LTC2635HUD-LMX10#PBF

Overview

The LTC2635HUD-LMX10#PBF is a quad 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features an integrated precision reference with a full-scale output of 4.096V and a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V. It 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 resolution with ±1 LSB maximum INL error
• Integrated 4.096V precision reference (10ppm/°C)
• Automotive temperature grade (–40°C to 125°C)
• Power-on reset to mid-scale in external reference mode

Applications

• Process control and industrial automation
• Portable equipment
• Automotive systems

Procurement Notes

Verify the specific suffix 'LMX' indicates power-on reset to mid-scale in external reference mode. Confirm the 'H' designation for the 4.5V to 5.5V supply range and 'UD' package type corresponds to the 16-pin QFN form factor. Ensure the '#PBF' suffix confirms lead-free compliance as per manufacturer standards.

Selection Notes

Select this part when a 4.096V full-scale output is required with an external reference configuration. The LMX suffix ensures outputs reset to mid-scale upon power-up in external reference mode. Verify that the system supply voltage remains within the 4.5V to 5.5V range to meet specified performance parameters.

Part Context

This component belongs to the LTC2635 family of quad DACs, which also includes 8-bit and 12-bit variants. The 'H' grade distinguishes it from the 'L' grade by providing a higher full-scale voltage (4.096V vs 2.5V) and requiring a minimum supply voltage of 4.5V. The 'UD' package denotes the 16-lead QFN housing.

Replacement Considerations

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