Towards a generic operational amplifier with dynamic reconfiguration capability

[摘要] Analog and analog-digital mixed signal electronics needed for sensor systemsare indispensable components which tend to drifts from the normal phase ofoperation due to the impact of manufacturing conditions and environmentalinfluences like etching, aging etc. Precise design methodology, trimming /calibration are essential to restore functionality of the system. Recentblock level granular approaches using Field Programmable Analog Array andthe more recent approaches from evolutionary electronics providingtransistor level granularity using Field Programmable Transistor Arraysoffers considerable extensions. In our work, we started on a new mediumgranular level approach called Field Programmable medium-granularMixed-signal Array (FPMA) providing basic building blocks of heterogeneousarray of active and passive devices to configure established circuitstructures which are adaptive, biologically inspired and dynamicallyre-configurable. Our design objective is to create components of clearcompatibility to that of the industrial standards having predictablebehavior along with the incorporation of existing design knowledge. Thecells can be used in as a single instance or multiple instances. Further, wewill focus on a generic dynamic reconfigurable amplifier cell with flexibletopology and dimension called Generic Operational Amplifier (GOPA). Theincentive of our work comes from recent development in the field ofmeasurement and instrumentation. The digital programming of analog devicesis carried out using range of algorithms from simple to evolutionary.Physical realization of the basic cells is carried out in 0.35 μm CMOStechnology.

[学科分类] 电子、光学、磁材料