LF351N中文资料Wide Bandwidth JFET Input Operational Amplifier数据手册TI规格书

描述 Description

General Description
The LF351 is a low cost high speed JFET input operational amplifier with an internally trimmed input offset voltage (BI-FET IITM 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 circuit ry. 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.

特性 Features

■ Internally trimmed offset voltage 10 mV
■ Low input bias current 50 pA
■ Low input noise voltage 25 nV/0Hz
■ Low input noise current 0.01 pA/0Hz
■ Wide gain bandwidth 4 MHz
■ High slew rate 13 V/ms
■ Low supply current 1.8 mA
■ High input impedance 1012X
■ Low total harmonic distortion AVe10, k0.02%
   RLe10k, VOe20 Vp-p, BWe20 Hz–20 kHz
■ Low 1/f noise corner 50 Hz
■ Fast settling time to 0.01% 2 ms