LTC2634HUD-HMI10#PBF

Overview

The LTC2634HUD-HMI10#PBF is a quad 10-bit voltage output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 4.096V and operates on 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 50MHz SPI/MICROWIRE compatible 3-wire serial interface. Power-on reset defaults to mid-scale in internal reference mode.

Feature Summary

• Quad 10-bit resolution with ±1 LSB maximum INL error
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• AEC-Q100 qualified for automotive applications (-40°C to 125°C)
• Rail-to-rail output buffers with ultralow crosstalk (2.4nV•s)

Applications

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

Procurement Notes

Verify the H-grade designation confirms the -40°C to 125°C operating range and 4.5V minimum supply requirement. Confirm the #PBF suffix indicates lead-free compliance and the MI10 suffix specifies 10-bit resolution with mid-scale power-on reset in internal reference mode.

Selection Notes

Select this part when a 4.096V full-scale range is required with high accuracy. Ensure the system supply voltage remains between 4.5V and 5.5V. Consider the QFN package if SDO, CLR, and LDAC pins are needed for daisy-chaining or hardware control.

Part Context

This component belongs to the LTC2634 family, which offers 8-, 10-, and 12-bit resolutions in both QFN and MSOP packages. The HUD suffix identifies the 16-lead QFN package, while the H grade denotes the extended automotive temperature range compared to commercial or industrial grades.

Replacement Considerations

Direct substitutes within the same family include LTC2634IUD-HMI10#PBF for industrial temperature ranges or LTC2634CUD-HMI10#PBF for commercial ranges. For different resolutions, consider LTC2634HUD-HMX10#PBF if external reference operation is preferred.