LTC2631ITS8-LZ10#TRMPBF

Overview

The LTC2631ITS8-LZ10#TRMPBF is a single-channel, 10-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 and a Differential Nonlinearity (DNL) of ±1 LSB. It incorporates a power-on reset circuit configured to clear the output to zero-scale upon initialization.

Feature Summary

• 10-bit resolution with ±1 LSB INL and ±1 LSB DNL accuracy
• Integrated 2.5V full-scale reference with 10ppm/°C temperature coefficient
• I²C interface with selectable addresses via CA0 pin
• Power-on reset to zero-scale for consistent system initialization

Applications

• Mobile communications
• Process control and industrial automation
• Portable equipment

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 operating temperature range of –40°C to 85°C for the target application environment. Ensure compatibility with the 2.7V to 5.5V supply voltage constraints specified for the LTC2631-L variant.

Selection Notes

Select this component when a compact 8-lead TSOT-23 package is required for space-constrained designs. Choose the LZ10 suffix specifically for applications needing a 10-bit resolution with a zero-scale power-on reset state. Verify that the 2.5V internal reference range meets the signal swing requirements, or consider external reference mode if higher voltages are needed. Ensure the I²C bus speed supports the system's data throughput needs within the 400kHz limit.

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 common architectural features such as the rail-to-rail output buffer and low-power operation. The LTS8 package type denotes an 8-lead plastic ThinSOT-23 form factor. Differentiation within the family is determined by resolution, power-on reset behavior, and temperature grade.

Replacement Considerations

Direct substitutes within the same family include LTC2631ITS8-LM10#TRMPBF (mid-scale reset) or LTC2631ITS8-HZ10#TRMPBF (4.096V full-scale). Cross-vendor replacements require matching I²C interface compatibility, 10-bit resolution, and similar supply voltage ranges.