AD9764ARUZ

Digital To Analog Converters Overview

The AD9764ARUZ is a 14-bit, 125 MSPS TxDAC® digital-to-analog converter in a 28-lead TSSOP package. 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, dissipating 190 mW at 5 V (20 mA) or 45 mW at 3 V (2 mA). An integrated 1.20 V temperature-compensated bandgap reference and edge-triggered input latches are included. Dynamic performance includes a typical SFDR of 82 dBc at 25 MSPS.

Digital To Analog Converters Feature Summary

• 14-bit resolution with 125 MSPS update rate
• Differential current outputs adjustable from 2 mA to 20 mA
• Integrated 1.20 V bandgap reference and edge-triggered latches
• Single +5 V or +3 V supply operation (2.7 V to 5.5 V)

Digital To Analog Converters Applications

• Communication transmit channels for basestations
• ADSL/HFC modems
• Instrumentation

Digital To Analog Converters Procurement Notes

Verify the 'RUZ' suffix indicates the 28-lead TSSOP package and RoHS compliance. Confirm the industrial temperature range (-40°C to +85°C) matches system requirements. Ensure the ordering code corresponds to the specific reel or tube quantity if applicable.

Digital To Analog Converters Selection Notes

Select based on required resolution and update speed within the TxDAC family. Adjust full-scale current via RSET to balance power dissipation against dynamic performance. Use differential outputs to enhance SFDR and cancel common-mode errors. Ensure logic levels match DVDD for proper latch interface.

Digital To Analog Converters Part Context

The AD9764 is the 14-bit member of the pin-compatible TxDAC series, which also includes 8-, 10-, and 12-bit variants. This allows designers to scale component selection based on performance and cost while maintaining identical interface options and pinouts across the family.

Digital To Analog Converters Replacement Considerations

Pin-compatible substitutes within the TxDAC family include the AD9762 (12-bit), AD9760 (10-bit), and AD9758 (8-bit). These offer lower resolution but share the same package and interface.