论文部分内容阅读
近两、三年来,单电源运放如双极型单运放8FC7、双运放CF158、四运放CF124,Bi-MOS高阻运放F3140、CC3130,电流型四运放F3900、F3401以及CMOS四运放CC14573等已陆续定型投产.由于它们只需要一组电源即可工作,因此在各种应用领域、尤其在工业自控和便携式仪器设备中正受到越来越多的重视,应用也日渐增多.这类器件为适应单电源工作、在电路设计上有它自已的特点,因而使用时其零位输出、零位的测试与调零等问题也有其特殊之处.有些同志在使用中提出了这类器件“无法调零”或“调不到零”等问题,这可能与对这类器件的特点还不太熟悉有关.
Nearly two or three years, a single power supply op amp such as bipolar single op amp 8FC7, dual op amp CF158, quad op amp CF124, Bi-MOS high-impedance op amp F3140, CC3130, current quad op amp F3900, F3401 and CMOS Four operational amplifiers such as CC14573 have been put into operation one after another since they only need a power supply to work, so in various applications, especially in industrial automation and portable equipment are being more and more attention, applications are also increasing. Such devices to adapt to a single power supply, the circuit design has its own characteristics, so when using its zero output, zero test and zero and other issues also have their own specialties. Some comrades put forward in use Class devices such as “Unable to zero” or “Unable to zero” may not be familiar with the features of these devices.