https://dds.las.ac.cn/service/document?appId=a1vacbnPuv9qJRzJvdNXfsesj9JbIa6e&appKey=sPBA4vANLzjnW1k5eufEcc4k7dxfNraW&ts=1763029734697&signature=373c0f0911229f5890f3bb929ea06f0d&articleTitle=Operational+Amplifier+Circuits&articleAuthor=Nelson%2C+J+C+C&publicationTitle=Operational+Amplifier+Circuits&language=&publicationType=1&publishYear=&isn=9780750694681&publisher=