资 源 简 介
The LF442 dual low power operaTIonal amplifiers providemany of the same AC characterisTIcs as the industry standardLM1458 while greatly improving the DC characterisTIcsof the LM1458. The amplifiers have the same bandwidth,slew rate, and gain (10 kW load) as the LM1458 and onlydraw one tenth the supply current of the LM1458. In addiTIonthe well matched high voltage JFET input devices of theLF442 reduce the input bias and offset currents by a factor of10,000 over the LM1458. A combination of careful layout designand internal trimming guarantees very low input offsetvoltage and voltage drift. The LF442 also has a very lowequivalent input noise voltage for a low power amplifier.The LF442 is pin compatible with the LM1458 allowing animmediate 10 times reduction in power drain in many applications.The LF442 should be used where low power dissipationand good electrical characteristics are the major considerations
