LTC2637CDE-HMI10#TRPBF

Overview

The LTC2637CDE-HMI10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features an integrated precision reference with a temperature coefficient of 10ppm/°C, providing a full-scale output of 4.096V. The device operates on a single 4.5V to 5.5V supply and communicates via a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It includes rail-to-rail output buffers guaranteed monotonic over the commercial temperature range of 0°C to 70°C. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB, a settling time of 4.3µs at ±1 LSB, and ultralow DAC-to-DAC crosstalk below 3nV•s.

Feature Summary

• Octal architecture with 8 independent 10-bit voltage outputs
• Integrated 10ppm/°C precision reference for 4.096V full-scale output
• I2C-compatible serial interface with selectable slave addresses via CA0-CA2 pins
• Power-on reset configured to mid-scale in internal reference mode

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics
• Optical networking devices

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging containing 2500 pieces. Confirm the C-grade designation matches the required 0°C to 70°C operating temperature range for the application environment. Ensure the H-subcode aligns with the 4.5V to 5.5V supply requirement for the 4.096V full-scale configuration.

Selection Notes

Select this part when eight channels of 10-bit resolution are required within a compact 14-lead DFN package. The H-grade variant is necessary for applications demanding a 4.096V output span, whereas the L-grade provides 2.5V. The MI power-on reset option ensures outputs initialize to mid-scale, which may be preferred over zero-scale for specific biasing requirements in signal conditioning circuits.

Part Context

This component belongs to the LTC2637 family, which offers 12-, 10-, and 8-bit resolutions in both DFN and MSOP packages. The CDE suffix denotes the commercial temperature grade and 14-lead DFN footprint. Other variants in the series include the I-grade for industrial temperatures (-40°C to 85°C) and the H-grade for automotive/high-reliability applications (-40°C to 125°C).

Replacement Considerations

Direct pin-compatible replacements within the same family include the LTC2637IDE-HMI10#TRPBF for industrial temperature operation or the LTC2637CDE-LMI10#TRPBF if a lower 2.5V full-scale output is acceptable. Verify that any substitute maintains the required I2C addressability and power-on reset behavior.