Texas Instruments - Digitally-controlled wideband variable-gain amplifier (LMH6401)

exas Instruments LMH6401 5GHz wideband, digitally controlled, variable gain amplifier (DVGA) is designed for DC to radio frequency (RF), intermediate frequency (IF) and high speed time domain applications. This device is an ideal analog-to-digital converter (ADC) driver for DC or AC coupled applications that require automatic gain control (AGC). Optimized noise and distortion performance to drive ultra-wideband ADCs. For full-scale signal levels, the amplifier has a noise figure of 8dB at maximum gain and -63dBc harmonic distortion at 1GHz. The device supports single and divided supply operation to drive the ADC. A common-mode reference input pin is provided to align the amplifier output common-mode with the ADC input requirements. Applications include test and measurement, ultra-wideband ADC drivers, communication receivers, RF sampling subsystems, SAW filter buffers / drivers, defense and radar. The company also has a TI LMH6401 evaluation module (EVM) in stock that evaluates a single LMH6401 digitally controlled variable gain amplifier (DVGA) in a 16-pin high-performance RF package. The evaluation module is designed to quickly and easily demonstrate the functionality and performance of the LMH6401 at all gain settings.