**AD9742ARU: A 14-Bit, 165 MSPS High-Speed TxDAC® Digital-to-Analog Converter**

The **AD9742ARU** represents a high-performance member of Analog Devices' renowned TxDAC® series, specifically engineered to meet the demanding requirements of modern communication, instrumentation, and video systems. As a **14-bit resolution, 165 MSPS (Mega Samples Per Second) digital-to-analog converter (DAC)**, it is designed to provide exceptional dynamic performance, accuracy, and reliability for high-speed transmission applications.

A key feature of the AD9742ARU is its **exceptional dynamic performance** at high update rates. With a typical spurious-free dynamic range (SFDR) of 80 dBc at 5 MHz output, this DAC ensures clean and precise signal generation, which is critical for minimizing noise in broadband applications. The device utilizes a segmented current-source architecture combined with a proprietary switching technique, which minimizes glitch energy and enhances linearity. This results in a superior **differential nonlinearity (DNL)** of ±0.5 LSB and excellent **intermodulation distortion** performance, making it ideal for complex modulation schemes used in wireless infrastructure and software-defined radio.

The AD9742ARU operates on a single +3.3 V supply and incorporates an integrated 1.20 V reference, simplifying system design and reducing external component count. Its current-output architecture provides flexibility, allowing for both single-ended and differential output configurations via an external RF transformer or operational amplifier. Furthermore, the DAC supports a **programmable full-scale output current** ranging from 2 mA to 20 mA, enabling designers to optimize performance for power consumption and signal amplitude requirements.

Packaged in a compact 28-lead TSSOP, the AD9742ARU is designed for space-constrained applications while maintaining robust thermal performance. Its compatibility with LVDS and CMOS digital interfaces ensures easy integration with modern FPGAs and DSPs. Targeting applications such as **communications transmitters, medical imaging, and high-definition video systems**, this converter stands out for its blend of speed, resolution, and analog fidelity.

**ICGOOODFIND**: The AD9742ARU is a standout high-speed DAC that delivers high resolution, excellent dynamic performance, and design flexibility, making it a top choice for advanced digital-to-analog conversion in demanding industrial and communication applications.

**Keywords**: High-Speed DAC, 14-Bit Resolution, 165 MSPS, Dynamic Performance, TxDAC®.