Super-Beta Fully Differential Amplifiers Launch New Era of Precision (Download)
Use of differential signaling in analog front ends is increasing across a range of applications, from audio processing to factory automation. Differential signaling offers three key advantages. First is improved voltage swing, with two out-of-phase outputs doubling the dynamic range of a single-ended implementation. Second is improved noise immunity, with the differential output signals canceling out common-mode disturbances, power-supply noise, ground disturbances, and electromagnetic interference. And third is reduced harmonic distortion, with the differential output configuration theoretically canceling even-order harmonics.