LTC2637CDE-HMI12#TRPBF

Overview

The LTC2637CDE-HMI12#TRPBF is an octal 12-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 utilizes a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±2.5 LSB, a settling time of 5µs at ±1LSB, and ultralow DAC-to-DAC crosstalk below 3nV•s. The component is housed in a 14-lead DFN package and includes double-buffered data latches.

Feature Summary

• Octal 12-bit resolution with rail-to-rail buffered outputs
• Integrated 4.096V precision reference with 10ppm/°C drift
• Ultralow crosstalk between channels (<3nV•s)
• I2C interface with selectable power-on reset to mid-scale

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 commercial operating temperature range of 0°C to 70°C for the design environment. Ensure the H-subcode aligns with the necessary 4.5V to 5.5V supply voltage requirements.

Selection Notes

Select this part when eight independent 12-bit voltage outputs are required within a compact footprint. The H-grade variant is mandatory for applications requiring a 4.096V full-scale range, as it supports the higher 4.5V minimum supply voltage. The MI power-on reset option ensures outputs initialize to mid-scale, which may be preferred over zero-scale depending on system safety or initialization protocols.

Part Context

This component belongs to the LTC2637 family, which also offers 8-bit and 10-bit resolutions, as well as L-grade variants with a 2.5V full-scale output. The DE package designation identifies the 14-lead 4mm × 3mm DFN form factor. Other family members include MSOP packages and different temperature grades such as I-grade (-40°C to 85°C) and H-grade (-40°C to 125°C).

Replacement Considerations

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