GRF Gain Block Amplifiers Guerrilla RF GRF Gain Block Amplifiers are broadband, low noise linear gain blocks designed for small cell, wireless infrastructure, and other high-performance RF applications. The GRF2003 offers strong RF performance over 0.5 to 10.0GHz with a single match. With optimized external components, the device can be operated down to 100MHz. The GRF2012 exhibits outstanding broadband NF, linearity over 700 to 3800MHz with a single match. The GRF3042 is designed for applications in the 0.05 to 13.0GHz spectrum, exhibiting a typical low noise figure (NF) of 3.5dB along with high gain. This resistively biased device employs an external resistor in series with VDD to set a nominal IDDQ of 45mA. GRF3042 is internally matched to 50Ω at the input and output ports. The GRF3044 is designed for applications up to 11.0GHz, exhibiting a typical low noise figure (NF) of 1.8dB along with high gain. The device employs an external resistor in series with VDD to set a nominal IDDQ of 100mA. GRF3044 is internally matched to 50Ω at the input and output ports.