型号LF412QML
品牌
分类通用运算放大器
描述军用级、双路、30V、4MHz、FET 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) 36
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 7
Rail-to-rail No
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 Military
Operating temperature range (°C) -55 to 125
Offset drift (typ) (V/°C) 0.000007
CMRR (typ) (dB) 100
Iout (typ) (A) 0.025
Architecture FET
Input common mode headroom (to negative supply) (typ) (V) 4
Input common mode headroom (to positive supply) (typ) (V) -4
Output swing headroom (to negative supply) (typ) (V) 3
Output swing headroom (to positive supply) (typ) (V) -3

封装 | 引脚 | 尺寸

CDIP (NAB) 8 79.9592 mm² 10.16 x 7.87
DIESALE (Y) — —
TO-CAN (LMC) 8 80.2816 mm² 8.96 x 8.96

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

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说明

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.