23.7 A BJT-Based Temperature Sensor with $\pm 0.1^{\circ}\mathrm{C}(3\sigma)$ Inaccuracy from -55°C to 125°C and a 0.85pJ.K² Resolution FoM Using Continuous-Time Readout

A BJT-Based 0.08-mm² Oversampling SAR Temperature-to-Digital Converter for Thermal Drift Compensation in MEMS Inertial Sensors

“…2) It should feature a relatively high area efficiency; considering that a standard 180-nm CMOS process and a BJT-based approach were adopted for the proposed design as will be recalled in the following of this article, the area target was set to 0.1 mm 2 according to the compactness level of the state-of-the-art temperature sensors designed in such a mature technology node like [21] or [22].…”