LTC2654BIGN-L16#PBF

Overview

The LTC2654BIGN-L16#PBF is a quad 16-bit rail-to-rail digital-to-analog converter (DAC) from Analog Devices, housed in a 16-lead narrow SSOP package. It features an integrated precision reference with a maximum temperature coefficient of 10ppm/°C, setting the full-scale output to 2.5V. The device operates on a single supply voltage ranging from 2.7V to 5.5V and communicates via a 4-wire SPI/Microwire compatible serial interface supporting clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±4LSB, a typical settling time of 8.9µs for 16-bit accuracy, and ultralow crosstalk between channels of less than 3nV•s.

Feature Summary

• Quad 16-bit resolution with integrated 10ppm/°C max precision reference
• Rail-to-rail output buffers with <3nV•s DAC-to-DAC crosstalk
• SPI/Microwire compatible 4-wire serial interface with 50MHz clock rate
• Selectable power-on reset to zero-scale or mid-scale via PORSEL pin

Applications

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

Procurement Notes

Verify that the component matches the specific Industrial temperature grade (-40°C to +85°C) indicated by the 'I' suffix in the part number. Confirm the package type is the 16-Lead Narrow SSOP as specified by the 'GN' code. Ensure the ordering suffix '#PBF' corresponds to lead-free packaging requirements for the target assembly process.

Selection Notes

Select this part when a quad-channel configuration with high linearity (±4LSB INL) is required. The -L suffix indicates a 2.5V full-scale output suitable for 2.7V to 5.5V supply ranges. Consider the external reference mode if a different full-scale voltage is needed, as the output span becomes 2 times the external reference voltage. Verify that the 16-bit resolution meets the system's accuracy requirements compared to the 12-bit variants.

Part Context

This component belongs to the LTC2654 family of quad voltage-output DACs. It shares architectural similarities with other members like the LTC2654BCUF-L16#PBF but differs in package style (SSOP vs QFN) and temperature grade. The family is designed to advance performance standards for output drive and load regulation in single-supply applications.

Replacement Considerations

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