AD9760ARUZ

Digital To Analog Converters Overview

The AD9760ARUZ is a 10-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 single supplies from 2.7 V to 5.5 V, consuming 175 mW at 5 V with 20 mA output. Key specifications include ±0.5 LSB INL, ±0.25 LSB DNL, and a 35 ns settling time. An integrated 1.20 V bandgap reference and edge-triggered latches support direct interfacing with CMOS logic families.

Digital To Analog Converters Feature Summary

• 125 MSPS update rate with 10-bit resolution
• Differential current outputs adjustable from 2 mA to 20 mA
• Integrated 1.20 V temperature-compensated bandgap reference
• Edge-triggered input latches for +3 V and +5 V CMOS compatibility

Digital To Analog Converters Applications

• Communication transmit channels including basestations
• Set top boxes and digital radio links
• Direct Digital Synthesis (DDS) systems
• General instrumentation applications

Digital To Analog Converters Procurement Notes

Verify the specific suffix ARUZ corresponds to the 28-lead TSSOP package with industrial temperature rating (-40°C to +85°C). Confirm that the internal reference configuration matches system requirements, as disabling it requires connecting REFLO to AVDD. Ensure supply voltages remain within the 2.7 V to 5.5 V range to maintain specified performance levels.

Digital To Analog Converters Selection Notes

Select the AD9760ARUZ when 10-bit resolution and 125 MSPS speed are required within the TxDAC family. Consider the AD9760ARUZ50 if operation is limited to 50 MSPS. Evaluate power consumption against the 2 mA to 20 mA full-scale current adjustment capability. Verify thermal management needs, noting the 97.9°C/W junction-to-ambient resistance for the TSSOP package.

Digital To Analog Converters Part Context

The AD9760ARUZ belongs to the TxDAC product family, which includes pin-compatible 8-, 12-, and 14-bit variants. This family shares identical interface options, packages, and pinouts, allowing for design flexibility based on resolution and cost requirements. The AD9760 specifically serves as the 10-bit member optimized for high-performance transmit signal paths.

Digital To Analog Converters Replacement Considerations

Pin-compatible alternatives within the TxDAC family include the AD9750 (8-bit), AD9742 (12-bit), and AD9764 (14-bit). These devices share the same 28-lead SOIC and TSSOP footprints and interface logic, enabling upward or downward selection based on performance and cost without PCB redesign.

Digital To Analog Converters FAQ

How is the internal 1.20 V reference disabled?

Connect the REFLO pin to the AVDD supply rail. When enabled, REFLO must be tied to ACOM.

What determines the full-scale output current?

The full-scale current is set by an external resistor RSET connected between FSADJ and AVDD, working with the internal control amplifier to adjust the current from 2 mA to 20 mA.

Can the AD9760 operate with a 3 V supply?

Yes, the device supports single supplies from 2.7 V to 5.5 V. Operation below 3 V may require reducing the output current to 12 mA or less for optimum performance.