A continuous-time field programmable analog array using parasitic capacitance Gm-C filters

被引：9

作者：

Henrici, Fabian ^{[1
]}

Becker, Joachim ^{[1
]}

Buhmann, Alexander ^{[1
]}

Ortmanns, Maurits ^{[1
]}

Manoli, Yiannos ^{[1
]}

机构：

[1] Univ Freiburg, IMTEK, D-79110 Freiburg, Germany

来源：

2007 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11 | 2007年

关键词：

D O I：

10.1109/ISCAS.2007.378727

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Field programmable analog filters (FPAAs) often lack the necessary bandwidth for high performance applications. This paper presents an FPAA based on G(m)-C filters, which achieves routing without the use of transmission gates. Not only can the parameters of these filters be tuned, but also their order and structure. No additional capacitor is used for integration, only the MOS parasitic capacitances. A maximum bandwidth of 164 MHz has been achieved in simulations based on a 130 nm 1.2 V CMOS process. Distortion performance is high with a HD3 of less than -70dB for a 50mV@1MHz signal. Influences of parasitic capacitances are simulated using a test chip with 49 G(m)-cells arranged in a hexagonal array.

引用

页码：2236 / 2239

页数：4

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