LTC2636CDE-LMX10#TRPBF

Overview

The LTC2636CDE-LMX10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a 14-lead DFN package and operates on a single 2.7V to 5.5V supply. The device includes an integrated internal reference with a temperature coefficient of 10ppm/°C, though the 'MX' suffix indicates it is configured for external reference mode operation. It provides rail-to-rail output buffering, guaranteed monotonicity, and communicates via a 3-wire SPI/MICROWIRE interface with clock rates up to 50MHz. Power-on reset defaults to mid-scale in external reference mode.

Feature Summary

• Octal architecture with eight independent 10-bit DAC channels
• Integrated 10ppm/°C reference capability with selectable internal or external reference modes
• Rail-to-rail output buffers ensuring guaranteed monotonic operation
• 3-wire serial interface supporting clock rates up to 50MHz

Applications

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

Procurement Notes

Verify the specific ordering suffix requirements against the manufacturer's current documentation. Confirm that the tape and reel packaging specifications align with automated assembly needs. Ensure the external reference voltage source matches the required full-scale output range for the MX configuration.

Selection Notes

Select this part when eight simultaneous analog outputs are required in a compact footprint. The L-series designation supports lower supply voltages starting at 2.7V. Choose the MX variant if the system design relies on an external precision reference rather than the internal one. Verify thermal management requirements for the DFN package under maximum load conditions.

Part Context

This component belongs to the LTC2636 family, which offers various resolutions (8, 10, and 12 bits) and package options including MSOP. The CDE suffix denotes the commercial temperature grade (0°C to 70°C) and the 14-lead DFN physical form factor. Other variants exist with different reset behaviors and full-scale voltage configurations.

Replacement Considerations

Direct substitutes within the same family include LTC2636CDE-LMI10#TRPBF (internal reference reset) or LTC2636CDE-LZ10#TRPBF (zero-scale reset). Cross-package equivalents like the MSOP version require pinout adaptation.