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Abstract:
The present work addresses the design of power efficient fully self biased OTA using a design methodology based on the gm/ID transistor characteristics. This analog module was analyzed, designed and prototyped in TSMS 0.35μm CMOS technology. Experimental results are presented, in order to validate the methodology. The proposed OTA has enhanced Gain at 3db bandwidth and the UGB with lesser current consumption. The circuit does not need any DC external biasing circuit, only VDD has to be applied. Here self biasing has been introduced with lesser power consumption. The results have been taken with load variations. This circuit is used in real time high frequency applications as in RF communication.