LTC2633CTS8-LZ10#TRPBF

Overview

The LTC2633CTS8-LZ10#TRPBF is a dual 10-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 operates on 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 specifications include rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 125°C temperature range, and a power-on reset function that initializes outputs to zero-scale. The component is housed in an 8-lead TSOT-23 package.

Feature Summary

• Dual 10-bit DACs with integrated 2.5V full-scale precision reference
• I²C interface with selectable standard (100kHz) and fast (400kHz) clock rates
• Power-on reset to zero-scale for consistent system initialization
• Rail-to-rail output buffers with guaranteed monotonicity

Applications

• Mobile communications
• Process control and industrial automation
• Power supply margining
• Portable equipment
• Automotive systems

Procurement Notes

Verify the specific suffix #TRPBF indicates a tape and reel packaging configuration containing 2,500 pieces. Confirm the C grade corresponds to the commercial temperature range of 0°C to 70°C as defined in the ordering information table. Ensure the LZ code aligns with the required zero-scale power-on reset behavior for the application design.

Selection Notes

Select this part when a dual-channel DAC with low pin count is required. The LTS8 package offers an 8-lead ThinSOT form factor suitable for space-constrained designs. Choose the L variant for 2.7V to 5.5V operation; use the H variant if a 4.096V full-scale output or 4.5V minimum supply is necessary. Verify that the 10-bit resolution meets the system accuracy requirements compared to the 8-bit or 12-bit options.

Part Context

This component belongs to the LTC2633 family of dual DACs. Variants within the family differ by resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and power-on reset behavior. The C grade denotes commercial temperature performance, while the H grade supports automotive conditions. The specific model combines 10-bit resolution with the zero-scale reset option.

Replacement Considerations

Direct substitutes within the same family include LTC2633CTS8-LI10#TRPBF for mid-scale reset or LTC2633CTS8-HZ10#TRPBF for higher voltage operation. Cross-family replacements like the LTC2635 offer quad channels but require different packaging and pinout considerations.