LTC2636HDE-LZ8#TRPBF

Overview

The LTC2636HDE-LZ8#TRPBF is an octal, 8-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 utilizes a 3-wire SPI/MICROWIRE-compatible serial interface with clock rates up to 50MHz. It includes rail-to-rail output buffers guaranteed monotonic over the –40°C to 125°C automotive temperature range. Power-on reset defaults to zero-scale in internal reference mode.

Feature Summary

• Octal architecture with 8 independent 8-bit DAC channels
• Integrated 10ppm/°C reference providing 4.096V full-scale output
• Automotive grade operation from –40°C to 125°C
• Rail-to-rail output buffers with ultralow crosstalk (<2.4nV•s)

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the DE package designation corresponds to the 14-lead DFN form factor. Ensure the LZ power-on reset configuration matches system initialization requirements for zero-scale outputs.

Selection Notes

Select this part when eight isolated analog outputs are required within automotive thermal constraints. The H-grade variant necessitates a minimum 4.5V supply, distinguishing it from L-grade parts that operate at 2.7V. Verify compatibility with the 3-wire serial interface timing specifications before integration.

Part Context

This component belongs to the LTC2636 family of octal DACs. Variants differ by resolution (8, 10, or 12 bits), supply voltage range (L vs H grades), and package type (DFN vs MSOP). The HDE-LZ8 specifically denotes the high-voltage, DFN package, zero-scale reset, 8-bit resolution configuration.

Replacement Considerations

Public confirmed substitute part numbers: None.