LTC2636CDE-HZ12#TRPBF

Overview

The LTC2636CDE-HZ12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 4.096V and a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V. It utilizes a 3-wire SPI/MICROWIRE-compatible serial interface with clock rates up to 50MHz. Key specifications include a maximum integral nonlinearity error of ±2.5LSB, a settling time of 4.8µs at 12-bit resolution, and ultralow DAC-to-DAC crosstalk below 2.4nV•s. The unit is housed in a 14-lead DFN package.

Feature Summary

• Octal 12-bit architecture with rail-to-rail output buffers
• Integrated 4.096V precision reference with 10ppm/°C drift
• Power-on reset to zero-scale for consistent initialization
• Ultralow crosstalk between channels (<2.4nV•s)

Applications

• Process control and industrial automation systems
• Automatic test equipment requiring multi-channel precision
• Mobile communications infrastructure
• Optical networking applications

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the C-grade designation matches the required commercial operating temperature range of 0°C to 70°C. Ensure the H-series designation aligns with the necessary 4.5V to 5.5V supply voltage requirements for the 4.096V full-scale output.

Selection Notes

Select this part when eight independent 12-bit outputs are required within a compact footprint. The internal 4.096V reference eliminates the need for external components, reducing board space. Choose the HZ variant specifically if a zero-scale power-on reset state is mandatory for system safety or initialization protocols. Verify that the 50MHz serial clock speed meets the data throughput requirements of the host controller.

Part Context

This component belongs to the LTC2636 family, which offers various resolutions (8, 10, and 12 bits) and package options including MSOP. The DE suffix denotes the 14-lead DFN package, while the HZ suffix specifies the 4.096V full-scale range and zero-scale power-on reset behavior. Other variants in the series may offer mid-scale resets or different supply voltage ranges.

Replacement Considerations

Direct substitutes within the same family include LTC2636CDE-LZ12#TRPBF for lower voltage operation or LTC2636IMS-HZ12#PBF for a different package type. Cross-family replacements require verification of pin compatibility, serial interface timing, and reference voltage specifications.