Title :
Programmable analog hardware: a case study
Author :
Faura, Julio ; Lacadena, Ignacio ; Torralba, Antonio ; Insenser, Josep M.
Author_Institution :
Semicond. Investigacion y Diseno SA, Madrid, Spain
Abstract :
We present in this paper the design and implementation aspects of the analog part of a microprocessor-based mixed-signal programmable array including a FPGA (Field Programmable Gate Array), a FPAA (Field Programmable Analog Array) and a microcontroller. Fully balanced differential amplification stages are used to provide a good immunity to the noise coming from the configurable logic blocks. Extra programmable features are introduced to compensate for layout mismatches and ensure acceptable offset and CMRR. Programmable data conversion structures with different possible combinations of resolution, number of channels and conversion speed are implemented and used for custom functions, internal monitoring and testing
Keywords :
CMOS integrated circuits; analogue processing circuits; arrays; data acquisition; differential amplifiers; microcontrollers; mixed analogue-digital integrated circuits; programmable circuits; CMOS ASIC; FPAA; FPGA; conversion speed; custom functions; field programmable analog array; field programmable gate array; fully balanced differential amplification stages; internal monitoring; microcontroller; microprocessor-based mixed-signal programmable array; programmable analog hardware; programmable data conversion structures; testing; Computer aided software engineering; Data acquisition; Data conversion; Field programmable analog arrays; Field programmable gate arrays; Hardware; Microcontrollers; Microprocessors; Programmable logic arrays; Testing;
Conference_Titel :
Electronics, Circuits and Systems, 1998 IEEE International Conference on
Conference_Location :
Lisboa
Print_ISBN :
0-7803-5008-1
DOI :
10.1109/ICECS.1998.813325
