CMOS temperature sensors are attractive for their low-power operation. However, they suffer from narrow temperature range operation due to the complex relationship between the drain current and temperature. This paper proposes a CMOS based temperature sensor that utilizes the statistical properties of sub-threshold MOSFET current to suppress several error sources. The sensor operates under a supply voltage of 0.8 V to 1.2 V and achieves an error of −0.53/+0.43 ℃ across a range of −20 ℃ to 120 ℃ after a two-point calibration.