LTC2635HUD-LZ8#TRPBF

Overview

The LTC2635HUD-LZ8#TRPBF is a quad 8-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 8-Bit Resolution with Integrated 4.096V Reference
• Automotive Temperature Range: –40°C to 125°C
• Rail-to-Rail Output Buffers with Guaranteed Monotonicity
• I²C Interface with Power-On Reset Options

Applications

• Process Control and Industrial Automation
• Power Supply Margining
• Portable Equipment

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates lead-free tape and reel packaging containing 2,500 pieces. Confirm the H-grade designation corresponds to the automotive temperature range and 4.5V minimum supply requirement. Ensure compatibility with the 16-pin QFN package specifications for PCB layout.

Selection Notes

Select this part for applications requiring four independent 8-bit DAC channels with a fixed 4.096V full-scale range. The H-grade ensures operation in harsh environments up to 125°C. Verify that the system supply voltage remains within the 4.5V to 5.5V window to meet electrical specifications.

Part Context

This component belongs to the LTC2635 family of quad DACs. The 'H' suffix denotes the automotive temperature grade and 4.096V internal reference configuration. The 'UD' indicates the 16-pin QFN package. The 'LZ8' specifies the zero-scale power-on reset behavior for the 8-bit resolution variant.

Replacement Considerations

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