Titlebook: Resistor-based Temperature Sensors in CMOS Technology; Sining Pan,Kofi A.A. Makinwa Book 2022 The Editor(s) (if applicable) and The Author

发酵

Application-Driven Designs,arity is similar to that of the Wheatstone bridge sensor output, the RC frequency reference error can be mostly removed by simple offset trims to the outputs of both the RC filter and the temperature sensor. Its remaining error is less than ±400 ppm from −45 °C to 85 °C.

arsenal

我说不重要

带来的感觉

Sensor and Readout Topologies,sensor structures are dual-R (with a resistor reference) and RC (with a capacitor reference). The former is more energy efficient, while the latter is more accurate. Among popular front-end topologies, Wien-bridge (RC) and Wheatstone bridge (dual-R) are preferred. To achieve high-resolution, they should be digitized by Delta-Sigma ADCs (ΔΣ-ADCs).

AGGER

Osteons

exercise

Sensor and Readout Topologies,he different sensing resistors available in standard CMOS technology, silicided resistors are chosen due to their large temperature sensitivity and high stability. Apart from the sensing resistor, a reference impedance is required to convert resistance changes into digital information. Two possible

令人悲伤

宫殿般

,Wheatstone Bridge–Based Temperature Sensors,cuits using instrumentation amplifiers, sensors presented in this chapter are directly readout by DAC resistors and CTΔΣ-ADCs. The first prototype uses a single-bit CTΔΣ-ADC and achieves a resolution figure-of-merit (FoM) of 65 fJ·K.. By systematically improving the design, the FoM of the fourth des

易改变

Application-Driven Designs,th power scaling and properly-designed parallel DAC resistors, this sensor consumes only 6.6 μW, and achieves a 0.2 °C inaccuracy from 27.5 °C to 47.5 °C after an on-chip trimming, which greatly simplifies its digital backend. The second design is a sensor embedded in an RC-based frequency reference