LTC2635HUD-HZ12#TRPBF

Overview

The LTC2635HUD-HZ12#TRPBF is a quad 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in a 16-lead QFN package. 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 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes.

Feature Summary

• Quad 12-bit resolution with maximum INL error of ±2.5 LSB
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• Automotive temperature grade (-40°C to 125°C)
• Power-on reset options including zero-scale, mid-scale, or high-impedance

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates lead-free tape and reel packaging containing 2,500 pieces. Confirm the H-grade designation matches the required 4.5V to 5.5V supply range and automotive temperature specifications for the target application environment.

Selection Notes

Select this part when four independent 12-bit channels are required with a fixed 4.096V internal reference. Ensure the system supply voltage remains within the 4.5V to 5.5V range. Consider the L-grade variant if a 2.7V to 5.5V supply range or 2.5V full-scale output is needed instead.

Part Context

This component belongs to the LTC2635 family of quad DACs. The HUD suffix denotes the 16-pin QFN package, H indicates the automotive temperature grade and 4.096V reference, Z specifies power-on reset to zero-scale, and 12 defines the 12-bit resolution.

Replacement Considerations

Public confirmed substitute part numbers: LTC2635CUD-HZ12#TRPBF (Commercial grade), LTC2635HMI12 (Mid-scale reset). Verify package compatibility and temperature range requirements before substitution.