A 0.0016 mm2 0.64 nJ Leakage-Based CMOS Temperature Sensor

A 0.0016 mm2 0.64 nJ Leakage-Based CMOS Temperature Sensor

This paper presents a CMOS temperature sensor based on the thermal dependencies of the leakage currents targeting the 65 nm node. To compensate for the effect of process fluctuations, the proposed sensor realizes the ratio of two measures of the time it takes a capacitor to discharge through a transistor in the subthreshold regime. Furthermore, a novel charging mechanism for the capacitor is pr...

Ring Oscillator Based CMOS Temperature Sensor Design

This paper presents the ring oscillator based temperature sensor. The method is highly area efficient, simple and easy for IC implementation as compared to traditional temperature sensors. The proposed temperature sensor was fabricated using 0.35 μm technology, which occupies extremely small silicon area. It exploits the frequency of the ring oscillator that is proportional to temperature, whic...

A VDD independent temperature sensor circuit with scaled CMOS process

A CMOS Smart Temperature and Humidity Sensor with Combined Readout

A fully-integrated complementary metal-oxide semiconductor (CMOS) sensor for combined temperature and humidity measurements is presented. The main purpose of the device is to monitor the hermeticity of micro-packages for implanted integrated circuits and to ensure their safe operation by monitoring the operating temperature and humidity on-chip. The smart sensor has two modes of operation, in w...

Cmos-based Luminescent Co2 Sensor

In this work, we demonstrate a portable optical CO2 sensor using CMOS image sensing with polarization signal isolation. Luminescent CO2 detection methods generally exhibit faster response time and increased sensitivity over the established commercial sensors (NDIR, electrochemical), but require bulky and expensive spectrophotometry equipment which confines them to a lab. Components used in our ...