Abstract
Abstract A multifunction filter is presented in this paper whose design is done using the low-voltage operational transconductance amplifier. The filtering type includes low, high, and band pass responses. The operational transconductance amplifier is a three current mirror-based topology. The amplifier use bulk driven to operate the amplifier with minimal power dissipation. However, the low transconductance of bulk-driven approach limits the gain for which its hybrid form bulk-driven QFG MOSFET is adopted. This improved the parameters like gain and bandwidth without increasing the power dissipation. The complete design and analysis have been done using 0.18 μm at supply of ± 0.5 V.KeywordsOTAQFG MOSFETBulk-drivenGainTransconductance
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