AD9762ARURL7

Digital To Analog Converters Overview

The AD9762ARURL7 is a 12-bit, 125 MSPS digital-to-analog converter (DAC) from the TxDAC family. It features differential current outputs with a nominal full-scale range of 2 mA to 20 mA and an output impedance exceeding 100 kΩ. The device operates on a single supply voltage between 2.7 V and 5.5 V, consuming 175 mW at 5 V with maximum current or 45 mW at 3 V with reduced current. Key specifications include a settling time of 35 ns, an integrated 1.20 V temperature-compensated bandgap reference, and edge-triggered input latches compatible with +3 V and +5 V CMOS logic.

Digital To Analog Converters Feature Summary

• 12-bit resolution with 125 MSPS update rate
• Differential current outputs adjustable from 2 mA to 20 mA
• Integrated 1.20 V bandgap voltage reference
• Single-supply operation (2.7 V to 5.5 V)
• Edge-triggered CMOS input latches

Digital To Analog Converters Applications

• Communication transmit channels for basestations
• ADSL/HFC modems
• Direct Digital Synthesis (DDS)
• Instrumentation systems

Digital To Analog Converters Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified suppliers. Confirm the package type matches the required PCB footprint, as the AD9762 is available in both 28-lead SOIC and TSSOP configurations. Ensure proper electrostatic discharge (ESD) handling protocols are followed during storage and assembly due to the device's sensitivity.

Digital To Analog Converters Selection Notes

Select this component when high dynamic performance and low power consumption are required for transmit signal paths. The segmented current source architecture minimizes spurious components. Consider the full-scale current adjustment capability to optimize power dissipation versus gain requirements. Verify that the interface logic levels match the +3 V or +5 V CMOS standards supported by the edge-triggered latches.

Digital To Analog Converters Part Context

The AD9762ARURL7 belongs to the TxDAC product family, which includes pin-compatible 8-bit, 10-bit, and 14-bit DACs. This design allows for flexible upward or downward selection based on resolution, performance, and cost constraints without altering the board layout. The 'URL7' suffix indicates the specific tape and reel packaging variant of the standard AD9762 part.

Digital To Analog Converters Replacement Considerations

Pin-compatible alternatives within the same family include the AD9752 (14-bit), AD9760 (10-bit), and AD9768 (8-bit). These devices share the same interface options and package pinout, facilitating direct substitution if resolution or performance adjustments are needed.