This paper presents a 77 GHz Receiver (Rx) for automotive radar with high linearity, low noise figure (NF) and reconfigurable gain and bandwidth of the analog baseband (ABB), implemented in TSMC 65 nm CMOS general purpose (GP) technology. The Rx includes a low-noise amplifier (LNA), sharing the transconductance stage with a double-balanced mixer, an LO chain with a frequency doubler and an analog baseband. The entire Rx consumes 123 mW. Measurement results show that the input 1 dB compression point (P_1dB) is -14 dBm at 81 GHz, a conversion gain (CG) of 20.5-62.5 dB is digitally tunable at 77 GHz, and an NF of 11.2-18.3 dB is achieved over the frequency range of 76-81 GHz.