型号LF412-N
品牌
分类通用运算放大器
描述双路、44V、4MHz、高压摆率 (15V/µs)、输入接近 V+、JFET 输入运算放大器
相关操作
产品概述

参数

Number of channels 2
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 40
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 10
Rail-to-rail In to V+
GBW (typ) (MHz) 4
Slew rate (typ) (V/µs) 15
Vos (offset voltage at 25°C) (max) (mV) 3
Iq per channel (typ) (mA) 1.8
Vn at 1 kHz (typ) (nV√Hz) 25
Rating Catalog
Operating temperature range (°C) 0 to 70
Offset drift (typ) (V/°C) 0.000007
Input bias current (max) (pA) 200
CMRR (typ) (dB) 100
Iout (typ) (A) 0.025
Architecture FET
Input common mode headroom (to negative supply) (typ) (V) 3.5
Input common mode headroom (to positive supply) (typ) (V) 0.5
Output swing headroom (to negative supply) (typ) (V) 1.5
Output swing headroom (to positive supply) (typ) (V) -1.5

封装 | 引脚 | 尺寸

PDIP (P) 8 92.5083 mm² 9.81 x 9.43

特性

  • 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

说明

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.