LTC2636IMS-LZ10#PBF

Overview

The LTC2636IMS-LZ10#PBF 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 over the –40°C to 85°C industrial temperature range, and a power-on reset to zero-scale. Communication is handled via a 3-wire SPI/MICROWIRE interface with clock rates up to 50MHz. It is housed in a 16-lead MSOP package.

Feature Summary

• Octal 10-Bit Resolution with Integrated 10ppm/°C Reference
• Rail-to-Rail Output Buffers Guaranteed Monotonic
• Power-On Reset to Zero-Scale
• 3-Wire SPI/MICROWIRE Interface up to 50MHz

Applications

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

Procurement Notes

Verify the specific ordering suffix #PBF indicates lead-free design compliance. Confirm the IMS designation corresponds to the Industrial temperature grade (-40°C to 85°C) and the MSOP package type. Ensure the LZ10 suffix matches the required 10-bit resolution and zero-scale power-on reset behavior for the intended application.

Selection Notes

Select this part when eight independent 10-bit DAC channels are required with low drift and high accuracy. The internal 2.5V reference simplifies design by eliminating external components. Choose the MSOP package if hardware clear (CLR) and asynchronous update (LDAC) pins are needed, as these are exclusive to the 16-lead variant compared to the DFN package.

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), temperature grade (Commercial, Industrial, Automotive), and package type (DFN or MSOP). The IMS-LZ10 specifically denotes the Industrial grade, MSOP package, 10-bit resolution, and zero-scale reset configuration.

Replacement Considerations

Direct pin-compatible replacements within the same family include other LTC2636 variants with different resolutions or reset behaviors, such as LTC2636IMS-LMI10#PBF (mid-scale reset) or LTC2636IMS-LZ12#PBF (12-bit resolution). Verify that the alternative part's power-on reset state and full-scale voltage meet system requirements.