The present disclosure relates to methods and systems for LNAs with high linearity and low noise for wideband receivers that receive high dynamic range signals. A multi-stage multipath LNA is disclosed in which outputs from various stages are amplified with variable gains and combined in parallel. A smart gain control unit evaluates the noise and non-linearity characteristics associated with each gain stage to configure the variable gains for the various stages to generate an overall LNA gain that minimizes the overall noise and/or non-linearity characteristics of the LNA while ensuring that the overall gain for the LNA satisfies the desired gain. The variable gains may be configured to change smoothly over the dynamic range of the input signal. Noise is minimized by reducing additional gain stages and by the smooth change in gain when switching between stages. High linearity performance is maintained by minimizing the number of gain stages combined.