An Energy‐Efficient Ring Oscillator Based on Hybrid Voltage Gated Spin Orbit Torque/CMOS Circuit

Based on voltage gated spin orbit torque (VG‐SOT) MTJ and conventional CMOS circuits, a hybrid ring oscillator (RO) with high power‐efficiency and low jitter is proposed in this brief. When the oscillation frequency is 354.1 MHz, the power consumption is only 1.44 mW, and rms jitter is 735.72 fs, results in 1.8 and 9 of improvements, compared with the 2‐terminal MTJ‐based hybrid RO.