LTC2637HDE-HMI10#TRPBF

Overview

The LTC2637HDE-HMI10#TRPBF is an octal, 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a 4.096V full-scale output and operates on a single 4.5V to 5.5V supply. The device includes rail-to-rail output buffers and guarantees monotonicity over the –40°C to 125°C temperature range. Communication occurs via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It incorporates double-buffered data latches and a power-on reset circuit configured to initialize outputs to mid-scale in internal reference mode.

Feature Summary

• Octal architecture with 10-bit resolution and 4.096V full-scale output
• Integrated 10ppm/°C precision reference with rail-to-rail buffered outputs
• I2C-compatible serial interface with selectable slave addresses
• Power-on reset to mid-scale and double-buffered data latches

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems
• Optical networking

Procurement Notes

Verify the specific ordering suffixes against official documentation to confirm package type, temperature grade, and reset configuration. Ensure the supply voltage range matches the H-grade requirement of 4.5V to 5.5V. Confirm that the I2C address pins are correctly terminated for the intended bus topology.

Selection Notes

Select this component when eight independent voltage outputs are required within a compact footprint. The H-grade variant is necessary for applications requiring a 4.096V full-scale range and operation up to 125°C. Verify that the system logic levels are compatible with the specified I2C input thresholds.

Part Context

This part belongs to the LTC2637 family of octal DACs available in 12-, 10-, and 8-bit resolutions. The 'H' designation indicates automotive temperature grading (-40°C to 125°C) and a 4.096V internal reference. The 'DE' suffix specifies the 14-lead DFN package, while 'M' variants utilize a 16-lead MSOP package.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source material.