Sub-femto-farad resolution electronic interfaces for integrated capacitive sensors: A review

U Ferlito, AD Grasso, S Pennisi, M Vaiana… - IEEE Access, 2020 - ieeexplore.ieee.org
Capacitance detection is a universal transduction mechanism used in a wide variety of
sensors and applications. It requires an electronic front-end converting the capacitance …

Power-efficiency evolution of capacitive sensor interfaces

Z Tan, H Jiang, H Zhang, X Tang, H Xin… - IEEE Sensors …, 2020 - ieeexplore.ieee.org
Recent years have witnessed an improvement in the energy efficiency of capacitive sensor
interfaces by more than three orders of magnitude. This article reviews the architectural and …

A 2.92- W Capacitance-to-Digital Converter With Differential Bondwire Accelerometer, On-Chip Air Pressure, and Humidity Sensor in 0.18- m CMOS

S Park, GH Lee, SH Cho - IEEE Journal of Solid-State Circuits, 2019 - ieeexplore.ieee.org
This paper presents a sensor front end for air pressure sensor, relative humidity (RH)
sensor, and accelerometer in a standard CMOS process, equipped with a wide input range …

A 33fJ/Step SAR capacitance-to-digital converter using a chain of inverter-based amplifiers

H Omran, A Alhoshany, H Alahmadi… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
A 12-bit energy-efficient capacitive sensor interface circuit that fully relies on capacitance-
domain successive approximation (SAR) technique is presented. Analysis shows that for …

An Energy-Efficient Hybrid SAR-VCO Capacitance-to-Digital Converter in 40-nm CMOS

A Sanyal, N Sun - IEEE Journal of Solid-State Circuits, 2017 - ieeexplore.ieee.org
This paper presents a highly digital, 0-1 MASH capacitance-to-digital converter (CDC). The
CDC works by sampling a reference voltage on the sensing capacitor and then quantizing …

A 0.033-mm2 21.5-aF to 114.9-aF Resolution Continuous-Time Δ Σ Capacitance-to-Digital Converter Achieving Parasitic Capacitance Immunity Up to 480 pF

H Lee, C Lee, I Lee, Y Chae - IEEE Journal of Solid-State …, 2022 - ieeexplore.ieee.org
This article presents a continuous-time (CT) delta–sigma () capacitance-to-digital converter
(CDC) intended for use in applications with high capacitance resolution (tens of aF), and a …

Energy-efficient CMOS humidity sensors using adaptive range-shift zoom CDC and power-aware floating inverter amplifier array

H Li, Z Tan, Y Bao, H Xiao, H Zhang… - IEEE Journal of Solid …, 2021 - ieeexplore.ieee.org
This article presents an adaptive zoom-capacitance-to-digital converter (CDC)-based CMOS
humidity sensor. The humidity sensor is realized by means of two differential capacitors …

A capacitance-to-time converter-based electronic interface for differential capacitive sensors

A De Marcellis, C Reig, MD Cubells-Beltrán - Electronics, 2019 - mdpi.com
In this paper we present an oscillating conditioning circuit, operating a capacitance-to-time
conversion, which is suitable for the readout of differential capacitive sensors. The simple …

A precision capacitance-to-digital converter with 16.7-bit ENOB and 7.5-ppm/° C thermal drift

R Yang, MAP Pertijs, S Nihtianov - IEEE Journal of Solid-State …, 2017 - ieeexplore.ieee.org
This paper presents a high-precision capacitanceto-digital converter (CDC) for displacement
measurement in advanced industrial applications, based on a charge-balancing third-order …

Circuit and system designs of ultra-low power sensor nodes with illustration in a miniaturized GNSS logger for position tracking: Part I—Analog circuit techniques

T Jang, G Kim, B Kempke, MB Henry… - … on Circuits and …, 2017 - ieeexplore.ieee.org
This paper, split into Parts I and II, reviews recent innovations in circuit design that have
accelerated the miniaturization of sensor nodes. Design techniques for key building blocks …