DAC5681IRGCT

Digital To Analog Converters Overview

The DAC5681IRGCT is a 16-bit, 1.0 GSPS high-speed digital-to-analog converter manufactured by Texas Instruments. It features a current-steering architecture with differential current outputs capable of 2 to 20 mA full-scale current. The device operates on analog supply voltages between 3 V and 3.6 V and digital supply voltages between 1.7 V and 1.9 V. Key performance metrics include a typical settling time of 10.4 ns, INL/DNL specifications of ±4/±2 LSB, and an operating temperature range of -40°C to 85°C. It utilizes a 64-VQFN (9x9 mm) package with exposed pad for surface-mount installation.

Digital To Analog Converters Feature Summary

• Integrates a 1.0 GSPS update rate with 16-bit resolution for high-fidelity signal generation.
• Includes on-chip terminal resistors and a delay-locked loop (DLL) for skew control in LVDS data interfaces.
• Features a segmented current array architecture with adjustable full-scale output current from 2 mA to 20 mA.
• Provides a temperature-compensated internal 1.2 V voltage reference as an alternative to external references.

Digital To Analog Converters Applications

• Wireless base station transmitter modules
• Broadband wireless access systems
• Radar signal processing systems
• High-performance test and measurement instruments

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'IRGCT' against the manufacturer's latest datasheet to confirm pinout compatibility and electrical characteristics. Ensure that the required analog and digital supply voltages align with the specified ranges before integration. Confirm that the 64-VQFN package dimensions match the target PCB footprint and thermal design requirements.

Digital To Analog Converters Selection Notes

Select this component when a single-channel, 16-bit resolution with 1 GSPS sampling speed is required. Consider the DAC5682Z or DAC5681Z if interpolation or clock multiplication PLL features are necessary, as these are available in the upgraded family members. Evaluate power consumption constraints, noting the typical dissipation at maximum update rates.

Digital To Analog Converters Part Context

This part belongs to the DAC5681 family of high-speed data converters designed for demanding RF applications. It serves as a foundational component for generating complex waveforms in communication infrastructure. The device is often paired with evaluation boards like the DAC5681ZEVM for initial circuit validation and performance tuning during the development phase.

Digital To Analog Converters Replacement Considerations

The DAC5681ZIRGCR is documented as a similar replacement option within the same product family. Verify functional equivalence regarding interface protocols and pin configurations before substitution.