描述 This device is a low cost, high speed, JFET input operational amplifier with very low input offset voltage and ensured input offset voltage drift. It requires low supply current yet maintains a large gain bandwidth product and fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset currents. The LF412 dual is pin compatible with the LM1558, allowing designers to immediately upgrade the overall performance of existing designs.This amplifier may be used in applications such as high speed integrators, fast D/A converters, sample and hold circuits and many other circuits requiring low input offset voltage and drift, low input bias current, high input impedance, high slew rate and wide bandwidth.特性Input Offset Voltage Drift: 20 μV/°C (Max) Low Input Bias Current: 50 pA (Typ) Low Input Noise Current: 0.01 pA/√Hz (Typ) Wide Gain Bandwidth: 2.7 MHz (Min) High Slew Rate: 8V/μs (Min) High Input Impedance: 1012Ω Low Total Harmonic Distortion <0.02% Low 1/f Noise Corner: 50 Hz Fast Settling Time to 0.01%: 2 μs All trademarks are the property of their respective owners.