LTC2632CTS8-LX10#TRPBF

Overview

The LTC2632CTS8-LX10#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 supply voltage ranging from 2.7V to 5.5V. The device utilizes a 3-wire SPI/MICROWIRE compatible serial interface for communication. A key characteristic is its power-on reset configuration, where the 'X' suffix indicates that outputs reset to mid-scale in external reference mode upon power-up. The component is housed in an 8-lead TSOT-23 package.

Feature Summary

• Dual 10-bit DACs with rail-to-rail output buffers
• Integrated 2.5V full-scale reference with 10ppm/°C drift
• Power-on reset to mid-scale in external reference mode
• 3-wire serial interface supporting clock rates up to 50MHz

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment

Procurement Notes

Verify the specific ordering suffix '#TRPBF' corresponds to the tape and reel packaging quantity defined in the manufacturer's documentation. Confirm that the 'LX' power-on reset behavior aligns with system initialization requirements, as it differs from internal reference reset modes. Ensure the commercial temperature grade (0°C to 70°C) meets the operational environment specifications.

Selection Notes

Select this part when a dual-channel DAC with 10-bit resolution is required alongside a mid-scale power-on state for external reference configurations. The 2.7V to 5.5V supply range supports low-voltage operation. Compare against 'LI' variants if internal reference mid-scale reset is preferred, or 'LZ' variants if zero-scale reset is necessary for safety-critical applications.

Part Context

This component belongs to the LTC2632 family of dual DACs available in 8-, 10-, and 12-bit resolutions. The 'CTS8' designation identifies the commercial temperature grade and 8-lead TSOT-23 plastic package. The 'LX' code specifically configures the power-on reset logic for external reference usage, distinguishing it from other reset options within the same package and grade.

Replacement Considerations

Direct substitutes include other LTC2632 variants with different resolutions or reset behaviors, such as LTC2632CTS8-LI10#TRPBF or LTC2632CTS8-LZ10#TRPBF, provided the reset function and resolution differences are acceptable for the design.