LTC2635HMSE-LMX10#TRPBF

Overview

The LTC2635HMSE-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 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.

Feature Summary

• Quad 10-bit DACs with integrated 4.096V full-scale reference
• Automotive temperature grade (-40°C to 125°C)
• Power-on reset to mid-scale in external reference mode
• Ultralow crosstalk between DACs (3nV•s)

Applications

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

Procurement Notes

Verify the specific suffix configuration against official documentation to ensure correct power-on reset behavior and reference mode selection. Confirm that the operating supply voltage meets the minimum requirement of 4.5V for the H-grade variant. Ensure the I²C bus pull-up resistors are correctly sized for the desired clock speed.

Selection Notes

Select this part when a 4.096V internal reference is required alongside an external reference input capability. The LMX suffix indicates a power-on reset to mid-scale when using an external reference. For applications requiring zero-scale or high-impedance reset states, alternative suffixes such as LZ or LMO must be selected.

Part Context

This component belongs to the LTC2635 family of quad DACs available in 8-, 10-, and 12-bit resolutions. The HMSE designation identifies the H-grade automotive temperature version housed in a 10-lead MSOP package. Other variants include the C-grade commercial version and QFN package options.

Replacement Considerations

Direct replacements within the same family require matching the resolution (10-bit), package (MSOP), and temperature grade (H). Verify that any substitute shares the identical power-on reset configuration (LMX) and reference voltage characteristics.