Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2000.07b
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- Pages.579-582
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- 2000
Linear Bipolar OTAs Employing Multi-tanh Doublet and Exponential-law Circuits
- Matsumoto, Fujihiko (Department of Applied Physics, National Defense Academy) ;
- Yamaguchi, Isamu (Department of Applied Physics, National Defense Academy) ;
- Noguchi, Yasuaki (Department of Applied Physics, National Defense Academy)
- Published : 2000.07.01
Abstract
In this paper, new linearization technique for bipolar OTAs using exponential-law circuits is described. The core circuit of the proposed OTAs is the multi-TANH doublet. The OTAs have adaptively biasing current sources, which consists of the exponential-law circuits. Three types of the OTAs are presented. The linear input voltage ranges of the OTAs are almost the same as the multi-TANH triplet. Further, the OTAs have lower power dissipation than the multi-TANH triplet.
Keywords