PROJECT TITLE :

A Hybrid OTA Driving 15 nF Capacitive Load With 1.46 MHz GBW

ABSTRACT:

A cascade structure of six proposed signal-current enhancers is applied to a normal operational transconductance amplifier (OTA) to improve its gain-bandwidth (GBW) product, slew rate (SR), and voltage gain through significant enhancements of the tiny-signal and transient output currents from the proposed enhancers. The proposed hybrid OTA is implemented in a very normal 0.13 μm CMOS technology, with a lively chip area of 0.0027 mm2. Working under a 0.seven V supply and as proven by the measurement results, the resultant OTA when driving an output capacitor of 15 nF attained ~one hundred dB gain, a GBW of one.forty six MHz, and an SR of 0.47 V/μs, consuming solely 24 μA of current and requiring no compensation capacitor.