Abstract
A differentiator topology realised by employing the concept of the filtering in the sinh-domain is introduced in this article. This is constructed from appropriately configured non-linear transconductor cells. The employment of MOS transistors operated in the weak inversion region offers the capability for ultra-low-voltage operation. Additional benefits are the electronic adjustment of the frequency characteristics and the inherent class-AB operation of the differentiator, originated from its sinh-domain nature. The performance of the differentiator has been evaluated and compared with that achieved by the corresponding already introduced log-domain topology.
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