Analog layout design rules
Matching transistor layouts is crucial for minimizing electrical variations, especially in analog and mixed-signal circuits like differential amplifiers. Proper design ensures symmetry, precision, and low distortion. Techniques such as aligning transistors along isotherms, matching current orientation, maintaining consistent area-to-perimeter ratios, using dummy structures, and employing centroid layouts help reduce mismatch, ...
How to design an Operational Transconductance Amplifier (OTA)?
This article explains how to design an Operational Transconductance Amplifier (OTA) in Cadence, focusing on optimizing transistor dimensions. It covers hand calculations and the gm/ID methodology for accurate transistor sizing, along with layout design techniques to enhance symmetry and compactness. The final design meets performance specifications, including gain, bandwidth, and ...
