AD9764ARU

Digital To Analog Converters Overview

The AD9764ARU is a 14-bit, 125 MSPS CMOS 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 190 mW at 5 V with a 20 mA output. Key specifications include a settling time of 35 ns, an on-chip 1.20 V reference, and edge-triggered input latches compatible with +3 V and +5 V logic. It is housed in a 28-lead TSSOP package.

Digital To Analog Converters Feature Summary

• 14-bit resolution with 125 MSPS update rate
• Differential current outputs adjustable from 2 mA to 20 mA
• On-chip 1.20 V temperature-compensated bandgap reference
• Edge-triggered input latches for direct CMOS interface

Digital To Analog Converters Applications

• Communication transmit channels
• Base stations
• ADSL/HFC modems
• Instrumentation

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'RU' corresponds to the 28-lead TSSOP package as defined in the ordering guide. Confirm RoHS compliance status via the manufacturer's documentation. Ensure the design accounts for the industrial temperature range of -40°C to +85°C during component selection.

Digital To Analog Converters Selection Notes

Select this component when high linearity and dynamic performance are required for single-channel applications. The wide full-scale current adjustment allows optimization for power consumption versus signal swing. Consider the pin-compatible TxDAC family members (AD9762, AD9760, AD9708) if lower resolution or cost is prioritized over the 14-bit precision.

Digital To Analog Converters Part Context

The AD9764 serves as the 14-bit member of the Analog Devices TxDAC product family. This family includes pin-compatible 8-bit, 10-bit, and 12-bit variants, allowing designers to scale resolution based on application needs without redesigning the PCB layout. All devices share identical interface options and small outline packages.

Digital To Analog Converters Replacement Considerations

Pin-compatible alternatives within the same family include the AD9762 (12-bit), AD9760 (10-bit), and AD9708 (8-bit). These parts maintain the same footprint and interface but offer different resolution and performance characteristics.