Texas Instruments LMH6401 5GHz Digital Variable-Gain Amplifier is a wideband, digitally-controlled, variable-gain amplifier (DVGA). It is designed for dc to radio frequency (RF), intermediate frequency (IF), and high-speed time-domain applications. The device is an ideal analog-to-digital converter (ADC) driver for dc- or ac-coupled applications that require an automatic gain control (AGC). Noise and distortion performance is optimized to drive ultra-wideband ADCs. The amplifier has an 8dB noise figure at maximum gain and a -63dBc harmonic distortion at 1GHz for full-scale signal levels. The device supports both single- and split-supply operation for driving an ADC. A common-mode reference input pin is provided to align the amplifier output common-mode with the ADC input requirements.