型号LMC6484QML
品牌
分类精密运算放大器 (Vos<1mV)
描述超低偏置电流、精密 CMOS 轨到轨输入和输出运算放大器
相关操作
产品概述

参数

Number of channels 4
Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 15.5
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3
Vos (offset voltage at 25°C) (max) (mV) 0.75
GBW (typ) (MHz) 1.5
Slew rate (typ) (V/µs) 1.3
Rail-to-rail In, Out
Offset drift (typ) (µV/°C) 1
Vn at 1 kHz (typ) (nV√Hz) 37
CMRR (typ) (dB) 82
Rating Military
Operating temperature range (°C) -55 to 125
Input bias current (max) (pA) 25
Iout (typ) (A) 0.011
Architecture CMOS
Input common mode headroom (to negative supply) (typ) (V) -0.25
Input common mode headroom (to positive supply) (typ) (V) 0.25
Output swing headroom (to negative supply) (typ) (V) 0.18
Output swing headroom (to positive supply) (typ) (V) -0.2

封装 | 引脚 | 尺寸

CDIP (J) 14 130.4652 mm² 19.56 x 6.67
CFP (NAC) 14 62.9285 mm² 9.91 x 6.35

特性

  • (Typical Unless Otherwise Noted)
  • Rail-to-Rail Input Common-Mode Voltage Range (Ensured Over Temperature)
  • Rail-to-Rail Output Swing (within 20 mV of Supply Rail, 100 KΩ Load)
  • Ensured 5V and 15V Performance
  • Operates at 3V.
  • Excellent CMRR and PSRR: 82 dB
  • Ultra Low Input Current: 20 fA
  • High Voltage Gain (RL = 500 KΩ): 130 dB
  • Specified for 2 KΩ and 600Ω Loads

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说明

The LMC6484 provides a common-mode range that extends to both supply rails. This rail-to-rail performance combined with excellent accuracy, due to a high CMRR, makes it unique among rail-to-rail input amplifiers.

It is ideal for systems, such as data acquisition, that require a large input signal range. The LMC6484 is also an excellent upgrade for circuits using limited common-mode range amplifiers such as the TLC274 and TLC279.

Maximum dynamic signal range is assured in low voltage and single supply systems by the LMC6484's rail-to-rail output swing. The LMC6484's rail-to-rail output swing is ensured for loads down to 600Ω.

Ensured low voltage characteristics and low power dissipation make the LMC6484 especially well-suited for battery-operated systems.

See the LMC6482 data sheet for a Dual CMOS operational amplifier with these same features.