LF412CNSLASHNOPB.B中文资料德州仪器数据手册PDF规格书

1 Features

1• Internally Trimmed Offset Voltage: 1 mV (Max)

• Input Offset Voltage Drift: 7 μV/°C (Typ)

• Low Input Bias Current: 50 pA

• Low Input Noise Current: 0.01 pA / √Hz

• Wide Gain Bandwidth: 3 MHz (Min)

• High Slew Rate: 10V/μs (Min)

• Low Supply Current: 1.8 mA/Amplifier

• 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

2 Applications

• High Speed Integrators

• Fast D/A Converters

• Sample and Hold Circuits

3 Description

These devices are low cost, high speed, JFET input

operational amplifiers with very low input offset voltage and input offset voltage drift. They require low

supply current yet maintain 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-N dual is

pin compatible with the LM1558, allowing designers

to immediately upgrade the overall performance of

existing designs.

These amplifiers 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.