LTC2635HMSE-LMX8#TRPBF

Overview

The LTC2635HMSE-LMX8#TRPBF is a quad 8-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 –40°C to 125°C automotive temperature range, and communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Power-on reset options include mid-scale for external reference mode.

Feature Summary

• Quad 8-Bit Resolution with Rail-to-Rail Output Buffers
• Integrated 2.5V Precision Reference (10ppm/°C)
• Automotive Temperature Grade (–40°C to 125°C)
• Power-On Reset to Mid-Scale in External Reference Mode

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Power Supply Margining
• Portable Equipment
• Automotive Systems

Procurement Notes

Verify the specific suffix LMX8 corresponds to the required power-on reset behavior (Mid-Scale in External Reference Mode) and confirm the MSE package type matches the PCB footprint requirements. Ensure the H-grade automotive rating aligns with the system's thermal specifications.

Selection Notes

Select this part for applications requiring four independent 8-bit outputs with low crosstalk (3nV•s). The L-series internal reference sets the full-scale voltage to 2.5V, suitable for 2.7V to 5.5V single-supply systems. Consider the H-grade if operation below 0°C is necessary.

Part Context

This component belongs to the LTC2635 family of quad DACs, which also offers 10-bit and 12-bit resolutions. The family shares common interfaces and features but varies in linearity error (±0.5 LSB for 8-bit vs ±2.5 LSB for 12-bit) and supply voltage ranges depending on the L or H series designation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.