lf442 pdf

The LF442 dual low power operational amplifiers provide
many of the same AC characteristics as the industry standard
LM1458 while greatly improving the DC characteristics
of the LM1458. The amplifiers have the same bandwidth,
slew rate, and gain (10 kW load) as the LM1458 and only
draw one tenth the supply current of the LM1458. In addition
the well matched high voltage JFET input devices of the
LF442 reduce the input bias and offset currents by a factor of
10,000 over the LM1458. A combination of careful layout design
and internal trimming guarantees very low input offset
voltage and voltage drift. The LF442 also has a very low
equivalent input noise voltage for a low power amplifier.
The LF442 is pin compatible with the LM1458 allowing an
immediate 10 times reduction in power drain in many applications.
The LF442 should be used where low power dissipation
and good electrical characteristics are the major considerations