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Bandwidth Enhanced Telescopic OTA
Tianwang Li, Bo Ye, Jinguang Jiang and Xingcheng Han

A fully differential bandwidth enhanced telescopic operational transconductance amplifier is presented in this paper. The unit-gain bandwidth of the proposed OTA is enhanced by recycling the tail current. Both the conventional and proposed OTAs are designed in 0.18 μm CMOS process. Simulation results show that there is a 64% improvement in the unit-gain bandwidth compared to that of conventional telescopic operational transconductance amplifier.

Keywords: OTA, full differential, unit-gain bandwidth, circuit simulation, power consumption.

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