LTC2635CMSE-LMX10#TRPBF

Overview

The LTC2635CMSE-LMX10#TRPBF is a quad 10-bit voltage-output digital-to-analog converter (DAC) in a 10-lead MSOP package. It features an integrated precision reference with a full-scale output of 2.5V and a temperature coefficient of 10ppm/°C. The device operates from a single 2.7V to 5.5V supply and includes rail-to-rail output buffers guaranteed monotonic over the –40°C to 125°C range. Communication occurs via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Power-on reset defaults to mid-scale in external reference mode.

Feature Summary

• Quad 10-bit resolution with ±1 LSB maximum INL error
• Integrated 2.5V precision reference (10ppm/°C drift)
• Rail-to-rail output buffers with ultralow crosstalk (3nV•s)
• Power-on reset to mid-scale in external reference mode

Applications

• Mobile communications
• Process control and industrial automation
• Power supply margining
• Portable equipment
• Automotive systems

Procurement Notes

Verify the specific suffix LMX indicates power-on reset to mid-scale in external reference mode. Confirm the MSE package designation corresponds to the 10-lead MSOP form factor. Ensure the C grade meets commercial temperature requirements if automotive conditions are not needed. Check for RoHS compliance markings on the component body.

Selection Notes

Select this part when four independent 10-bit DAC channels are required in a compact surface-mount package. The LMX suffix is critical for designs requiring a known mid-scale state upon power-up when using an external reference. The 2.7V minimum supply voltage allows operation in low-voltage battery-powered applications compared to the H-grade variant.

Part Context

This component belongs to the LTC2635 family, which offers 8-, 10-, and 12-bit resolutions. The CMSE prefix denotes the Commercial temperature grade (0°C to 70°C) and the 10-lead MSOP package. Other variants include the H-grade for automotive temperatures and the UD package for QFN housing. The family shares identical electrical characteristics and pinouts across resolutions.

Replacement Considerations

Direct substitutes within the same family include LTC2635CMSE-LMI10#TRPBF (internal reference reset) or LTC2635CMSE-LZ10#TRPBF (zero-scale reset). For different resolutions, consider LTC2635CMSE-LMX12#TRPBF (12-bit) or LTC2635CMSE-LMX8#TRPBF (8-bit). Cross-package replacements require PCB redesign due to pinout differences between MSOP and QFN.