A High-performance Folded Cascode Amplifier

Enhancing general performance of folded cascode amplifier by recycling current

Introduction: A major building block of analogue integrated circuits is the operational transconductance amplifier (OTA), which for many applications is the most power consuming block. Recently, the folded cascode (FC) amplifier has gained preference over the telescopic owing to the low voltage nature of present and future CMOS technologies, despite the higher power budget. In addition, the PMO...

A Self-Biased High Performance Folded Cascode CMOS Op-Amp

Cascode CMOS op-amps use a large number of external bias voltages. This results in numerous drawbacks, namely, an area and power overhead, susceptiblity of the bias lines to noise and cross-talk and high sensitivity of the bias point to process variations. In this paper we present a self-biasing technique for folded cascode CMOS op-amps that uses no additional devices and no baas voltages other...

Fuding Ge: Folded-cascode Class-AB Operational Amplifier

CMOS Fully Differential Feedforward-Regulated Folded Cascode Amplifier

A fully differential self-biased inverter-based folded cascode amplifier which uses the feedforward-regulated cascode principle is presented. A detailed small-signal analysis covering both the differential-mode and the common-mode paths of the amplifier is provided. Based on these theoretical results a design is given and transistor level simulations validate the theoretical study and also demo...

A High-Temperature Folded-Cascode Operational Transconductance Amplifier in 0.8-μm BCD-on-SOI

The rapid growth of the hybrid electric vehicles (HEVs) has been driving the demand of high temperature automotive electronics target for the engine compartment, power train, and brakes where the ambient temperature normally exceeds 150°C. An operational transconductance amplifier (OTA) is an essential building block of various analog circuits such as data converters, instrumentation systems, l...