LTC2634CMSE-HMX10#PBF

Overview

The LTC2634CMSE-HMX10#PBF is a quad 10-bit voltage output digital-to-analog converter (DAC) housed in a 10-lead MSOP package. It features an integrated precision reference providing a full-scale output of 4.096V, requiring a supply voltage between 4.5V and 5.5V. The device includes rail-to-rail output buffers and guarantees monotonicity over the operating temperature range. Communication is handled 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 resolution with integrated 4.096V precision reference
• Rail-to-rail output buffers with guaranteed monotonicity
• 3-wire SPI/MICROWIRE serial interface supporting up to 50MHz clock
• 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 Analog Devices documentation to confirm package type, temperature grade, and power-on reset behavior. Ensure compatibility with system voltage requirements, as this H-grade variant requires a minimum 4.5V supply for specified performance.

Selection Notes

Select this component when a quad DAC configuration with high accuracy and low drift is required in a compact MSOP footprint. The H-grade designation indicates operation from 4.5V to 5.5V with a 4.096V full-scale output. Verify that the system can accommodate the mid-scale power-on reset state if using external reference mode.

Part Context

This part belongs to the LTC2634 family of quad DACs available in 8-, 10-, and 12-bit resolutions. The CMSE suffix denotes the Commercial temperature grade (0°C to 70°C) and the 10-lead MSOP package. The HMX10 suffix specifies the 10-bit resolution, 4.096V internal reference, and mid-scale reset in external reference mode.

Replacement Considerations

Direct replacements within the same family include other LTC2634 variants differing only in resolution (LTC2634-LMI10, LTC2634-HZ10), package (QFN vs MSOP), or temperature grade. Cross-family substitutes require verification of pinout compatibility and electrical parameter alignment.