DefinePK

Abstract

An energy efficient temperature sensor for constant temperature monitoring has been introduced in this paper. The proposed sensor doesn’t use BJT for sensing; instead it utilizes the temperature dependency of threshold voltage of MOSFETs for designing of this sensor. The sensor circuit is designed with separate biasing circuit for limiting the power dissipation of the circuit. Both PTAT and CTAT voltages has been extracted from the circuit. The proposed temperature sensor is simulated in Cadence Analog Design Environment with UMC90nm library. The circuit has been designed for the range of -60oC to 150oC. The simulation result shows an inaccuracy of ±1.3oC and 862nW power consumption.