LTC2636CMS-LMI10#PBF

Overview

The LTC2636CMS-LMI10#PBF is an octal 10-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 2.5V. The device operates on a single supply voltage ranging from 2.7V to 5.5V and utilizes a 3-wire SPI/MICROWIRE-compatible serial interface with clock rates up to 50MHz. It includes double-buffered data latches and guarantees monotonicity over the commercial temperature range of 0°C to 70°C. The component is housed in a 16-lead MSOP package.

Feature Summary

• Octal architecture with 10-bit resolution per channel
• Integrated 10ppm/°C reference yielding 2.5V full-scale output
• Rail-to-rail output buffers guaranteed monotonic
• Double-buffered data latches for simultaneous updates

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment

Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free construction. Confirm the MS package designation corresponds to the 16-lead MSOP form factor. Ensure the C grade matches the required 0°C to 70°C operating temperature range for the target application environment.

Selection Notes

Select this part when eight independent 10-bit channels are required within a compact footprint. The internal 2.5V reference simplifies design by eliminating external components. Choose the MSOP package if exposed pad soldering constraints favor surface-mount leads over DFN. Verify that the 50MHz serial clock speed meets system timing requirements.

Part Context

This component belongs to the LTC2636 family, which offers variations in resolution (8, 10, or 12 bits), power-on reset behavior, and supply voltage ranges. The CMS variant specifically denotes the commercial temperature grade and MSOP packaging, distinguishing it from the DFN-based DE variants or industrial/h-grade parts.

Replacement Considerations

Direct substitutes include other LTC2636 variants with matching pinouts such as LTC2636CMS-LMX10#PBF or LTC2636CMS-LZ10#PBF, provided the power-on reset behavior aligns with system needs. Cross-family replacements require verification of serial interface compatibility and output buffer specifications.