LTC2635HUD-LMO10#PBF

Overview

The LTC2635HUD-LMO10#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 a temperature coefficient of 10ppm/°C. The device operates on a single supply ranging from 4.5V to 5.5V and communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It includes rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 125°C automotive temperature range, and a power-on reset circuit that sets outputs to a high-impedance state upon initialization.

Feature Summary

• Quad 10-bit resolution with ±1 LSB maximum INL error
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• Power-on reset to high-impedance state for safe startup
• Ultralow crosstalk between DAC channels (3nV•s typical)

Applications

• Process control and industrial automation systems
• Automotive electronic modules
• Portable equipment requiring low power consumption

Procurement Notes

Verify the specific ordering suffix LMO10#PBF against the manufacturer's current product selection guide to confirm package availability and lead time specifications. Ensure the design supports the required 4.5V to 5.5V supply voltage range for the H-grade variant.

Selection Notes

Select this part when a quad-channel DAC with automotive temperature rating (-40°C to 125°C) and a 4.096V internal reference is required. The LMO suffix indicates a specific power-on reset behavior where outputs enter a high-impedance state, which differs from zero-scale or mid-scale reset options available in other variants.

Part Context

This component belongs to the LTC2635 family of quad I²C DACs. The 'H' designation specifies the 4.096V full-scale output and 4.5V minimum supply requirement, distinguishing it from the 'L' variant which offers 2.5V full-scale and lower voltage operation. The 'UD' suffix denotes the 16-pin QFN package used in this part number.

Replacement Considerations

Direct substitutes within the same family include LTC2635HUZ10#PBF (zero-scale reset) or LTC2635HMSE-HZ10#TRPBF (MSOP package). Verify that the alternative part's power-on reset configuration matches the system safety requirements.