LTC2637IDE-LZ8#PBF

Digital To Analog Converters Overview

The LTC2637IDE-LZ8#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 2.5V and a temperature coefficient of 10ppm/°C. The device operates on a single supply ranging from 2.7V to 5.5V and communicates via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It includes rail-to-rail output buffers, double-buffered data latches, and a power-on reset circuit configured to reset outputs to zero-scale upon initialization.

Digital To Analog Converters Feature Summary

• Octal architecture with 8 independent 8-bit DAC channels
• Integrated 2.5V precision reference with 10ppm/°C drift
• Rail-to-rail output buffers guaranteed monotonic over –40°C to 85°C
• Ultralow crosstalk between DACs (<3nV•s)
• Power-on reset to zero-scale in internal reference mode

Digital To Analog Converters Applications

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

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix LZ8 corresponds to the Industrial temperature grade (-40°C to 85°C), 8-bit resolution, Zero-scale power-on reset, and DFN package configuration as defined in the manufacturer's selection guide. Confirm that the #PBF designation indicates lead-free compliance before procurement.

Digital To Analog Converters Selection Notes

Select this component when eight low-channel-count DACs are required within a compact footprint. The 2.7V to 5.5V supply range accommodates various system voltages. Ensure the application requires zero-scale initialization on power-up; otherwise, consider MI or MX suffixes for mid-scale reset options.

Digital To Analog Converters Part Context

This part belongs to the LTC2637 family, which offers 12-, 10-, and 8-bit resolutions in both 14-lead DFN and 16-lead MSOP packages. The 'I' suffix denotes the Industrial temperature grade, while 'L' specifies the 2.5V full-scale internal reference variant. The 'Z' suffix specifically configures the power-on reset behavior to zero-scale.

Digital To Analog Converters Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include LTC2637IDE-HZ8#PBF (4.096V full-scale) and LTC2637CMS-LZ8#PBF (Commercial temperature grade). Verify supply voltage compatibility when substituting H-grade parts.