LTC2654BCUF-H16#TRPBF

Overview

The LTC2654BCUF-H16#TRPBF is a quad, 16-bit rail-to-rail digital-to-analog converter (DAC) featuring an integrated precision reference with a maximum drift of 10ppm/°C. It operates from a single 4.5V to 5.5V supply and delivers a full-scale output of 4.096V. The device includes high-performance, rail-to-rail output buffers guaranteed monotonic over temperature. Communication is handled via a SPI/MICROWIRE compatible 4-wire serial interface supporting clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±4LSB at 16 bits, low offset error of ±2mV max, and ultralow crosstalk between channels (<3nV•s).

Feature Summary

• Quad 16-bit resolution with integrated 10ppm/°C max precision reference.
• Rail-to-rail output buffers with guaranteed monotonicity over temperature.
• Maximum INL error of ±4LSB and low offset error of ±2mV.
• Ultralow DAC-to-DAC crosstalk (<3nV•s) and power-on reset capability.

Applications

• Mobile communications systems.
• Process control and industrial automation.
• Instrumentation equipment.
• Automatic test equipment.
• Automotive applications.

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm that the BCUF designation corresponds to the commercial temperature grade (0°C to 70°C) and the 20-lead QFN package. Ensure the H16 suffix matches the required 4.096V full-scale output specification for your design requirements.

Selection Notes

Select the LTC2654BCUF-H16#TRPBF for designs requiring four independent 16-bit voltage outputs with high accuracy and low noise. This part is suitable for single-supply applications operating between 4.5V and 5.5V. Consider the external reference mode if a different full-scale voltage range is needed, as the external reference sets the output span to twice the input voltage.

Part Context

This component belongs to the LTC2654 family of quad DACs, which also offers 12-bit resolution options and alternative full-scale voltages such as 2.5V (-L option). The -H suffix specifically denotes the 4.096V internal reference configuration, while the -C suffix indicates the commercial temperature range. Other packages in the family include the 16-lead narrow SSOP.

Replacement Considerations

Direct pin-compatible replacements within the same package and temperature grade include other variants of the LTC2654 family, such as the LTC2654BIUF-H16#TRPBF for industrial temperature range or LTC2654CUF-L16#TRPBF for 2.5V full-scale output. Verify that any substitute maintains the 16-bit resolution and 4-wire SPI interface compatibility.