LTC2634CMSE-LZ12#TRPBF

Overview

The LTC2634CMSE-LZ12#TRPBF is a quad 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in a 10-lead MSOP package. It features an integrated precision reference providing a 2.5V full-scale output and operates on a single 2.7V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the -40°C to 125°C range, and communicates via a 3-wire SPI/MICROWIRE interface with clock rates up to 50MHz. Power-on reset defaults to zero-scale.

Feature Summary

• Quad 12-bit resolution with integrated 10ppm/°C precision reference
• Rail-to-rail output buffers with ultralow crosstalk (2.4nV•s)
• SPI/MICROWIRE compatible 3-wire serial interface
• Power-on reset to zero-scale for consistent initialization

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2,500 pieces. Confirm the MSE package designation corresponds to the 10-lead MSOP form factor required for the target PCB layout. Ensure the C temperature grade meets the operational requirements of the intended environment.

Selection Notes

Select this part when a quad DAC configuration is required within a compact 10-lead MSOP footprint. The LZ suffix ensures outputs initialize to zero upon power-up, which is critical for systems sensitive to initial voltage states. Verify that the 2.5V internal full-scale range aligns with downstream circuit input requirements.

Part Context

This component belongs to the LTC2634 family, which offers variations in resolution (8, 10, or 12 bits), package type (QFN or MSOP), and power-on reset behavior. The CMSE variant specifically denotes the commercial temperature grade, MSOP package, and zero-scale reset configuration.

Replacement Considerations

Direct replacements include other LTC2634 variants such as LTC2634IMSE-LZ12#PBF for industrial temperature ranges or LTC2634CUD-LZ12#PBF for QFN packaging. Cross-model alternatives like the LTC2635 offer I2C interfaces instead of SPI.