V or 4.096V). The LTS8 package denotes the 8-lead ThinSOT form factor common across the series.

Replacement Considerations

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