The LF442CN/NOPB is a dual low power JFET-input Operational Amplifier provide many of the same AC characteristics as the industry standard LM1458 while greatly improving the DC characteristics of the LM1458. The amplifier have the same bandwidth, slew rate and gain (10kR 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 10000 over the LM1458. A combination of careful layout design and internal trimming ensures 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.
● 50pA Maximum low input bias current
● 1mV Maximum low input offset voltage
● 7µV/°C Typical low input offset voltage drift
● 35nV/√Hz Low noise voltage for low power
● 0.01pA/√Hz Low input noise current
● 10¹²R Typical high input impedance
● 7µV/°C Typical offset drift
● 95dB Typical CMRR
● Green product and no Sb/Br
