LTC2634IUD-HMI12#TR

Overview

The LTC2634IUD-HMI12#TR is a quad 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features rail-to-rail output buffers and an integrated precision reference with a full-scale output of 4.096V. The device operates on a single supply ranging from 4.5V to 5.5V and communicates via a high-speed SPI-compatible serial interface. Key electrical specifications include a settling time of 4.2µs, integral nonlinearity (INL) of ±0.2 LSB, and differential nonlinearity (DNL) of ±0.5 LSB. It is housed in a 16-lead QFN package.

Feature Summary

• Quad 12-bit resolution with integrated 4.096V precision reference
• Rail-to-rail buffered voltage outputs
• High-speed SPI compatible serial interface
• Low power consumption: 700µA operating current

Applications

• Portable instrumentation
• Battery-powered systems
• Industrial process control

Procurement Notes

Verify the suffix #TR indicates tape and reel packaging. Confirm the IUD package code corresponds to the specific 16-lead QFN variant. Ensure the HMI12 designation matches the required internal reference and reset functionality for the design.

Selection Notes

Select this part for applications requiring four independent 12-bit channels with low power consumption. Verify that the 4.096V full-scale range fits the system requirements. Check if the SPI interface speed and power-on reset behavior align with the system startup sequence.

Part Context

This component belongs to the LTC2634 family of quad DACs. Variants differ by resolution (8/10/12-bit), package type, and reference configuration. The HMI12 suffix specifies the 12-bit resolution with internal reference and mid-scale reset options.

Replacement Considerations

Compatible substitutes within the same family include LTC2634CUD-HMI12#TRPBF and LTC2634HUD-HMI12#TRPBF. Verify pinout compatibility and electrical parameter alignment before substitution.