DAC5681ZIRGCR

Digital To Analog Converters Overview

The DAC5681ZIRGCR is a 16-bit, 1.0-GSPS digital-to-analog converter featuring 1x to 4x interpolation capabilities. It utilizes a 64-pin VQFN package rated for operation between -40°C and 85°C. The device supports offset binary and two's complement input formats via parallel word interfaces. Key electrical specifications include an analog supply voltage range of 3V to 3.6V and a digital supply range of 1.71V to 2.15V. It delivers a maximum analog output voltage of 4.1V and a minimum of 2.5V. The component exhibits integral nonlinearity of ±4 LSB and differential nonlinearity of ±2 LSB.

Digital To Analog Converters Feature Summary

• Integrates 1x to 4x interpolation logic to reduce host processor data rates while maintaining high-speed conversion performance.
• Incorporates a delay-locked loop (DLL) to manage skew in LVDS input data streams, simplifying clocking requirements for high-speed applications.
• Features a segmented current-steering architecture with adjustable full-scale output currents ranging from 2mA to 20mA across complementary nodes.

Digital To Analog Converters Applications

• Wideband Code Division Multiple Access (WCDMA) base station transmitters
• Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) signal generation
• Direct Digital Synthesis (DDS) systems requiring high spectral purity

Digital To Analog Converters Procurement Notes

Verify the specific suffix ZIRGCR against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the procurement channel provides traceability documentation. Confirm that the 64-VQFN package dimensions match the target PCB footprint. Validate that the operating temperature range meets the environmental requirements of the final assembly. Check for any recent production change notices affecting the component revision.

Digital To Analog Converters Selection Notes

Select this component when a single-channel solution with integrated interpolation is required for high-frequency signal generation. Compare against the DAC5682Z if dual-channel synchronization is necessary. Consider the DAC5681 without the Z suffix if interpolation features are not needed. Evaluate power consumption differences between internal and external reference configurations. Assess board space constraints regarding the 9mm x 9mm QFN package size relative to thermal dissipation needs.

Digital To Analog Converters Part Context

This part belongs to the DAC5681 family of high-speed converters designed for wireless infrastructure. It serves as a direct upgrade path from older CMOS-based DACs by offering superior linearity and lower noise. The Z variant specifically denotes the inclusion of interpolation filters, distinguishing it from the base DAC5681 model which lacks these digital processing blocks.

Digital To Analog Converters Replacement Considerations

• DAC5681IRGC25

Digital To Analog Converters FAQ

What input data formats does the DAC5681ZIRGCR support?

The device supports Offset Binary and Two's Complement Binary input formats.

How is the LVDS interface managed in this component?

It includes an on-chip Delay-Locked Loop (DLL) to control skew for the LVDS input data, ensuring timing integrity at 1.0 GSPS.

Is the DAC5681ZIRGCR available in a through-hole package?

No, it is exclusively available in a surface-mount 64-VQFN (Very Thin Quad Flat No-leads) package.