LTC2636IDE-HMI8#TRPBF

Overview

The LTC2636IDE-HMI8#TRPBF is an octal 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features an integrated high-accuracy reference with a temperature coefficient of 10ppm/°C, providing a full-scale output of 2.5V. The device operates on a single supply ranging from 2.7V to 5.5V and includes rail-to-rail output buffers. It communicates via a 3-wire SPI/MICROWIRE-compatible interface with clock rates up to 50MHz. This specific variant belongs to the 'I' grade for industrial temperature range (-40°C to 85°C), uses the MSOP package, and is configured for power-on reset to mid-scale in internal reference mode.

Feature Summary

• Octal architecture with eight independent 8-bit DAC channels
• Integrated 10ppm/°C precision reference yielding 2.5V full-scale output
• Industrial temperature rating (-40°C to 85°C)
• Power-on reset to mid-scale in internal reference mode

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics
• Optical networking devices

Procurement Notes

Verify that the component matches the specified industrial temperature grade and MSOP package configuration. Confirm the ordering suffix indicates tape and reel packaging. Ensure the part number corresponds to the 8-bit resolution variant with internal reference mid-scale reset behavior as defined in the manufacturer's selection guide.

Selection Notes

Select this model when eight simultaneous low-resolution outputs are required within an industrial environment. The 2.5V internal reference simplifies design by eliminating external reference components. Choose this over the H-grade version if operation below 4.5V supply voltage is necessary, or if the zero-scale/mid-scale reset options better suit system initialization requirements compared to other family members.

Part Context

This component is part of the LTC2636 family, which offers 8-, 10-, and 12-bit resolutions. The 'I' designation specifies the industrial temperature range, distinguishing it from commercial (C) and automotive/high-temperature (H) grades. The 'MS' indicates the 16-lead MSOP package, while 'HMI' denotes the 2.5V full-scale option with mid-scale power-on reset in internal reference mode.

Replacement Considerations

Direct substitutes within the same family include LTC2636ICE-HMI8#TRPBF (DFN package) or variants with different resolutions like LTC2636IDE-HMI10#TRPBF. Cross-package replacements require verifying pin compatibility, particularly the presence of CLR and LDAC pins in the MSOP versus DFN packages.