Low-voltage low-noise gate driven quasi-floating bulk self-cascode current mirror operational transconductance amplifier

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.