LTC2636IMS-LMI10#TRPBF

Overview

The LTC2636IMS-LMI10#TRPBF is an octal 10-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 supply voltage ranging from 2.7V to 5.5V and includes rail-to-rail output buffers that are guaranteed monotonic over the industrial temperature range of –40°C to 85°C. Communication is handled via a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. This specific part number indicates a 16-lead MSOP package, mid-scale power-on reset in internal reference mode, and tape-and-reel packaging.

Feature Summary

• Octal architecture with eight independent 10-bit DAC channels
• Integrated 10ppm/°C precision reference for 2.5V full-scale output
• Rail-to-rail output buffers with guaranteed monotonicity
• 3-wire SPI/MICROWIRE serial interface with 50MHz clock rate

Applications

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

Procurement Notes

Verify the #TRPBF suffix confirms the 2500-unit tape and reel packaging format. Ensure the IMS designation matches the required 16-lead MSOP package for PCB layout compatibility. Confirm the LMI10 code specifies the correct 10-bit resolution and mid-scale power-on reset behavior for the target application.

Selection Notes

Select this component when eight synchronized analog outputs are required with high accuracy. The 10-bit resolution offers a balance between cost and performance compared to 12-bit variants. Choose the LMI variant if a mid-scale power-on state is preferred over zero-scale. Verify that the 2.5V internal reference meets the system's voltage swing requirements without external buffering.

Part Context

This part belongs to the LTC2636 family, which also includes 8-bit and 12-bit resolutions, as well as H-grade versions with 4.096V references. The IMS prefix denotes the MSOP package, while DE would indicate the DFN package. The LMI suffix specifically configures the power-on reset to mid-scale in internal reference mode, distinguishing it from LZ (zero-scale) or LMX (mid-scale external reference) variants.

Replacement Considerations

Direct pin-compatible replacements within the same package include other LTC2636 variants such as LTC2636IMS-LZ10#TRPBF or LTC2636IMS-HMI10#TRPBF, provided the power-on reset behavior and reference voltage specifications align with the design requirements.