An Operational Amplifier with Recycling Folded Cascode Topology and Adaptive Biasing

An Operational Amplifier with Recycling Folded Cascode Topology and Adaptive Biaisng

This paper presents a highly adaptive operational amplifier with high gain, high bandwidth, high speed and low power consumption. By adopting the recycling folded cascode topology along with an adaptivebiasing circuit, this design achieves high performance in terms of gain-bandwidth product (GBW) and slew rate (SR). This single stage op-amp has been designed in 0.18μm technology with a power su...

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...

Fuding Ge: Folded-cascode Class-AB Operational Amplifier

An Improved Recycling Folded Cascode OTA with positive feedback

In the literature, Improved Recycling Folded Cascode (IRFC) Operational Transconductance Amplifier (OTA) is proposed for enhancing the DC gain and the Unity Gain Bandwidth (UGB) of the Recycling Folded Cascode (RFC) OTA. In this paper, an enhanced IRFC (EIRFC) OTA which uses positive feedback at the cascode node is proposed for enhancing the differential mode (DM) gain without changing the unit...

Low Power Folded Cascode Cmos Operational Amplifier with Common Mode Feedback for Pipeline Adc

This work proposed a low power and high gain folded cascode CMOS operational amplifier with a common mode feedback (CMFB) for Pipeline ADC. The proposed design is implemented in 0.13-μm Silterra CMOS technology. The folded cascode topology has been used for obtaining a high gain and low power consumption. Meanwhile, the CMFB is modified circuit to be a double detection to stabilize the output o...