Skip to Main Content
A low-voltage bandgap reference (BGR) circuit is designed and fabricated in a 90 nm CMOS technology. To mitigate error resulting from the mismatch in temperature dependency of the current in the output current mirror device and that of the BGR core, an output-regulated current mirror is incorporated. Experimental results show that the output voltage is 497.2 mV at 25οC with a temperature coefficient of 28.3 ppm/ C between -40οC and 80οC. The circuit occupies 0.0337 mm2 and dissipates 276.6 pW with a supply voltage of 1.2 V.