LTC2634HUD-HMX12#TRPBF

Digital To Analog Converters Overview

The LTC2634HUD-HMX12#TRPBF is a quad 12-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 from a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers, guaranteed monotonicity over the -40°C to 125°C temperature range, and communicates via a 50MHz SPI-compatible interface. Key electrical specifications include a maximum integral nonlinearity error of ±2.5 LSB, a settling time of 4.8µs at 5V, and a typical supply current of 0.7mA. The H suffix denotes the automotive temperature grade, while MX indicates a power-on reset to mid-scale in external reference mode.

Digital To Analog Converters Feature Summary

• Quad 12-bit resolution with integrated 4.096V precision reference
• Rail-to-rail output buffers with guaranteed monotonicity (-40°C to 125°C)
• 50MHz SPI/MICROWIRE compatible serial interface
• Power-on reset to mid-scale in external reference mode

Digital To Analog Converters Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment
• Automotive

Digital To Analog Converters Procurement Notes

Verify that the specific part number corresponds to the Automotive Temperature Grade (H) and the Tape and Reel packaging configuration (TR). Confirm the power-on reset behavior matches the MX designation for mid-scale initialization in external reference mode before integration into the design.

Digital To Analog Converters Selection Notes

Select this component when four independent 12-bit DAC channels are required with high accuracy and wide operating temperature ranges. Ensure the system supply voltage supports the 4.5V to 5.5V requirement for the H-grade variant. Consider the MX suffix if mid-scale initialization upon power-up is necessary for downstream circuit safety.

Digital To Analog Converters Part Context

This part belongs to the LTC2634 family of quad DACs, which also offers 10-bit and 8-bit resolutions. Variants within the family differ by full-scale voltage (L for 2.5V, H for 4.096V), temperature grade (C, I, H), and package type (QFN or MSOP). The HUD suffix specifically identifies the 16-lead QFN package with automotive temperature rating.

Digital To Analog Converters Replacement Considerations

Direct replacements within the same family include LTC2634IUD-HMX12#TRPBF for industrial temperature range or LTC2634CUD-HMX12#TRPBF for commercial range. For different resolutions, consider LTC2634HUD-HMX10#TRPBF (10-bit) or LTC2634HUD-HMX8#TRPBF (8-bit).