LTC2637CMS-HMI10#TRPBF

Overview

The LTC2637CMS-HMI10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a rail-to-rail output buffer and a precision internal reference with a temperature coefficient of 10ppm/°C, providing a full-scale output of 2.5V. The device operates on a single 2.7V to 5.5V supply and communicates via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It incorporates double-buffered data latches and a power-on reset circuit configured to initialize outputs to mid-scale in internal reference mode.

Feature Summary

• Octal architecture with 10-bit resolution per channel
• Integrated 2.5V full-scale reference with ±10ppm/°C drift
• Rail-to-rail output buffers guaranteed monotonic over –40°C to 125°C
• Ultralow DAC-to-DAC crosstalk (<3nV•s)
• Power-on reset to mid-scale in internal reference mode

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the 'MS' package designation corresponds to the 16-lead MSOP form factor. Ensure the 'I' grade matches the required –40°C to 85°C operating temperature range for the application environment.

Selection Notes

Select this part when eight independent 10-bit voltage outputs are required within a compact footprint. The internal 2.5V reference suits applications where a 2.7V to 5.5V supply is available and external references are undesirable. Choose the H-grade variant if operation up to 125°C is necessary, or the L-series if lower supply voltages down to 2.7V are critical.

Part Context

This component belongs to the LTC2637 family, which includes 8-bit, 10-bit, and 12-bit variants. The CMS designation identifies the Industrial temperature grade (–40°C to 85°C) and MSOP package. The HMI10 suffix specifies the 10-bit resolution and mid-scale power-on reset behavior. Other family members include DFN packages and different reset configurations.

Replacement Considerations

Direct substitutes within the same family include LTC2637IMS-HMI10#TRPBF for identical electrical performance in the same package, or LTC2637CMS-LMI10#TRPBF if a 2.5V full-scale output is acceptable with a wider supply range. Verify pin compatibility and reset behavior when cross-referencing other resolutions like the 8-bit or 12-bit versions.