LTC2636HDE-HZ12#TRPBF

Overview

The LTC2636HDE-HZ12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features an integrated high-accuracy 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 includes rail-to-rail output buffers that are guaranteed monotonic over the –40°C to 125°C automotive temperature range. Communication is handled via a 3-wire SPI/MICROWIRE-compatible interface supporting clock rates up to 50MHz. The part incorporates a power-on reset circuit configured to clear outputs to zero-scale upon initialization.

Feature Summary

• Octal 12-bit resolution with ±2.5LSB maximum integral nonlinearity error
• Integrated 4.096V full-scale reference with 10ppm/°C drift
• Automotive grade operation from –40°C to 125°C
• Power-on reset to zero-scale for consistent system initialization

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment
• Automotive Systems
• Optical Networking

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel quantity of 2500 pieces. Confirm the DE package designation corresponds to the 14-lead DFN form factor. Ensure the H-grade specification matches the required 4.5V to 5.5V supply range and automotive temperature capabilities for the target application environment.

Selection Notes

Select this component when eight independent 12-bit channels are required with high precision and automotive reliability. The internal 4.096V reference eliminates the need for external components if this voltage level is suitable. Compare against LTC2636-L variants if a lower 2.7V–5.5V supply range or 2.5V full-scale output is needed instead.

Part Context

This part belongs to the LTC2636 family of octal DACs, which offers variations in resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and power-on reset behavior (zero-scale or mid-scale). The H suffix denotes the 4.096V internal reference version, while Z indicates the zero-scale reset configuration. The DE suffix specifies the 14-lead DFN package.

Replacement Considerations

Direct substitutes within the same family include other LTC2636 variants differing only in resolution, reset mode, or package type. For example, LTC2636HDE-MX12#TRPBF provides mid-scale reset in external reference mode. Cross-family replacements require verification of pin compatibility and electrical specifications.