Features
| • | Internally trimmed offset voltage: 10 mV |
| • | Low input bias current: 50 pA |
| • | Low input noise voltage: 25 nV/ |
| • | Low input noise current: 0.01 pA/ |
| • | Wide gain bandwidth: 4 MHz |
| • | High slew rate: 13 V/µs |
| • | Low supply current: 1.8 mA |
| • | High input impedance: 1012 Ohm |
| • | Low total harmonic distortion AV=10,: <0.02% RL=10k, VO=20 Vp-p, BW=20 Hz-20 kHz |
| • | Low 1/f noise corner: 50 Hz |
| • | Fast settling time to 0.01%: 2 µs |
Description The LF351 is a low cost high speed JFET input operational amplifier with an internally trimmed input offset voltage (BI-FET II™ technology). The device requires a low supply current and yet maintains a large gain bandwidth product and a fast slew rate. In addition, well matched high voltage JFET input devices provide very low input bias and offset currents. The LF351 is pin compatible with the standard LM741 and uses the same offset voltage adjustment circuitry. This feature allows designers to immediately upgrade the overall performance of existing LM741 designs.
The LF351 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, low input bias current, high input impedance, high slew rate and wide bandwidth. The device has low noise and offset voltage drift, but for applications where these requirements are critical, the LF356 is recommended. If maximum supply
current is important, however, the LF351 is the better choice.
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