1.5-V MOS translinear loops with improved dynamic range and their applications to current-mode signal processing

被引:29
作者
De la Cruz-Blas, CA [1 ]
Lopez-Martin, A [1 ]
Carlosena, A [1 ]
机构
[1] Univ Publ Navarra, Dept Elect & Elect Engn, E-31006 Pamplona, Spain
关键词
companding; current-mode circuits; MOS translinear loops; very low-voltage;
D O I
10.1109/TCSII.2003.820230
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Novel MOS translinear loop topologies for very low-voltage applications are presented. The inclusion of dc level shifting, together with a novel biasing scheme based on two MOS transistors in the triode region, allows the operation of the loops at supply voltages as low as V-GS+2V(DSat) maintaining at the same time a large dynamic range. Several current-mode translinear circuits, both static and dynamic, i.e., geometric mean, squarer/divider, multiplier and square-root-domain filters, are implemented following this approach, demonstrating on silicon the proposed techniques.
引用
收藏
页码:918 / 927
页数:10
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