LTC2636HDE-HZ8#TRPBF

Overview

The LTC2636HDE-HZ8#TRPBF is an octal 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated high-accuracy reference with a temperature coefficient of 10ppm/°C, providing a full-scale output of 4.096V. The device operates on a single 4.5V to 5.5V supply and includes rail-to-rail output buffers guaranteed monotonic over the automotive temperature range of –40°C to 125°C. Communication is handled via a 3-wire SPI/MICROWIRE-compatible interface supporting clock rates up to 50MHz. Power-on reset defaults to zero-scale in internal reference mode.

Feature Summary

• Octal 8-Bit Resolution: Eight independent DAC channels with 8-bit resolution.
• Integrated Reference: Internal 10ppm/°C reference yielding 4.096V full-scale output.
• Automotive Grade: Operates within –40°C to 125°C temperature range.
• Power-On Reset: Resets outputs to zero-scale upon power-up.

Applications

• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment

Procurement Notes

Verify the specific ordering 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 H-grade specification matches the required 4.5V to 5.5V supply voltage constraints for your application design.

Selection Notes

Select this part when eight isolated analog outputs are required with moderate precision. The H-series variant necessitates a minimum 4.5V supply, distinguishing it from the L-series which supports 2.7V. The Z-suffix ensures zero-scale initialization, suitable for systems where safe startup states are critical. Verify thermal management requirements for the DFN package under maximum load conditions.

Part Context

This component belongs to the LTC2636 family of octal DACs. Variants differ by resolution (8, 10, or 12 bits), package type (DFN or MSOP), and temperature grade (C, I, or H). The HDE-HZ8 configuration specifically combines the automotive temperature rating, DFN package, and zero-scale reset feature.

Replacement Considerations

LTC2636HDE-HZ8#PBF (Tube Packaging)

FAQ

What is the full-scale output voltage?

The full-scale output voltage is 4.096V when using the internal reference.

How does the device handle power-up states?

The LTC2636HDE-HZ8 resets all DAC outputs to zero-scale upon power-up.

What is the operating supply voltage range?

The device requires a supply voltage between 4.5V and 5.5V.