LTC2636IDE-LZ12#TRPBF

Overview

The LTC2636IDE-LZ12#TRPBF is an octal 12-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 2.5V. The device operates on a single supply ranging from 2.7V to 5.5V 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 industrial temperature range of –40°C to 85°C. The part is housed in a 14-lead DFN package.

Feature Summary

• Octal 12-bit resolution with ±2.5LSB maximum integral nonlinearity error
• Integrated 10ppm/°C reference yielding a 2.5V full-scale output
• Industrial temperature grade operating from –40°C to 85°C
• Power-on reset circuitry clears outputs to zero-scale upon initialization

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable instrumentation
• Automotive electronics
• Optical networking devices

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm that the DE package designation corresponds to the 14-lead DFN form factor. Ensure the LZ12 code matches the required zero-scale power-on reset behavior and 2.5V internal reference configuration for the design.

Selection Notes

Select this component when eight independent 12-bit channels are required within a compact footprint. The industrial temperature rating suits environments exceeding commercial limits. Verify that the 2.5V internal reference span meets system requirements; otherwise, consider external reference variants or higher voltage options like the H-series.

Part Context

This part belongs to the LTC2636 family of octal DACs available in 12-, 10-, and 8-bit resolutions. Variants differ by temperature grade (C, I, H), package type (DFN, MSOP), and power-on reset behavior (Zero-scale vs. Mid-scale). The IDE-LZ12 specifically denotes the Industrial grade, DFN package, Zero-scale reset, and 12-bit resolution.

Replacement Considerations

Direct substitutes include other LTC2636 variants with matching pinouts but different specifications, such as LTC2636CDE-LZ12 for commercial temperature or LTC2636HDE-LZ12 for automotive ranges. Cross-model replacements require verification of settling time, linearity, and supply voltage compatibility.