LTC2637HDE-LMI12#TRPBF

Overview

The LTC2637HDE-LMI12#TRPBF is an octal 12-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference providing a 4.096V full-scale output with a temperature coefficient of 10ppm/°C. The device operates on a single 4.5V to 5.5V supply and utilizes a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Packaged in a 14-lead 4mm × 3mm DFN, it includes rail-to-rail output buffers guaranteed monotonic over the –40°C to 125°C automotive temperature range. Key electrical parameters include a maximum integral nonlinearity (INL) error of ±2.5LSB, settling time of 5µs at ±1LSB, and ultralow DAC-to-DAC crosstalk below 3nV•s.

Feature Summary

• Octal 12-bit resolution with integrated 4.096V precision reference (10ppm/°C)
• Automotive grade operation from –40°C to 125°C
• Rail-to-rail output buffers with guaranteed monotonicity
• Ultralow crosstalk between DAC channels (<3nV•s)

Applications

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

Procurement Notes

Verify the specific suffix #TRPBF indicates a tape and reel packaging configuration containing 2500 pieces. Confirm the H-grade designation aligns with the required –40°C to 125°C operating temperature range for the target application environment.

Selection Notes

Select this part when eight independent 12-bit voltage outputs are required within a compact footprint. The H-grade variant is necessary for high-temperature automotive or industrial environments. Ensure the system supply voltage remains within the 4.5V to 5.5V range specified for the internal 4.096V reference mode.

Part Context

This component belongs to the LTC2637 family, which offers 8-, 10-, and 12-bit resolutions. The 'H' suffix denotes the automotive temperature grade, while 'DE' specifies the 14-lead DFN package. The 'LMI12' code indicates 12-bit resolution with a power-on reset to mid-scale in internal reference mode.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.