Jose Silva-Martinez

TL;DR: In this article, the authors proposed a solution to the present bulky external capacitor low-dropout (LDO) voltage regulators with an external capacitorless LDO architecture, where the large external capacitor used in typical LDOs is removed allowing for greater power system integration for system-on-chip (SoC) applications.

TL;DR: In this article, an updated version of a 1985 tutorial paper on active filters using operational transconductance amplifiers (OTAs) is presented, and the integrated circuit issues involved in active filters (using CMOS transconductances amplifiers) and the progress in this field in the last 15 years is addressed.

TL;DR: A recycling amplifier architecture based on the folded cascode transconductance amplifier is described, which delivers an appreciably enhanced performance over that of the conventional folded by using previously idle devices in the signal path, which results in an enhanced transc conductance, gain, and slew rate.

TL;DR: A stable low dropout (LDO) voltage regulator topology for low equivalent series resistance (ESR) capacitive loads is presented and it is demonstrated that this scheme realizes robust frequency compensation, facilitates the use of multilayer ceramic capacitors for the load of LDO regulators, and improves transient response and noise performance.

TL;DR: In this article, a multistage operational transconductance amplifier with a feedforward compensation scheme which does not use Miller capacitors is introduced, which uses the positive phase shift of left-halfplane (LHP) zeros caused by the feedforward path to cancel the negative phase shifting of poles to achieve a good phase margin.