The ADL5335 from ADI is a digital gain amplifier (DGA) that operates from 700 MHz to 4200 MHz. It has a differential input and single- ended output that facilitates a balun free connection between the broadband integrated transceivers with differential outputs and the RF gain blocks and drivers amplifiers with single-ended inputs. The gain of amplifier can be controlled via a SPI port to be between -8 dB and 12 dB in steps of 0.5 dB. The ADL5335 also features a fast attack function where the gain can rapidly increase or decrease by the application of a single pulse. It uses a thermometer-based digital step attenuator that ensures that gain changes are fundamentally glitch free. The amplifier is available in a 4 x 4 mm package.
This amplifier can be used in Software Defined Radios, RF Signal Processing, Wireless infrastructure and any other applications that required broadband operation.
