A nW Sub 1-Volt MOSFET-Only Voltage Reference with a 32 ppm/°C Temperature Coefficient and 0.648V Power Supply. - Aliya Najeeb; Anakha P. S.; Deepitha D.; Mathai Charly; Nithin Thomas Abraham; Dhanaraj Kakkanattu Jagalchandran (TENCON, 2023)