A low noise amplifier (LNA) includes a bank of selectable first transistors and a bank of selectable second transistors complementary to the first transistors. The LNA also includes a plurality of switches to select one or more of the first transistors and to select one or more of the second transistors, the selected first transistors positioned in series with respect to the selected second transistors. The LNA also includes switching logic to control the plurality of switches, to simultaneously vary selection of the first transistors and the second transistors during calibration to substantially match output second-order distortion of the selected first transistors with that of the selected second transistors, to create high second-order intercept points.