LTC2636CMS-LMI8#TRPBF

Overview

The LTC2636CMS-LMI8#TRPBF is an octal, 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a rail-to-rail output buffer and an integrated 10ppm/°C reference with a full-scale output of 2.5V. The device operates on a single 2.7V to 5.5V supply and communicates via a 3-wire SPI/MICROWIRE interface supporting clock rates up to 50MHz. It includes double-buffered data latches and power-on reset to mid-scale. Packaged in a 16-lead MSOP, it guarantees monotonicity over the commercial temperature range of 0°C to 70°C.

Feature Summary

• Octal 8-Bit Resolution: Provides eight independent DAC channels with guaranteed monotonicity and ±0.5 LSB DNL.
• Integrated Reference: Features a high-accuracy internal reference yielding a 2.5V full-scale output with 10ppm/°C drift.
• Rail-to-Rail Output: Equipped with a rail-to-rail output buffer capable of driving capacitive loads up to 500pF.
• Power-On Reset: Configured for mid-scale reset upon power-up in internal reference mode.

Applications

• Process Control and Industrial Automation
• Portable Equipment
• Automotive Systems

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the C-grade designation aligns with the required 0°C to 70°C operating temperature range for the target application environment.

Selection Notes

Select this part when eight independent analog outputs are required within a compact 16-lead MSOP footprint. Ensure the system supply voltage remains between 2.7V and 5.5V. Verify that the 2.5V internal reference span meets the signal requirements or consider external reference variants if higher voltage spans are needed.

Part Context

This component belongs to the LTC2636 family, which offers 12-, 10-, and 8-bit resolutions in both DFN and MSOP packages. Variants differ by resolution, package type, temperature grade, and power-on reset behavior. The CMS-LMI8 specifically denotes the 8-bit resolution, MSOP package, commercial temperature grade, and mid-scale reset configuration.

Replacement Considerations

Direct substitutes include other LTC2636 variants such as LTC2636CMS-LMX8#TRPBF (external reference mode) or LTC2636CMS-LZ8#TRPBF (zero-scale reset). Cross-family replacements require verification of pin compatibility and electrical specifications.