LTC2635CMSE-LZ12#TRPBF

Overview

The LTC2635CMSE-LZ12#TRPBF is a quad 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc., housed 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 on a single supply ranging from 2.7V to 5.5V and communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity error of ±2.5 LSB, rail-to-rail output buffers, and guaranteed monotonicity over the commercial temperature range of 0°C to 70°C.

Feature Summary

• Quad 12-bit resolution with integrated 2.5V precision reference (10ppm/°C drift)
• I²C-compatible serial interface with selectable slave addresses via CA0-CA2 pins
• Rail-to-rail output buffers with ultralow crosstalk (3nV•s typical)
• Power-on reset options including zero-scale, mid-scale, or high-impedance states

Applications

• Mobile communications systems
• Process control and industrial automation
• Portable equipment requiring low power consumption
• Power supply margining applications

Procurement Notes

Verify that the component matches the specific 10-lead MSOP package configuration and the commercial temperature grade (0°C to 70°C). Confirm the internal reference setting corresponds to the 2.5V full-scale output characteristic defined for the 'L' suffix variant. Ensure the ordering suffix '#TRPBF' indicates the tape and reel packaging format containing 2,500 pieces per reel as specified in the manufacturer's documentation.

Selection Notes

Select this part when a quad-channel DAC with I²C control and integrated reference is required in a compact surface-mount package. The 2.5V full-scale output is suitable for single-supply systems operating between 2.7V and 5.5V. Consider the ±2.5 LSB INL specification for applications requiring moderate linearity accuracy. Verify that the commercial temperature range meets the operational environment requirements, as automotive-grade variants are available in the same family.

Part Context

This component belongs to the LTC2635 family of quad DACs, which also includes 10-bit and 8-bit resolutions. Variants within the family differ by full-scale voltage (2.5V for 'L', 4.096V for 'H') and temperature grade (Commercial 'C' vs. Automotive 'H'). The CMSE designation specifically identifies the Commercial grade device in the 10-lead MSOP package, distinguishing it from the QFN package options.

Replacement Considerations

Direct replacements within the same family include LTC2635CMSE-LZ10#TRPBF (10-bit) and LTC2635CMSE-LZ8#TRPBF (8-bit), provided the resolution difference is acceptable. For higher voltage ranges, the LTC2635CMSE-HZ12#TRPBF offers a 4.096V full-scale output but requires a 4.5V minimum supply voltage.