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Sensor Interface Design - Circuits for Read Out IC
Rating: 2.8 out of 5(6 ratings)
309 students

Sensor Interface Design - Circuits for Read Out IC

Javed's Attofarad Capacitance Measurement Interfaces
Created byDr G S Javed
Last updated 7/2025
English

What you'll learn

  • Lab On Chip design / MEMS design
  • Sensing Platform - Integration Engineers
  • Circuit Design
  • Dielectric Measurement
  • Planning, design and execution
  • Capacitance sensing interface
  • ADC interface

Course content

8 sections27 lectures2h 35m total length
  • What is Capacitive Sensing ?1:36
  • Applications of Capacitive Sensing1:52
  • Capacitive Touch Sensing - Practical Applications2:20
  • Liquid Level Sensing3:00

Requirements

  • Curiosity to learn design
  • Design Thinking
  • User need understanding

Description

The capacitance to digital converter (CDC) are being extensively used in Biomedical diagnostics, Water and level sensing applications in Industrial sector, MEMS sensor interface and plenty of hobby projects by young engineers. The basics of capacitance sensors, types of cap sensors - Floating and Grounded and their construction is discussed. Learn about the interdigitated Capacitor platform for many Gas Sensing applications and pressure sensing applications.  In this course, you will learn about the following:

1. What is a sensor ?

2. How to design and build a capacitance sensor ?

3. Use a MEMS capacitance sensor in an application.

4. Interfacing an ADC to the sensor and reading out the values.

5. Touch sensing / Pressure Sensing


In my research, I have proposed and demonstrated a sensitivity enhancement technique and a sensitivity tunability technique using Ring Oscillators for capacitance-based measurements. I combined both these techniques and an additional temperature calibration method and integrated the capacitance sensor in a single chip to act like a Lab-on-Chip platform. I was able to measure hundreds of atto-farad using this technique and methods. The papers based on this research work have been published in flagship IEEE Circuits and Systems Society conferences -  ISCAS, MWSCAS and India's top VLSI conference - VLSID.

The fundamental points used in this talk use the material from the other 4 courses offered in this platform. Do visit and enroll in the other courses to gain benefit.

Provide your feedback/ on completing the course.

Who this course is for:

  • School students
  • College students
  • Engineers, young engineers
  • research scholars
  • MEMS Sensor designers
  • Sensor Interface design developers