LTC2637IDE-LZ10#TRPBF

Overview

The LTC2637IDE-LZ10#TRPBF is an octal 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a 10ppm/°C drift rate, providing a full-scale output of 2.5V. The device operates on a single supply ranging from 2.7V to 5.5V and utilizes 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 zero-scale in internal reference mode. Packaged in a 16-lead MSOP, it ensures monotonicity over the industrial temperature range of –40°C to 85°C.

Feature Summary

• Octal architecture with 10-bit resolution and rail-to-rail buffered outputs
• Integrated 2.5V precision reference with ±10ppm/°C temperature coefficient
• Power-on reset defaults to zero-scale for internal reference operation
• Ultralow DAC-to-DAC crosstalk (<3nV•s) and guaranteed monotonicity

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 units. Confirm the 'I' grade designation matches the required –40°C to 85°C operating temperature range for the application environment. Ensure the 'L' suffix corresponds to the 2.5V full-scale output specification derived from the internal reference.

Selection Notes

Select this component when multiple isolated voltage channels are required within a compact footprint. The 16-lead MSOP package accommodates eight independent outputs. Verify that the system supply voltage falls within the 2.7V to 5.5V range compatible with the LTC2637-L series. Consider the external reference capability if a different full-scale voltage than 2.5V is necessary.

Part Context

This part belongs to the LTC2637 family, which includes 12-, 10-, and 8-bit variants. The 'IDE' prefix denotes the Industrial temperature grade (-40°C to 85°C) and the 16-lead MSOP package. The 'LZ10' segment specifies the 2.5V full-scale output, zero-scale power-on reset behavior, and 10-bit resolution respectively.

Replacement Considerations

Direct substitutes within the same family include LTC2637IDE-LZ12#TRPBF for higher resolution or LTC2637IDE-LZ8#TRPBF for lower resolution. For different reset behaviors, consider LTC2637IDE-LMI10#TRPBF (mid-scale reset). Package variations such as the 14-lead DFN (LTC2637IDE...) require schematic retargeting.