LTC2634HUD-LZ8#PBF

Overview

The LTC2634HUD-LZ8#PBF is a quad 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 2.5V and operates on 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 50MHz SPI/MICROWIRE compatible interface. Power-on reset defaults to zero-scale in internal reference mode.

Feature Summary

• Quad 8-bit DACs with integrated 10ppm/°C precision reference
• Rail-to-rail output buffers with ultralow crosstalk (2.4nV•s)
• AEC-Q100 qualified for automotive applications (-40°C to 125°C)
• SPI/MICROWIRE compatible 3-wire serial interface up to 50MHz

Applications

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

Procurement Notes

Verify the specific suffixes against official documentation to confirm package type, temperature grade, and power-on reset behavior. Ensure the ordering code matches the required resolution and reference configuration for the target application.

Selection Notes

Select this part for applications requiring automotive qualification and low-power operation. The 'L' suffix indicates a 2.5V full-scale output suitable for 2.7V to 5.5V supplies. The 'Z' suffix ensures outputs reset to zero-scale upon power-up.

Part Context

This component belongs to the LTC2634 family of quad DACs available in 12-, 10-, and 8-bit resolutions. Variants differ by full-scale voltage ('L' for 2.5V, 'H' for 4.096V), temperature grade ('C', 'I', 'H'), and power-on reset settings ('MI', 'MX', 'Z').

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.