8542.39.00.30 - Analog to digital converters (ADCs)

This HTS category, 8542.39.00.30, specifically covers analog-to-digital converters (ADCs). These are essential electronic integrated circuits that transform continuous analog signals, such as sound waves or temperature readings, into discrete digital values that can be processed by digital systems. ADCs are fundamental components in a wide array of electronic devices where the real world needs to be interpreted by digital logic, including audio equipment, sensors, measurement instruments, and telecommunications systems.

It is important to distinguish these ADCs from their sibling categories. While 8542.39.00.40 covers digital-to-analog converters (DACs), which perform the inverse function of converting digital signals back to analog, and 8542.39.00.50 encompasses other data converters not specifically defined as ADCs or DACs, this particular heading is exclusively for those circuits designed to convert analog inputs into digital outputs. The primary functional difference lies in the direction and nature of the signal conversion.

As this classification is a leaf node, there are no further subcategories. Therefore, the classification within 8542.39.00.30 is determined by the core function of converting analog signals to digital. When classifying, attention should be paid to the stated purpose and technical specifications of the integrated circuit to confirm its role as an analog-to-digital converter.