Low-voltage low-noise gate driven quasi-floating bulk self-cascode current mirror operational transconductance amplifier
Kulbhushan Sharma, Rajnish Sharma
Abstract
A gate driven quasi-floating bulk self-cascode current mirror operational transconductance amplifier operable at ±0.9 V supply voltage with DC gain (70 dB), gain bandwidth (250 kHz), noise (2.8 µV/√Hz at 1 Hz), and power consumption (2.96 µW) simulated in 0.18 µm technology has been introduced. Results obtained are superior in comparison to gate driven self-cascode current mirror and regular current mirror OTAs, which can be utilized to improve the performance of analog-mixed signal circuits and systems.
Topics & Concepts
CascodeCurrent mirrorTransconductanceOperational transconductance amplifierOperational amplifierAmplifierElectrical engineeringElectronic circuitBandwidth (computing)PhysicsOptoelectronicsVoltageMaterials scienceTransistorCMOSComputer scienceTelecommunicationsEngineeringAnalog and Mixed-Signal Circuit DesignAdvancements in Semiconductor Devices and Circuit DesignCCD and CMOS Imaging Sensors