**AD9753ASTZ: A 10-Bit, 125 MSPS High-Speed TxDAC Digital-to-Analog Converter**

The **AD9753ASTZ** is a high-performance, 10-bit resolution digital-to-analog converter (DAC) from Analog Devices, designed specifically for high-speed transmission applications. Operating at an impressive **125 Million Samples Per Second (MSPS)**, this member of the TxDAC® product family is engineered to deliver exceptional dynamic performance and signal integrity, making it a cornerstone component in communication systems, medical imaging, and high-frequency instrumentation.

A key architectural feature of the AD9753ASTZ is its **segmented current-source architecture**. This design minimizes glitch energy and enhances dynamic performance, which is critical for maintaining clean signal generation. The device incorporates a large CMOS digital mux and edge-triggered latches, ensuring precise timing and data management. Its differential current outputs provide a superior solution for rejecting common-mode noise, a vital characteristic in electrically noisy environments. The full-scale output current can be easily programmed via an external resistor, offering designers significant flexibility.

The **on-chip phase-locked loop (PLL)** clock multiplier is another significant advantage. It allows the internal DAC update rate to run at twice the external input clock frequency, effectively reducing the complexity and cost of the external clocking circuitry required to achieve the maximum 125 MSPS performance. This feature is particularly beneficial in maximizing throughput while minimizing system design overhead.

Targeted primarily at **communications transmit channels**, the AD9753ASTZ excels in generating high-quality, intermediate frequency (IF) signals for applications such as wireless base stations, cable modems, and digital broadcast systems. Its high spurious-free dynamic range (SFDR) and low intermodulation distortion ensure that the generated analog signals are clean and accurate, directly impacting the overall quality and efficiency of the transmission system.

Housed in a compact 48-lead LQFP package, the device is designed for robust operation in industrial temperature ranges, ensuring reliability across various demanding environments.

**ICGOOODFIND**: The AD9753ASTZ stands out as a highly integrated and performance-optimized solution for engineers designing next-generation transmit systems, offering an ideal blend of speed, precision, and design flexibility.

**Keywords**: High-Speed DAC, 125 MSPS, TxDAC®, Dynamic Performance, Communication Systems.