A Wideband Input Buffer Based on Cascade Complementary Source Follower
Also Available Domains Cadence EDA
Objective
Wideband Operation – Designing an input buffer that can handle a broad frequency range with minimal signal distortion
Abstract
A highly linear input buffer is essential for high-speed, high-resolution analog-to-digital converters (ADCs) as it effectively isolates kickback noise and package inductance. This brief analyzes several key factors influencing input buffer linearity and introduces a wideband, high-linearity input buffer based on a cascaded complementary source follower (CCSF) architecture. The proposed CCSF input buffer combines a pMOS source follower (PSF) and an nMOS source follower (NSF).
To enhance bandwidth and minimize distortion, it incorporates a compensation capacitor, an assisted operational amplifier (opamp), a bootstrapped-capacitor level-shifting circuit, a current amplifier, and various optimization techniques. The design was simulated and verified using the Cadence 45nm technology software tool, affirming its effectiveness and practicality.
Keywords: Input buffer, linearization, sample and hold circuit, source follower, wideband.
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:
• Tool: Cadence virtuoso
• Technology: 45nm
Learning Outcomes
• Basics of Digital Electronics
• Logic Gates
• Op-amp
• Introduction to Cadence virtuoso
• Buffer importance
• Rea time applications
Project Development Skills:
o Problem Analysis Skills
o Problem Solving Skills
o Logical Skills
o Designing Skills
Paper Publishing
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