LTC2655BCUF-H16#TRPBF

Overview

The LTC2655BCUF-H16#TRPBF is a quad, 16-bit rail-to-rail digital-to-analog converter (DAC) from Analog Devices Inc. It features an integrated precision reference with a maximum temperature coefficient of 10ppm/°C and a full-scale output voltage of 4.096V. The device operates on a single supply voltage ranging from 4.5V to 5.5V. Each channel includes high-performance, rail-to-rail output buffers that are guaranteed monotonic over the operating temperature range. Communication is handled via a 2-wire I²C compatible serial interface supporting standard mode (100kHz) and fast mode (400kHz). The component is housed in a 20-lead 4mm × 4mm plastic QFN package.

Feature Summary

• Quad 16-bit resolution with ±4LSB maximum Integral Nonlinearity (INL)
• Integrated 4.096V full-scale reference with 10ppm/°C max temperature coefficient
• Rail-to-rail output buffers guaranteed monotonic over temperature
• I²C interface with selectable power-on reset to zero-scale or mid-scale

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Instrumentation
• Automatic Test Equipment
• Automotive Systems

Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging when sourcing this component. Ensure the supplier documentation matches the Analog Devices Inc. manufacturer identification for the LTC2655 family. Confirm the electrical grade 'B' corresponds to the required ±4LSB INL specification for the application design.

Selection Notes

Select the -H suffix variant specifically for applications requiring a 4.096V full-scale output, as it mandates a 4.5V to 5.5V supply range. Choose the -L variant if a 2.5V full-scale output is sufficient and lower supply voltages down to 2.7V are preferred. Verify that the 20-lead QFN package dimensions fit the PCB layout constraints compared to the 16-lead SSOP alternative.

Part Context

This part belongs to the LTC2655 family of quad DACs, which also offers 12-bit resolution options and commercial/industrial temperature grades. The 'B' designation indicates a tighter linearity specification compared to standard grades. The UF package code identifies the 20-lead 4mm × 4mm QFN form factor, distinguishing it from the GN SSOP package option within the same functional family.

Replacement Considerations

Direct pin-compatible substitutes within the same package include other LTC2655 variants such as the LTC2655BIUF-H16#TRPBF for industrial temperature ranges or LTC2655CUF-H16#TRPBF for 12-bit resolution. Cross-family replacements like the LTC2609 series offer similar functionality but may require interface or performance verification.