The document describes the features and characteristics of the AD8138 low distortion differential ADC driver. The driver features easy-to-use single-ended-to-differential conversion, adjustable output common-mode voltage, externally adjustable gain, low harmonic distortion, fast settling, low input voltage noise, wide supply range, low power consumption, and high gain flatness. It is suitable for applications such as ADC drivers, single-ended-to-differential converters, IF and baseband gain blocks, differential buffers, and line drivers.