AD9767ASTZRL

Digital To Analog Converters Overview

The AD9767ASTZRL is a dual-channel, 14-bit CMOS digital-to-analog converter (DAC) from the TxDAC+ family. It supports update rates up to 125 MSPS and integrates two high-performance DAC cores, an on-chip 1.2 V temperature-compensated bandgap reference, and digital interface circuitry within a 48-lead LQFP package. The device operates on a single supply of 3.3 V or 5 V, consuming 380 mW at full scale. Key electrical specifications include ±1.5 LSB integral nonlinearity (INL), ±1 LSB differential nonlinearity (DNL), and excellent gain matching of 0.1%. 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
• Integrated 1.2 V temperature-compensated voltage reference
• Flexible dual-port or interleaved data input modes for I/Q processing
• Independent or single-resistor full-scale current control

Digital To Analog Converters Applications

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

Digital To Analog Converters Procurement Notes

Verify that the ordering suffix 'RL' corresponds to the tape-and-reel packaging format as specified in the manufacturer's ordering guide. Confirm that the component meets RoHS compliance standards required for the target assembly process. Ensure the supply voltage rails match the 3.3 V or 5 V operational requirements defined in the datasheet.

Digital To Analog Converters Selection Notes

Select this component when 14-bit resolution and 125 MSPS speed are required for dual-channel applications. Consider the AD9767 over lower-resolution variants if superior spurious-free dynamic range (SFDR) and linearity are critical. Verify that the 48-lead LQFP footprint fits the PCB layout constraints and that the thermal resistance of 91°C/W is manageable for the intended power dissipation.

Digital To Analog Converters Part Context

The AD9767 is part of a pin-compatible family including the AD9763 (10-bit) and AD9765 (12-bit). All members share the same 48-lead LQFP package and functional architecture, differing primarily in resolution. This allows for design flexibility while maintaining board compatibility across different performance tiers within the TxDAC+ series.

Digital To Analog Converters Replacement Considerations

The AD9763ASTZRL and AD9765ASTZRL are pin-compatible alternatives offering 10-bit and 12-bit resolutions respectively. These may be used if lower resolution is acceptable. No other direct substitutes are confirmed in the provided documentation.