Designed for a wide variety of signal processing and data acquisition applications, the AD8138 is a low-distortion, differential analog-to-digital converter driver that maximizes the distortion performance in high-performance differential ADCs and current-output DACs. Applications include ADC driving, single-ended to differential conversion, IF and baseband gain blocks, differential buffers and line drivers. The device offers versatile functionality with a wide bandwidth of 300 MHz and low harmonic distortion of –94 dBc at 5-MHz worst harmonic. When driving high-performance ADCs, the chip eliminates the need for a transformer, while preserving the low-frequency and dc information. Fast overload recovery safeguards sampling accuracy.