LTC2634IMSE-HMX10#TRPBF

Overview

The LTC2634IMSE-HMX10#TRPBF is a quad 10-bit voltage output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 4.096V and operates on a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the -40°C to 85°C temperature range, and double-buffered data latches. Communication is handled via a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. This specific variant utilizes a 10-lead MSOP package and resets to mid-scale in external reference mode upon power-up.

Feature Summary

• Quad 10-bit resolution with integrated 4.096V precision reference
• Rail-to-rail output buffers with ultralow crosstalk (2.4nV•s)
• 3-wire serial interface operating at clock rates up to 50MHz
• Double-buffered data latches for simultaneous updates

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment

Procurement Notes

Verify the ordering suffix #TRPBF indicates lead-free construction and tape-and-reel packaging. Confirm the H suffix corresponds to the 4.5V to 5.5V supply range and 4.096V full-scale output. Ensure the IMSE designation matches the required 10-lead MSOP package and industrial temperature grade (-40°C to 85°C). Cross-reference the MX10 code to confirm mid-scale reset behavior in external reference mode.

Selection Notes

Select this part when four independent 10-bit DAC channels are required in a compact surface-mount package. The 4.096V internal reference simplifies design by eliminating external reference components. Choose the H-grade version if the system supply voltage is strictly between 4.5V and 5.5V. Verify that the 50MHz serial clock speed meets the system's data throughput requirements.

Part Context

This component belongs to the LTC2634 family, which offers 12-, 10-, and 8-bit resolutions in both 16-lead QFN and 10-lead MSOP packages. The IMSE suffix specifically denotes the MSOP package form factor. The H variant distinguishes itself from the L variant by its higher supply voltage requirement and larger full-scale output voltage derived from the internal reference.

Replacement Considerations

Direct pin-compatible replacements within the same package include other LTC2634 variants such as LTC2634IMSE-HMI10 or LTC2634IMSE-HZ10, provided the power-on reset behavior (mid-scale vs zero-scale) and reference mode (internal vs external) align with the application design.