LTC2636CMS-LZ10#TRPBF

Overview

The LTC2636CMS-LZ10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated 10ppm/°C reference providing a 2.5V full-scale output and operates on a single 2.7V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity, and double-buffered data latches. Communication occurs via a 3-wire SPI/MICROWIRE interface with clock rates up to 50MHz. This specific variant resets to zero-scale upon power-up and is housed in a 14-lead DFN package.

Feature Summary

• Octal 10-Bit Resolution: Provides eight independent DAC channels with ±1 LSB integral nonlinearity error.
• Integrated Reference: Includes a high-accuracy internal reference yielding a 2.5V full-scale output with ±10 ppm/°C drift.
• Zero-Scale Power-On Reset: Outputs reset to zero-scale upon power-up to ensure consistent system initialization.
• Low Power Consumption: Draws 0.9mA at 3V supply voltage and supports power-down modes for reduced current draw.

Applications

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

Procurement Notes

Verify the component matches the exact ordering suffix #TRPBF for tape and reel packaging. Confirm the manufacturer is Analog Devices Inc. Ensure the part number corresponds to the commercial temperature grade (C) and 10-bit resolution (10). Cross-reference the datasheet revision to confirm pinout and electrical specifications align with design requirements.

Selection Notes

Select this part when eight independent 10-bit voltage outputs are required within a compact footprint. The internal 2.5V reference simplifies design by eliminating external components. Choose the LZ suffix if a zero-scale power-on state is necessary for safety or initialization. Verify that the 2.7V to 5.5V supply range fits the system power architecture.

Part Context

This component belongs to the LTC2636 family of octal DACs available in 8-, 10-, and 12-bit resolutions. Variants differ by full-scale voltage (2.5V for L-grade, 4.096V for H-grade), power-on reset behavior (Z for zero-scale, MI/MX for mid-scale), and package type (DFN or MSOP). The CMS designation indicates the MSOP package, but the provided datasheet confirms the DE package is used for the LZ series in standard configurations; verify package compatibility.

Replacement Considerations

Direct substitutes include other LTC2636 variants with matching resolution and reset behavior, such as LTC2636CDE-LZ10#TRPBF if DFN packaging is acceptable. Ensure replacement parts maintain the same 10-bit resolution, 2.5V full-scale output, and zero-scale power-on reset characteristics.