AD9765ASTZ

Digital To Analog Converters Overview

The AD9765ASTZ is a dual-channel, 12-bit CMOS digital-to-analog converter (DAC) from the TxDAC+ family. It integrates two high-performance DAC cores, a 1.20 V temperature-compensated bandgap voltage reference, and digital interface circuitry within a 48-lead LQFP package. The device supports an update rate of up to 125 MSPS with excellent dynamic performance, achieving a Spurious-Free Dynamic Range (SFDR) of 75 dBc at a 5 MHz output frequency. It operates on a single 3.3 V or 5 V supply, consuming 380 mW at full scale. Key specifications include a settling time of 35 ns, differential current outputs with a nominal full-scale current of 20 mA, and gain matching of 0.1%.

Digital To Analog Converters Feature Summary

• Dual 12-bit DACs with 125 MSPS update rate
• Integrated 1.20 V temperature-compensated bandgap reference
• Flexible dual-port or interleaved data input modes
• Differential current outputs supporting single-ended or differential applications

Digital To Analog Converters Applications

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

Digital To Analog Converters Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or direct manufacturer channels. Confirm RoHS compliance status via official documentation. Ensure storage conditions account for moisture sensitivity levels as specified in the datasheet. Validate that the specific lot code matches current manufacturing standards.

Digital To Analog Converters Selection Notes

Select the AD9765ASTZ when 12-bit resolution and 125 MSPS speed are required for I/Q data processing. Consider the AD9763 for 10-bit or AD9767 for 14-bit resolutions if different precision levels are needed. Ensure the application supports the 48-lead LQFP package dimensions and thermal requirements of 380 mW power dissipation.

Digital To Analog Converters Part Context

The AD9765ASTZ belongs to the AD976x series, which includes pin-compatible variants like the AD9763 and AD9767. This family is designed for low-distortion transmit applications in wireless communications. The ASTZ suffix indicates a lead-free, RoHS-compliant version packaged in the standard LQFP format.

Digital To Analog Converters Replacement Considerations

Pin-compatible alternatives within the same family include the AD9763 (10-bit) and AD9767 (14-bit). Verify that the replacement meets the specific resolution and dynamic performance requirements of the original design.