LTC2634CMSE-LMX10#PBF

Overview

The LTC2634CMSE-LMX10#PBF is a quad 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in a 10-lead MSOP package. It features an integrated precision reference with a full-scale output of 2.5V and operates on a single 2.7V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the commercial temperature range of 0°C to 70°C, and communicates via a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. Power-on reset defaults to mid-scale in external reference mode.

Feature Summary

• Quad 10-bit DACs with integrated 10ppm/°C precision reference
• Rail-to-rail output buffers with 2.5V full-scale range
• SPI/MICROWIRE compatible 3-wire serial interface
• Power-on reset to mid-scale in external reference mode

Applications

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

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and temperature grade. Ensure compatibility with system power supply constraints, as this L-grade variant requires a minimum of 2.7V. Confirm that the MSOP package footprint matches the design layout requirements for the exposed ground pad.

Selection Notes

Select this part when four independent 10-bit outputs are required in a compact surface-mount package. The L-series designation indicates a 2.5V internal reference, suitable for lower voltage applications compared to the H-series. Verify that the commercial temperature range (0°C to 70°C) meets the environmental specifications of the target application.

Part Context

This component belongs to the LTC2634 family, which offers 8-, 10-, and 12-bit resolutions in both QFN and MSOP packages. The CMSE suffix denotes the Commercial temperature grade and MSOP package. Other variants include the I-grade for industrial temperatures and the H-grade for automotive applications, providing flexibility for different thermal and reliability requirements.

Replacement Considerations

Direct pin-compatible replacements within the same family include other resolution variants like the LTC2634CMSE-LMX12#PBF or LTC2634CMSE-LMX8#PBF. For higher temperature ranges, consider the I-grade LTC2634IMSE-LMX10#PBF. Cross-family alternatives such as the LTC2635 series offer I2C interfaces instead of SPI.