LTC2634CMSE-LMX10#TRPBF

Overview

The LTC2634CMSE-LMX10#TRPBF is a quad 10-bit voltage-output digital-to-analog converter (DAC) in a 10-lead MSOP package. 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 includes rail-to-rail output buffers, guaranteed monotonicity over the temperature range, and communicates via a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. Power-on reset defaults to mid-scale in external reference mode.

Feature Summary

• Quad 10-bit DACs with integrated 10ppm/°C precision reference
• Rail-to-rail output buffers with ultralow crosstalk (2.4nV•s)
• SPI/MICROWIRE compatible 3-wire serial interface operating at 50MHz
• Power-on reset to mid-scale in external reference mode

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive applications

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2,500 pieces. Confirm the MSE package designation corresponds to the 10-lead MSOP form factor. Ensure the LMX10 configuration matches the required mid-scale power-on reset behavior in external reference mode for system initialization requirements.

Selection Notes

Select this part for applications requiring four independent 10-bit channels with low drift. The 2.5V full-scale output suits single-supply systems operating between 2.7V and 5.5V. Choose this variant over H-grade parts if lower supply voltage operation is necessary. Verify that the MSOP package fits the PCB footprint constraints compared to the QFN option.

Part Context

This component belongs to the LTC2634 family of quad DACs, which also offers 8-bit and 12-bit resolutions. Variants exist with different full-scale voltages (2.5V or 4.096V) and power-on reset behaviors (zero-scale or mid-scale). The CMSE designation identifies the commercial temperature grade and MSOP package type within this product line.

Replacement Considerations

Direct substitutes include other LTC2634 variants with matching resolution and package, such as LTC2634CMSE-LMI10#TRPBF for internal reference mid-scale reset, or LTC2634CMSE-LZ10#TRPBF for zero-scale reset. Cross-family replacements like the LTC2635 offer I2C interfaces instead of SPI.