Abstract
In this paper, a CMOS realization of the current differencing transconductance amplifier in the low voltage is presented. The proposed circuit can operate in supply rails down to /spl plusmn/0.75 V. In the input stage, flipped voltage followers are used to obtain very low input resistances and a few tens of ohms of input resistances are achieved. Then, the proposed circuit is employed in a novel allpass configuration. To verify the correctness of the realization, SPICE simulation results are also supplied.
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