Table 6.

Comparison of key performance metrics for different Bandgap reference (BGR) architectures.

Performance parameters	CM-BGR	Cascaded CM-BGR	Operational amplifier based-BGR	Sub-BGR	Proposed BGR
Supply voltage	1.3–4 V	2–4 V	2–3.8 V	1.8–3.8 V	1.8–3.8 V
Supply current	20.61 µA	14.60 µA	14.89 µA	43.06 µA	46.26 µA
Reference voltage	1.49	1.152	1.154	0.724	0.91
Temperature coeff(ppm/°C)	8.12	15.7	13.101	10.90	3.33
Line regulation (mean-μ) (SD-σ) (σ/μ)	(176 mV)	(137 mV)	(51 mV)	(18 mV)	(723 uV)
	(16 mV)	(12 mV)	(25 mV)	(5 mV)	(132 uV)
	(0.09)	(0.087)	(0.45)	(0.27)	(0.18)
Power supply rejection ratio (PSRR)	− 13.6	− 55.03	− 63.54	− 73.03	− 81.9