LTC2633CTS8-LX8#TRPBF

Overview

The LTC2633CTS8-LX8#TRPBF is a dual-channel, 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 2.5V and a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 2.7V to 5.5V and communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key specifications include rail-to-rail output buffers, guaranteed monotonicity over the operating temperature range, and a power-on reset function that initializes outputs to mid-scale in external reference mode.

Feature Summary

• Dual 8-bit DACs with integrated 2.5V precision reference (10ppm/°C drift)
• I²C interface with selectable internal or external reference input
• Power-on reset to mid-scale in external reference mode
• Rail-to-rail output buffers with guaranteed monotonicity

Applications

• Mobile communications systems
• Process control and industrial automation
• Portable equipment requiring low power consumption

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel quantity of 2,500 pieces. Confirm the 'L' designation corresponds to the 2.5V full-scale internal reference and the 'X' code specifies the mid-scale power-on reset behavior for external reference configurations. Ensure the C-grade temperature rating (0°C to 70°C) meets the application requirements.

Selection Notes

Select this component when a compact dual-channel solution is required with an integrated reference to minimize board space. The 8-bit resolution is suitable for applications not requiring high precision. Verify that the 2.7V to 5.5V supply range aligns with the system power rails. Consider the external reference mode if a different full-scale voltage is needed than the integrated 2.5V option.

Part Context

This part belongs to the LTC2633 family, which offers various resolutions (8-, 10-, and 12-bit) and package options. The LTS8 suffix denotes the 8-lead ThinSOT™ (TSOT-23) plastic package. The 'C' grade indicates commercial temperature operation, while the 'H' grade would support automotive temperatures (-40°C to 125°C).

Replacement Considerations

Direct replacements within the same family include LTC2633CTS8-LZ8#TRPBF (zero-scale reset) or LTC2633CTS8-LI8#TRPBF (mid-scale reset in internal reference mode). For higher resolution, consider the LTC2633CTS8-LX10#TRPBF (10-bit) or LTC2633CTS8-LX12#TRPBF (12-bit), noting changes in linearity specifications.