Analog & Mixed-Signal on Américo Dias

The Future of Analog IC Design with Agentic AI

Tue, 13 Oct 2026 08:05:13 +0100

The interesting part of handing two analog blocks to an AI agent was not that it sized every transistor. It was that it could hold the specification, the implementation, the verification state and the project record at the same time, change one of them, and bring the rest back into agreement without being told to.

That is a different thing from automation, and it points somewhere larger than a single block. It moves the engineer away from carrying every assumption through every representation by hand, and towards defining intent, encoding constraints, judging trade-offs and controlling a continuously verified loop.

Radio-Frequency Transmitter for Subcutaneous Biomedical Implants

Sun, 24 Jun 2018 08:30:00 +0100

About this edition

Publishing a web-edition of my master’s thesis report was a project that I kept delaying over the last years. Finally I had time to work on it. This report was delivered almost 7 years ago - at the time of writing - in June 2010.

Phase Locked Loop Simulator in SystemC-AMS

Fri, 02 Mar 2018 08:30:00 +0100

1. Introduction

When I started to learn SystemC-AMS one of the first circuits I decided to implement was a Phase Locked Loop. The reason for this is because I have had an experience simulating a 2.4GHz PLL while I was member of the Microelectronics Student’s Group, and I realized how difficult is to simulate such circuit, specially when the output and the reference frequency are several orders of magnitude apart. The simulator has to use a small time-step to accommodate the higher frequency but at the same time, the PLL will take a relatively long time to lock and reach the steady state.