LTC2637IDE-HMI10#TRPBF

Overview

The LTC2637IDE-HMI10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a rail-to-rail output buffer and 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 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 guaranteed monotonicity over the operating temperature range
• Integrated 4.096V full-scale reference with ±10ppm/°C temperature coefficient
• Rail-to-rail buffered outputs with ultralow DAC-to-DAC crosstalk (<3nV•s)
• Power-on reset function set to mid-scale for internal reference operation

Applications

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

Procurement Notes

Verify that the ordering suffix #TRPBF confirms the tape and reel packaging format containing 2500 units per reel. Confirm the 'I' grade designation corresponds to the industrial temperature range of –40°C to 85°C. Ensure the 'H' suffix indicates the 4.096V full-scale specification requiring a 4.5V to 5.5V supply voltage. Validate the 'MI' code specifies the mid-scale power-on reset behavior.

Selection Notes

Select this part when eight independent analog channels are required within a compact footprint. The 10-bit resolution balances cost and performance for applications not requiring 12-bit precision. The H-grade variant is necessary if the system requires a 4.096V output span; otherwise, the L-grade provides a 2.5V span with a lower minimum supply voltage of 2.7V. Verify I2C bus compatibility and address pin configurations using CA0, CA1, and CA2 pins.

Part Context

This component belongs to the LTC2637 family of octal DACs, which also includes 8-bit and 12-bit variants. The specific model utilizes the 16-lead MSOP package, distinct from the 14-lead DFN option. It shares core architectural features such as the I2C interface and low-drift reference technology across the entire product line, differing primarily in resolution, package type, and power-on reset configuration.

Replacement Considerations

Direct substitutes within the same family include the LTC2637IMS-LMI10#TRPBF for a 2.5V full-scale output or the LTC2637IMS-HMX10#TRPBF for external reference operation. Cross-package replacements like the LTC2637IDE-HMI10#PBF offer tube packaging instead of tape and reel.