LTC2635HMSE-LMX10#PBF

Overview

The LTC2635HMSE-LMX10#PBF 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 4.096V and operates from a single 4.5V 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 10-bit DACs with integrated 4.096V precision reference (±10ppm/°C)
• Automotive temperature grade: –40°C to 125°C
• Rail-to-rail output buffers with low crosstalk (3nV•s)
• I²C interface with selectable power-on reset to mid-scale

Applications

• Process control and industrial automation
• Power supply margining
• Portable equipment

Procurement Notes

Verify the specific ordering suffix LMX10#PBF against the manufacturer's current product selection guide to confirm availability and exact pinout configuration. Ensure the application circuit supports the required 4.5V to 5.5V supply voltage range for the H-grade variant.

Selection Notes

Select this part for applications requiring four independent 10-bit outputs with high accuracy and automotive reliability. The LMX suffix indicates reset to mid-scale in external reference mode; choose LZ or MI suffixes if zero-scale or internal reference mid-scale reset is preferred. Ensure the PCB layout accommodates the 10-lead MSOP package dimensions.

Part Context

This component belongs to the LTC2635 family of quad DACs, which also offers 8-bit and 12-bit resolutions. The H-grade designation specifies the 4.096V full-scale output and extended temperature range, distinguishing it from the L-grade 2.5V version. The MSE package provides a compact surface-mount solution compared to the 16-pin QFN option.

Replacement Considerations

Direct replacements within the same family include LTC2635HMSE-LZ10#PBF (zero-scale reset) or LTC2635HMSE-MI10#PBF (internal reference mid-scale reset). Verify that the alternative suffix meets the specific power-on state requirements of the system design.