LTC2636HMS-HZ12#TRPBF

Overview

The LTC2636HMS-HZ12#TRPBF is an octal 12-bit voltage-output DAC from Analog Devices, housed in a 16-lead MSOP package. It features an integrated 4.096V full-scale reference with a 10ppm/°C temperature coefficient. The device operates on a single 4.5V to 5.5V supply and includes rail-to-rail output buffers guaranteed monotonic over the –40°C to 125°C automotive temperature range. Communication is handled via a 50MHz SPI/MICROWIRE-compatible 3-wire serial interface. Power-on reset defaults to zero-scale in internal reference mode.

Feature Summary

• Octal architecture with 12-bit resolution and rail-to-rail output buffers
• Integrated 4.096V precision reference with ±10ppm/°C drift
• Automotive grade operation from –40°C to 125°C
• Power-on reset to zero-scale for consistent initialization

Applications

• Process control and industrial automation systems
• Automatic test equipment requiring multi-channel precision
• Portable battery-powered instrumentation
• Optical networking signal generation

Procurement Notes

Verify the H-grade suffix confirms the –40°C to 125°C operating range and 4.5V minimum supply requirement. Confirm the MS package designation matches the 16-lead MSOP footprint. Ensure the Z12 suffix aligns with the zero-scale power-on reset behavior and 12-bit resolution specifications required by the design.

Selection Notes

Select this part when eight independent channels are needed in a compact surface-mount form factor. The H-grade variant is necessary for high-temperature automotive or industrial environments. The 4.096V internal reference eliminates external component count compared to external reference designs. Verify that the 4.5V minimum supply voltage is compatible with the system power rails.

Part Context

This component belongs to the LTC2636 family of octal DACs. The H suffix denotes the 4.096V full-scale range and automotive temperature rating, while MS indicates the 16-lead MSOP package. The Z12 suffix specifies 12-bit resolution and zero-scale power-on reset. Other variants include L-grade (commercial temp) and MI/MX reset options.

Replacement Considerations

Direct pin-compatible replacements within the same family include LTC2636IMS-HZ12#TRPBF (DFN package) or different reset configurations like LTC2636IMS-HMI12#TRPBF. Cross-family substitutes require verification of pinout compatibility and electrical parameter alignment.