LTC2635CUD-HZ10#PBF

Overview

The LTC2635CUD-HZ10#PBF is a quad 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a full-scale output of 4.096V and operates from 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. Maximum integral nonlinearity error is ±1 LSB.

Feature Summary

• Quad 10-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 suffix #PBF indicates lead-free construction. Confirm the UD package designation corresponds to the 16-pin QFN form factor. Ensure the H grade matches the required 4.5V to 5.5V supply voltage range for the 4.096V full-scale output.

Selection Notes

Select this part for applications requiring four independent DAC channels in a compact footprint. The H-grade variant is necessary for systems operating above 4.5V or requiring the 4.096V internal reference. Verify that the I²C address configuration pins (CA0-CA2) can be set to avoid bus conflicts.

Part Context

This component belongs to the LTC2635 family of quad DACs, which also includes 8-bit and 12-bit resolution variants. The 'H' suffix denotes the automotive temperature grade and higher voltage operation compared to the 'L' grade. The 'UD' suffix specifies the 16-lead plastic QFN package type.

Replacement Considerations

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