LTC2636IMS-LMX12#TRPBF

Overview

The LTC2636IMS-LMX12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a 10ppm/°C integrated reference and operates on a single 2.7V to 5.5V supply. The device provides rail-to-rail output buffering and guarantees monotonicity over the –40°C to 85°C temperature range. Communication occurs via a 3-wire SPI/MICROWIRE interface with clock rates up to 50MHz. This specific variant includes power-on reset to mid-scale in external reference mode and is housed in a 16-lead MSOP package.

Feature Summary

• Octal architecture with eight independent 12-bit DAC channels
• Integrated 10ppm/°C precision reference for stable operation
• Power-on reset configured to mid-scale in external reference mode
• 3-wire serial interface supporting clock rates up to 50MHz

Applications

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

Procurement Notes

Verify the ordering suffix LMX12#TRPBF confirms the 16-lead MSOP package, 12-bit resolution, mid-scale external reference reset behavior, and tape-and-reel packaging quantity of 2500 units. Ensure the component grade matches the required industrial temperature range specifications.

Selection Notes

Select this part when eight synchronized voltage outputs are required with high linearity and low drift. The LMX suffix indicates mid-scale initialization suitable for applications where downstream circuits must remain active during power-up. Verify that the 2.7V to 5.5V supply range aligns with the system power architecture.

Part Context

This component belongs to the LTC2636 family of octal DACs, which offers various combinations of resolution, package type, and power-on reset behaviors. The IMS designation identifies the industrial temperature grade and MSOP footprint, distinguishing it from commercial DFN variants or different reset configurations within the same product line.

Replacement Considerations

Direct substitutes include other LTC2636 variants with matching pinouts but differing resolutions or reset modes, such as LTC2636IMS-LMI12#TRPBF for internal reference mid-scale reset. Cross-family replacements require verification of interface compatibility and thermal performance.