A 2.3nW Gate-Leakage Based Sub-Bandgap Voltage Reference with Line Sensitivity of 0.0066%/V from -40°C to 150°C for Low-Power IoT Systems. - Arnab Dey; Bharadwaj Subramaniam; Ashfakh Ali; Bhartipudi Sahishnavi; Abhishek Pullela; Zia Abbas (ISCAS, 2023)