LTC2636HMS-LMX10#PBF

Overview

The LTC2636HMS-LMX10#PBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a temperature coefficient of 10ppm/°C, providing a full-scale output of 4.096V. The device operates on a single supply voltage ranging from 4.5V to 5.5V and communicates via an SPI/MICROWIRE-compatible 3-wire serial interface supporting clock rates up to 50MHz. It includes double-buffered data latches and a power-on reset circuit configured to set outputs to mid-scale in external reference mode upon initialization.

Feature Summary

• Octal architecture with 10-bit resolution and rail-to-rail output buffers
• Integrated 10ppm/°C precision reference yielding 4.096V full-scale output
• SPI/MICROWIRE compatible 3-wire serial interface with 50MHz clock rate
• Power-on reset to mid-scale in external reference mode

Applications

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

Procurement Notes

Verify the package type corresponds to the MSOP-16 variant as indicated by the 'MS' suffix in the part number. Confirm that the specific ordering suffix matches the required power-on reset behavior and reference mode configuration documented in the manufacturer's selection guide. Ensure compatibility with the specified 4.5V to 5.5V supply range for the H-grade automotive temperature version.

Selection Notes

Select this component when eight independent 10-bit DAC channels are required with high accuracy and low drift. The H-grade designation indicates suitability for automotive applications operating between –40°C and 125°C. Choose the LMX10 variant specifically if mid-scale output initialization in external reference mode is necessary for system safety or startup requirements.

Part Context

This part belongs to the LTC2636 family of octal DACs available in 12-, 10-, and 8-bit resolutions. The family offers various combinations of full-scale voltages (2.5V or 4.096V) and power-on reset behaviors. The MSOP package provides additional hardware control pins for LDAC and CLR compared to the DFN package.

Replacement Considerations

Compatible substitutes within the same family include LTC2636HMS-LMI10#PBF (internal reference reset) and LTC2636HMS-HZ10#PBF (zero-scale reset). For different resolutions, consider LTC2636HMS-LMX12#PBF or LTC2636HMS-LMX8#PBF.