LTC2636CDE-LZ8#TRPBF

Overview

The LTC2636CDE-LZ8#TRPBF is an octal 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a 10ppm/°C temperature coefficient, providing a full-scale output of 2.5V. The device operates on a single 2.7V to 5.5V supply and utilizes a 3-wire SPI/MICROWIRE-compatible serial interface with clock rates up to 50MHz. It includes double-buffered data latches and guarantees monotonicity over the operating range. The part is housed in a 14-lead DFN package and incorporates a power-on reset circuit that defaults outputs to zero-scale.

Feature Summary

• Octal 8-Bit Resolution: Provides eight independent DAC channels with 8-bit resolution.
• Integrated Precision Reference: Features a 10ppm/°C internal reference for a 2.5V full-scale output.
• Rail-to-Rail Output: Equipped with rail-to-rail output buffers guaranteed monotonic over the temperature range.
• Power-On Reset: Resets all DAC outputs to zero-scale upon power-up.

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the DE suffix corresponds to the 14-lead DFN package type. Ensure the LZ designation matches the required zero-scale power-on reset behavior for the application design.

Selection Notes

Select this component when eight low-cost, 8-bit voltage outputs are required with an integrated reference. The LZ suffix ensures zero-scale initialization, which is critical for systems sensitive to nonzero outputs during power-up. Verify that the 2.5V full-scale range and 2.7V–5.5V supply voltage align with system constraints.

Part Context

This part belongs to the LTC2636 family of octal DACs available in 12-, 10-, and 8-bit resolutions. The C grade specifies a commercial temperature range of 0°C to 70°C. The DE package denotes the 14-lead plastic DFN form factor. Other variants in the family include different resolutions, reset behaviors (mid-scale), and full-scale voltages (4.096V).

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. Designers should consult Analog Devices marketing or technical support for alternative components with compatible pinouts and specifications.