Analog circuits for biochip
Summary
Introduction to analog CMOS design for Remote Biosensors on Chip. Understanding and designing of active and remotely powered biosensing systems. Basic understanding of the wireless transmission of the obtained signals.
Content
Introduction to Analog design for Brain/CMOS interfaces
Principles of Electrochemical Biosensing: Target/Probe Interactions; Amperometric, Potentiometric, Capacimetric, and Impedimetric sensing
Electrochemical cell and related equivalent circuits
Basic CMOS configurations for electrochemical biosensing and related analog circuits
Wireless transmission in lossy media: issues on temperature, specific absorption rate (SAR) and efficiency. Antennas for such devices
Regulation aspects of wireless transmission close or in living matter: maximum value of the SAR and the temperature with respect to the frequency of operation and the body tissue.
Architecture of a biomedical implant and major blocks
Fundamentals of biomedical data transmission, data transmitters (active transmitters for RF communication)
Passive data transmitters (backscattering, load modulation), data receivers
Remote powering of implants (types and inductive remote powering, battery charging)
Data conditioning (spike detection, compression)
Keywords
OpAmp, CMOS, biosensors, RF communication, Remote Powering, wireless transmission
Learning Prerequisites
Required courses
Electronics I and II
Learning Outcomes
By the end of the course, the student must be able to:
- Design complete devices for remote biosensing at system level
- Design simple analog circuits for the biosensor frontend
- Design simple analog circuits for the RF data communication
- Design simple analog circuits for the remote powering operation
- Assess / Evaluate appropriate sources of information
Teaching methods
ex cathedra with supevised exercises
Assessment methods
exam
Resources
Bibliography
- Bio/CMOS interfaces and co-design (Springer, 2nd Edition, 2024) / Carrara
- Design and optimization of passive UHF RFID systems / Curty
Ressources en bibliothèque
- Bio/CMOS interfaces and co-design / Carrara
- Design and optimization of passive UHF RFID systems / Curty
Websites
- https://www.epfl.ch/labs/bci/student-projects/
- https://www.epfl.ch/labs/bci/
- https://www.epfl.ch/labs/mag/
- https://www.epfl.ch/labs/bnms/
Moodle Link
Videos
Dans les plans d'études
- Semestre: Printemps
- Forme de l'examen: Ecrit (session d'été)
- Matière examinée: Analog circuits for biochip
- Cours: 2 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel
- Semestre: Printemps
- Forme de l'examen: Ecrit (session d'été)
- Matière examinée: Analog circuits for biochip
- Cours: 2 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel
- Semestre: Printemps
- Forme de l'examen: Ecrit (session d'été)
- Matière examinée: Analog circuits for biochip
- Cours: 2 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel
- Semestre: Printemps
- Forme de l'examen: Ecrit (session d'été)
- Matière examinée: Analog circuits for biochip
- Cours: 2 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel
- Semestre: Printemps
- Forme de l'examen: Ecrit (session d'été)
- Matière examinée: Analog circuits for biochip
- Cours: 2 Heure(s) hebdo x 14 semaines
- Exercices: 1 Heure(s) hebdo x 14 semaines
- Type: optionnel