LTC2637HDE-HMX8#PBF

Digital To Analog Converters Overview

The LTC2637HDE-HMX8#PBF is an octal 8-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 a temperature coefficient of 10ppm/°C. The device operates on a single supply voltage ranging from 4.5V to 5.5V and communicates via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It incorporates double-buffered data latches, rail-to-rail output buffers, and a power-on reset circuit configured to reset to mid-scale in external reference mode.

Digital To Analog Converters Feature Summary

• Octal architecture with 8 independent 8-bit DAC channels
• Integrated 4.096V precision reference with ±10ppm/°C drift
• I2C serial interface with selectable slave addresses via CA0-CA2 pins
• Power-on reset to mid-scale for external reference configurations

Digital To Analog Converters Applications

• Process control and industrial automation systems
• Automatic test equipment requiring multi-channel signal generation
• Portable battery-powered instrumentation
• Automotive electronic control units

Digital To Analog Converters Procurement Notes

Verify the specific suffix HDE against official documentation to confirm package type and lead finish. Ensure the external reference configuration matches the MX power-on reset behavior. Confirm availability through authorized distributors as stock levels vary by region.

Digital To Analog Converters Selection Notes

Select this part when eight low-cost, low-resolution channels are required with high integration. The H-grade ensures operation up to 125°C. Verify that the 4.096V internal reference range suits the application or if an external reference is preferred for different full-scale voltages.

Digital To Analog Converters Part Context

This component belongs to the LTC2637 family, which includes 12-bit, 10-bit, and 8-bit variants. The 'H' designation indicates automotive-grade temperature performance (-40°C to 125°C), while 'DE' specifies the 14-lead DFN package. The 'MX' suffix defines the power-on reset behavior for external reference modes.

Digital To Analog Converters Replacement Considerations

LTC2637IDE-HMX8#PBF offers identical electrical specifications but in the Industrial temperature grade (-40°C to 85°C). Other family members like LTC2637HMI8 provide different reset behaviors.