Aideepen OPA1632 Fully-Differential Audio Operational Amplifier Board ADC Driver Module

Hello, and welcome to the TI Precision Lab covering SAR ADC drive amplifier considerations when using fully differential amplifiers. Overall, this video will cover how to design data converter drive circuits using fully differential amplifiers, or FDAs. Specifically, in this section, we will learn the basic operation of an FDA. Also, we will cover how a single-ended signal can be converted to a fully differential signal using an FDA and an op amp. Here we introduce the fully differential amplifier. An FDA is similar to a voltage feedback op amp with some key differences. Both the FDA and op amp have differential inputs, but the FDA has a differential output-- V out plus and V out minus. Furthermore, the FDA has an input pin, Vocm, that controls the common mode of the output signal. Also, the op amp has a single feedback path, where the FDA has two feedback paths. Since the FDA has two o