LTC2637CMS-LMI10#TRPBF

Overview

The LTC2637CMS-LMI10#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 an integrated precision 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 reset to mid-scale in internal reference mode.

Feature Summary

• Octal 10-bit resolution with guaranteed monotonicity over the operating temperature range
• Integrated 2.5V full-scale reference with ±10ppm/°C temperature coefficient
• Rail-to-rail output buffers with 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 that the ordering suffix #TRPBF corresponds to the tape and reel packaging configuration containing 2500 pieces. Confirm the package type matches the 16-lead MSOP specification for this specific part number variant. Ensure the component meets RoHS compliance requirements as indicated by the manufacturer's lead-free designation.

Selection Notes

Select this model when an octal DAC architecture with 10-bit resolution is required. The internal 2.5V reference makes it suitable for applications where a 2.7V to 5.5V supply is available. Choose this variant over the H-grade if the system does not require the 4.096V full-scale output or the higher automotive temperature grade capabilities.

Part Context

This component belongs to the LTC2637 family, which includes 8-bit, 10-bit, and 12-bit variants. The 'L' designation indicates the 2.5V full-scale internal reference version, while 'H' denotes the 4.096V version. The 'MS' suffix specifies the 16-lead MSOP package, distinguishing it from the 14-lead DFN option.

Replacement Considerations

Direct parameter-equivalent substitutes within the same family include the LTC2637IMS-LMI10#TRPBF, which shares identical electrical specifications but utilizes the Industrial temperature grade (-40°C to 85°C) instead of the Commercial grade (0°C to 70°C). Other resolutions such as the 8-bit or 12-bit versions may serve as functional replacements if bit-depth adjustments are acceptable.