LTC2636HDE-HMX10#TRPBF

Overview

The LTC2636HDE-HMX10#TRPBF is an octal 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 operates on a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers guaranteed monotonic over the –40°C to 125°C automotive temperature range. Communication occurs via a 3-wire SPI/MICROWIRE interface supporting clock rates up to 50MHz. Power-on reset defaults to mid-scale in external reference mode. It is housed in a 14-lead 4mm × 3mm DFN package.

Feature Summary

• Octal 10-bit resolution with 4.096V full-scale internal reference
• Automotive grade operation from –40°C to 125°C
• Rail-to-rail output buffers with ultralow crosstalk (<2.4nV•s)
• Power-on reset to mid-scale in external reference mode

Applications

• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems

Procurement Notes

Verify the H-grade designation confirms the –40°C to 125°C operating range and 4.5V minimum supply requirement. Confirm the DE suffix indicates the 14-lead DFN package. Ensure the TRPBF suffix matches the required tape and reel quantity. Cross-reference the specific power-on reset behavior for external reference mode applications.

Selection Notes

Select this part when eight independent DAC channels are required in a compact footprint. The H-grade variant is necessary for high-temperature automotive or industrial environments. The 4.096V full-scale output suits applications requiring higher voltage swings than the 2.5V L-grade version. Verify that the 4.5V minimum supply voltage aligns with the system power architecture.

Part Context

This component belongs to the LTC2636 family, which offers octal DACs in 12-, 10-, and 8-bit resolutions. Variants include the C-grade (commercial), I-grade (industrial), and H-grade (automotive). Package options are limited to 14-lead DFN and 16-lead MSOP. The HDE suffix specifically denotes the H-grade temperature rating and DFN packaging.

Replacement Considerations

Public confirmed substitute part numbers: None.