LTC2636CMS-LZ8#TRPBF

Overview

The LTC2636CMS-LZ8#TRPBF is an octal, 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated internal reference with a temperature coefficient of 10ppm/°C and a full-scale output of 2.5V. The device operates on a single supply voltage ranging from 2.7V to 5.5V. It utilizes a 3-wire SPI/MICROWIRE-compatible serial interface for communication. The part includes double-buffered data latches and guarantees monotonicity over the specified temperature range. It is housed in a 14-lead DFN package.

Feature Summary

• Octal 8-Bit Resolution: Provides eight independent DAC channels with 8-bit resolution.
• Integrated Reference: Features a high-accuracy internal reference with 10ppm/°C drift, setting a 2.5V full-scale output.
• Rail-to-Rail Output: Equipped with rail-to-rail output buffers that are guaranteed monotonic.
• Power-On Reset: Configured to reset outputs to zero-scale upon power-up via the 'Z' suffix.

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment

Procurement Notes

Verify the specific ordering suffixes against the manufacturer's documentation to ensure correct package type, temperature grade, and power-on reset behavior. Confirm that the component matches the required electrical specifications for the target application environment.

Selection Notes

Select this component when an octal DAC configuration is required with low power consumption and high accuracy. The internal reference simplifies design by eliminating external reference components. Ensure the system supply voltage falls within the 2.7V to 5.5V range compatible with the LTC2636-L series.

Part Context

This part belongs to the LTC2636 family of octal DACs available in 12-, 10-, and 8-bit resolutions. Variants exist with different full-scale voltages (2.5V or 4.096V) and power-on reset behaviors (zero-scale or mid-scale). The CMS designation indicates a 16-lead MSOP package, while the LZ8 suffix specifies 8-bit resolution with zero-scale reset.

Replacement Considerations

Direct replacements within the same family include LTC2636CMS-LMI8#TRPBF (mid-scale reset) or LTC2636CMS-HZ8#TRPBF (4.096V full-scale). Verify pin compatibility and electrical parameter alignment before substitution.