AD9767ASTZ

Digital To Analog Converters Overview

The AD9767ASTZ is a dual-channel, 14-bit CMOS digital-to-analog converter (DAC) from Analog Devices Inc., operating at update rates up to 125 MSPS. It integrates two TxDAC+ cores, an on-chip 1.2 V reference, and digital interface logic within a 48-lead LQFP package. The device supports 3.3 V or 5 V single-supply operation with typical power dissipation of 380 mW. Key electrical specifications include a settling time of 35 ns, differential nonlinearity (DNL) of ±1 LSB, and integral nonlinearity (INL) of ±1.5 LSB. It features differential current outputs with a nominal full-scale current of 20 mA.

Digital To Analog Converters Feature Summary

• Dual 14-bit DACs with 125 MSPS maximum update rate
• On-chip 1.2 V temperature-compensated bandgap voltage reference
• Flexible dual-port or interleaved data interface modes
• Gain matching typically 0.1% of full scale; offset error better than 0.02%

Digital To Analog Converters Applications

• Communications base stations
• Digital synthesis systems
• Quadrature modulation circuits
• 3D ultrasound imaging

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'ASTZ' against the manufacturer's ordering guide to confirm the industrial temperature range (-40°C to +85°C) and lead-free packaging status. Ensure compatibility with the required supply voltages (AVDD 3.3 V–5.5 V, DVDD 2.7 V–5.5 V) during component sourcing.

Digital To Analog Converters Selection Notes

Select this component for applications requiring high dynamic performance with SFDR up to 82 dBc at 1 MHz output. Consider the interleaved mode for I/Q data processing where channel synchronization is critical. Verify that the PCB layout accommodates the 48-lead LQFP package dimensions and thermal requirements for 380 mW dissipation.

Digital To Analog Converters Part Context

The AD9767 is part of the AD9763/AD9765/AD9767 family, which shares pin compatibility and functional architecture across 10-, 12-, and 14-bit resolutions. All variants utilize the same TxDAC+ core technology and 48-lead LQFP footprint, allowing for design flexibility based on resolution requirements without changing the board layout.

Digital To Analog Converters Replacement Considerations

Pin-compatible alternatives within the same family include the AD9765 (12-bit) and AD9763 (10-bit). These parts share identical pinouts and operational characteristics but offer lower resolution. No other cross-family replacements are confirmed in the provided documentation.