The AD558JNZ is an 8-bit, 40 MSPS analog-to-digital converter (ADC) from Analog Devices. It is a monolithic converter that integrates many of the necessary AD functions onto a single chip. This reduces power consumption, board space, and costs. The AD558JNZ offers superior linearity and SFDR performance, making it ideal for applications such as medical imaging, sonar, radar, and digital video broadcast. It features 5V and 3.3V operation, low power consumption, and high sample rates up to 40 MSPS. It also includes several features such as offset and gain adjustment, external synchronization, and programmable outputs. With its high accuracy, low power consumption, and low noise performance, the AD558JNZ is a great choice for many high-end ADC applications.