Ring Oscillator Based Amplifier for Sensor Applications (Daniel)

הרקע לפרויקט:

Analog Amplifiers are complex circuits which require a lot of hand-tuning and are not scalable. Recently, a new type of amplifier has emerged which is much more “digital”. This is called a “Ring Ampifier” which essentially uses a 3 stage ring oscillator as an amplifier. It can be much more compact and simpler than a corresponding analog circuit. In principle, the basic elements of the amplifiers are CMOS inverters, not current sources or analog drivers. This amplifier can be much faster and lower power than conventional analog amplifiers.

מטרת הפרויקט:

In this project you will design a ring amplifier and use it in an application such as analog-to-digital conversion or voltage regulation. These are generally application which are left to analog circuits, so this amplifier will make these circuits more “digital”. The ring amplifier will be utilized in one of these applications.

תכולת הפרויקט:

You will need to learn the theory and then implement the circuit in 65nm CMOS. An application will be chosen for the ring amplifier circuit. The schematics will be prepared in Virtuoso and simulated. Layout and post-layout simulations will be conducted to verify the circuit performance. Since there are several applications here, there may be more than one project available.

קורסי קדם:

• 768330301 אלקטרוניקה לינארית - חובה
• 768332501 מעבדה למעגלים אנלוגיים – חובה
• 8330801 מעגלים אלקטרוניים ספרתיים – חובה
• 83315 מעבדה מעגלים אלקטרוניים ספרתיים – חובה
• 768361101 מעגלים משולבים אנלוגיים – חובה

דרישות נוספות:

a lot of motivation to work hard!!!

מקורות:

1. B. Hershberg, “Ring Amplifiers for Switched Capacitor Circuits”, IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 47, NO. 12, DECEMBER 2012, pp. 2928.
2. Jun-Eun Park, et. al. “A 0.4-to-1.2V 0.0057mm2 55fs-Transient-FoM Ring-Amplifier-Based Low-Dropout Regulator with Replica-Based PSR Enhancement” ISSCC 2020 Digest of Technical Papers, pp. 492-3.