LTC2636CDE-HZ10#TRPBF

Overview

The LTC2636CDE-HZ10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. 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 4.5V to 5.5V supply and includes rail-to-rail output buffers guaranteed monotonic over the operating range. It communicates via a 3-wire SPI/MICROWIRE interface with clock rates up to 50MHz. Power-on reset defaults to zero-scale in internal reference mode. The component is housed in a 14-lead DFN package.

Feature Summary

• Octal 10-Bit Resolution: Provides eight independent DAC channels with 10-bit precision.
• Integrated Reference: Includes a 10ppm/°C internal reference yielding a 4.096V full-scale output.
• Rail-to-Rail Output: Features rail-to-rail output buffers for maximum dynamic range.
• SPI Interface: Supports 3-wire serial communication with SCK frequencies up to 50MHz.

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the DE package designation corresponds to the 14-lead DFN form factor. Ensure the HZ10 configuration matches the required 4.096V full-scale range and zero-scale power-on reset behavior for the target application design.

Selection Notes

Select this part when eight independent 10-bit outputs are required with a fixed 4.096V span. The H-grade ensures operation up to 125°C. Choose the C-grade if the environment remains within 0°C to 70°C. Verify that the 4.5V minimum supply voltage aligns with the system power rails. Consider the MSOP package if exposed pad soldering constraints favor a 16-lead option.

Part Context

This component belongs to the LTC2636 family of octal DACs. Variants differ by resolution (8, 10, or 12 bits), full-scale voltage (2.5V or 4.096V), and power-on reset state (zero-scale or mid-scale). The HZ10 specifically denotes the 10-bit resolution, 4.096V internal reference, and zero-scale reset configuration.

Replacement Considerations

Direct substitutes include other LTC2636 variants with matching pinouts but different resolutions or reset states, such as LTC2636CDE-HZ12#TRPBF (12-bit) or LTC2636CDE-LZ10#TRPBF (2.5V FSR). Cross-family replacements like the LTC2637 offer I2C interfaces instead of SPI.