A Rail-to-Rail Transconductance Amplifier Based on Current Generator Circuits
Objective
In this work, two current generator circuits are configured based on n-channel and p-channel cascode current mirrors to achieve a self-biasing topology.
Abstract
These brief details the utilization of two contemporary generator circuits to create a self-biasing transconductance amplifier. These current generators employ n-channel and p-channel cascode current mirrors, facilitating a broad input dynamic range. The circuit's positive feedback topology enhances transconductance, resulting in superior performance. To maintain circuit stability, constant current sources can be paralleled with the current mirror topologies, implemented through input drivers. Incorporating n-channel and p-channel input differential pairs into the current generator circuits not only achieves rail-to-rail operation but also stabilizes the amplifier. The proposed circuit underwent fabrication in the GPDK 180 in Cadence virtuoso.
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Block Diagram
Specifications
Software Requirements:
Ø Cadence virtuoso
Ø Technology files: GPDK180nm
Hardware Requirements:
Ø Microsoft® Windows XP
Ø Intel® Pentium® 4 processor or Pentium 4 equivalent with SSE support
Ø 512 MB RAM
Ø 100 MB of available disk space
Learning Outcomes
Ø Introduction to Digital electronics
Ø Importance of Transistors
o MOS Fundamentals
o NMOS/PMOS/CMOS Technologies
o How to design circuits using Transistor logic?
o Scope of transconductance amplifier in today’s world
o Applications in Real time.
Ø Cadence tool for design and simulation
Ø Solution providing for real time problems
o Project Development Skills:
§ Problem Analysis Skills
§ Problem Solving Skills
§ Logical Skills
§ Designing Skills
§ Testing Skills
§ Debugging Skills
§ Presentation skills
§ Thesis Writing Skills
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