Agilent 1962-11 free download

File name 1962-11.pdf

HEWLETT-PACKARD JOURNAL T E C H N I C A L I N F O R M A T I O N F R O M T H E - d p - L A B O R A T O R I E S Vol. 14, No. 3-4 UBLISHED BY THE HEWLETT-PACKARD COMPANY, 1501 PAGE MILL ROAD, PALO ALTO, CALIFORNIA NOV.-DEC, 1962 A Solid -State Operational Amplifier of High Stability AMPLIFIERS play a role of great A new dc amplifier has been designed which importance in instrumentation where achieves greater reliability and accuracy than they permit observation of low-level potentials previously available in a solid state device of not only from regular electrical sources but this type. A maximum drift level of 1 micro from mechanical, chemical and biological volt per week at constant temperature and a sources as well. In analog computer work these temperature coefficient of but one-half micro amplifiers are used to sim SEE ALSO: volt per °C with a 100 kilohm summing point ulate mathematical opera Telephone impedance constitute an order of magnitude tions such as integration Test Set, p. ? improvement over previous all-solid-state dc and summing. They are also invaluable for increasing the sensitivity of amplifiers. The amplifier is designed with voltmeters and recorders, or isolating them plug-in modules that permit a wide variety of from the signal source. For all of these appli applications. It has a gain stability of ±.01% cations, though, the amplifier must have a per week, is extremely reliable, and is unaf high degree of gain stability and very low in fected by mounting position or extern