Low-complexity 0.55-V 2.5-μW bandgap reference and power-on reset hybrid circuit

A near-threshold low-complexity bandgap reference (BGR) and power-on reset (POR) hybrid circuit is implemented in 65 nm CMOS, with an ultra-low supply voltage of 0.55 V and power consumption of 2.5 μW. The BGR employing amplifier offset voltage and current matching, and the POR based on offset voltage matching and loop settling feature, are proposed. The circuit-level simulation results verify tha...