LTC2635HUD-HZ8#TRPBF

Overview

The LTC2635HUD-HZ8#TRPBF is a quad 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc., featuring an integrated precision reference with a temperature coefficient of 10ppm/°C. The 'H' grade specifies a full-scale output of 4.096V and requires a supply voltage between 4.5V and 5.5V. It utilizes a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. The device includes rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 125°C automotive temperature range, and a power-on reset circuit configured to zero-scale.

Feature Summary

• Quad 8-Bit Resolution with Integrated 10ppm/°C Reference
• 4.096V Full-Scale Output Operating on 4.5V to 5.5V Supply
• I2C Interface with Standard (100kHz) and Fast (400kHz) Modes
• Power-On Reset to Zero-Scale in Internal Reference Mode

Applications

• Automotive Systems
• Process Control and Industrial Automation
• Portable Equipment

Procurement Notes

Verify that the specific ordering suffix #TRPBF corresponds to the tape and reel packaging format as defined in the manufacturer's documentation. Confirm that the H-grade designation aligns with the required 4.5V to 5.5V supply voltage range for the application environment.

Selection Notes

Select this component when a quad-channel DAC with 8-bit resolution and an internal 4.096V reference is required for automotive or industrial applications. Ensure the system operates within the 4.5V to 5.5V supply range and utilizes an I2C bus. Verify that the zero-scale power-on reset behavior meets the initial state requirements of the connected circuitry.

Part Context

This part belongs to the LTC2635 family of quad DACs available in 12-, 10-, and 8-bit resolutions. The HUD package indicates a 16-lead QFN form factor. The H suffix denotes the high-voltage reference variant (4.096V), while Z indicates the power-on reset configuration. The TRPBF suffix specifies lead-free tape and reel packaging.

Replacement Considerations

Direct replacements within the same family include other LTC2635 variants with different resolutions (LTC2635-10, LTC2635-12) or reset configurations (LMX, LMO). Cross-family substitutes require verification of pin compatibility and electrical specifications.