LTC2636IMS-HMX10#PBF

Overview

The LTC2636IMS-HMX10#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 utilizes a 3-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. It includes rail-to-rail output buffers, guaranteed monotonicity over the industrial temperature range of –40°C to 85°C, and a power-on reset circuit configured to set outputs to mid-scale in external reference mode.

Feature Summary

• Octal architecture with eight independent 10-bit DAC channels in a 16-lead MSOP package
• Integrated 10ppm/°C precision reference yielding a 4.096V full-scale output
• Power-on reset to mid-scale in external reference mode (HMX suffix)
• SPI/MICROWIRE compatible 3-wire serial interface operating at 50MHz

Applications

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

Procurement Notes

Verify the specific ordering suffix HMX10#PBF against the manufacturer's current documentation to confirm the package type, temperature grade, and reset configuration. Ensure that the external reference mode selection aligns with system power-up requirements, as this variant resets to mid-scale when an external reference is used.

Selection Notes

Select this component for designs requiring multiple low-drift voltage outputs within a compact footprint. The H-grade ensures operation across the automotive temperature range of –40°C to 125°C. Verify that the supply voltage remains between 4.5V and 5.5V to meet specified performance parameters for the 4.096V full-scale output.

Part Context

This part belongs to the LTC2636 family of octal DACs, which also offers 12-bit and 8-bit resolutions. Variants are available with different full-scale voltages (2.5V or 4.096V) and power-on reset behaviors (zero-scale or mid-scale). The IMS designation indicates the 16-lead MSOP package and industrial temperature rating.

Replacement Considerations

Direct substitutes within the same family include LTC2636IMS-LMX10#PBF for 2.5V full-scale or LTC2636IMS-HMI10#PBF for internal reference mid-scale reset. Cross-family replacements like the LTC2637 offer I2C interfaces instead of SPI.