Cascode Cross-Coupled Stage High-Speed Dynamic Comparator in 65 nm CMOS

Project Code :TVMABE248

Objective

The primary goal seems to be creating a comparator circuit that operates at very high speeds, likely for use in high-frequency applications such as analog-to-digital converters (ADCs) or other signal processing systems.

Abstract

At the heart of fast, precise analog-to-digital converters (ADCs), essential for communication technologies, lie dynamic comparators. These comparators excel in speed when dealing with significant input voltage differences. However, their efficiency diminishes with smaller input voltages due to the pre-amplifier's limited gain, posing challenges for high-speed, high-resolution ADCs. To address this issue, a novel cascode cross-coupled dynamic comparator has been introduced. This innovation enhances the pre-amplifier's differential gain and minimizes the common-mode voltage affecting the latch, enabling quicker regeneration even at minimal input differences. This advanced comparator has been meticulously designed, tested through simulations, and benchmarked against leading-edge methods using 45 nm CMOS technology.

Keywords: —Dynamic comparator, high-speed analog-to-digital converters, cascode cross-coupled pair.

NOTE: Without the concern of our team, please don't submit to the college. This Abstract varies based on student requirements.

Block Diagram

Specifications

Software Requirements:

· Tanner tool

· Technology files: 45nm

Hardware Requirements:

· Microsoft® Windows XP

· Intel® Pentium® 4 processor or Pentium 4 equivalent with SSE support

· 512 MB RAM

· 100 MB of available disk space

Learning Outcomes

Introduction to Digital electronics
Importance of Transistors

MOS Fundamentals
NMOS/PMOS/CMOS Technologies
How to design circuits using Transistor logic?
Scope of multipliers in today’s world
Applications in Real time.

Tanner tool for design and simulation
Solution providing for real time problems

Project Development Skills:

Problem Analysis Skills
Problem Solving Skills
Logical Skills
Designing Skills
Testing Skills
Debugging Skills
Presentation skills
Thesis Writing Skills

Demo Video

https://youtu.be/kPPl_53aYn8?si=rMgtAJOmud1bFcb9

Front End Domains

Cadence EDA
Finite State Machines
Arithmetic Core
DSP Core
Communications
Nano Technology
Testing

Back End Domains

Nano Technology
Cadence EDA
Low Power VLSI
Core Memories
Transistor Logic

Tools

FPGA
H-Spice
Cadence EDA
QCA
Xilinx Vivado
Xilinx ISE
Tanner EDA
LT-Spice

Others

Matlab Interfacing

H-Spice

LT-Spice