LTC2637CDE-LMI10#TRPBF

Overview

The LTC2637CDE-LMI10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features 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 supply voltage ranging from 2.7V to 5.5V and utilizes a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Packaged in a 14-lead 4mm × 3mm DFN, it includes rail-to-rail output buffers guaranteed monotonic over the commercial temperature range of 0°C to 70°C.

Feature Summary

• Octal architecture with 10-bit resolution and integrated 10ppm/°C reference
• Rail-to-rail output buffers with ultralow crosstalk (<3nV•s)
• I2C-compatible serial interface with selectable internal or external reference
• Power-on reset configured for mid-scale output in internal reference mode

Applications

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

Procurement Notes

Verify the C-grade commercial temperature rating (0°C to 70°C) against application requirements. Confirm the L-series 2.5V full-scale specification matches system voltage constraints. Ensure the 14-lead DFN package footprint aligns with PCB layout capabilities. Validate that the tape and reel quantity meets production needs.

Selection Notes

Select this part for applications requiring multiple low-power DAC channels with precise internal referencing. The C-grade variant is suitable for commercial environments where extreme temperature ranges are not required. Compare settling times and linearity specifications against other resolutions if higher accuracy is needed.

Part Context

This component belongs to the LTC2637 family, which offers 8-, 10-, and 12-bit resolutions in both DFN and MSOP packages. The 'L' suffix indicates the 2.5V full-scale version powered by a 2.7V–5.5V supply, while 'H' denotes the 4.096V version requiring 4.5V–5.5V. The 'C' grade specifies the commercial temperature operating range.

Replacement Considerations

Direct substitutes within the same family include LTC2637CDE-LZ10#TRPBF (zero-scale reset) or LTC2637CDE-HMI10#TRPBF (4.096V full-scale). Cross-package equivalents like the MSOP variant require pinout verification.