型号LMC6462
品牌
分类精密运算放大器 (Vos<1mV)
描述双路微功耗、轨到轨输入和输出 CMOS 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) 15.5
Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3
Vos (offset voltage at 25°C) (max) (mV) 0.5
GBW (typ) (MHz) 0.05
Slew rate (typ) (V/µs) 0.028
Rail-to-rail In, Out
Offset drift (typ) (µV/°C) 2
Iq per channel (typ) (mA) 0.02
Vn at 1 kHz (typ) (nV√Hz) 80
CMRR (typ) (dB) 85
Rating Catalog
Operating temperature range (°C) -40 to 85
Input bias current (max) (pA) 1.5
Iout (typ) (A) 0.027
Architecture CMOS
Input common mode headroom (to negative supply) (typ) (V) -0.2
Input common mode headroom (to positive supply) (typ) (V) 0.3
Output swing headroom (to negative supply) (typ) (V) 0.005
Output swing headroom (to positive supply) (typ) (V) -0.005

封装 | 引脚 | 尺寸

PDIP (P) 8 92.5083 mm² 9.81 x 9.43
SOIC (D) 8 29.4 mm² 4.9 x 6

特性

  • (Typical Unless Otherwise Noted)
  • Ultra Low Supply Current  20 μA/Amplifier
  • Ensured Characteristics at 3V and 5V
  • Rail-to-Rail Input Common-Mode Voltage Range
  • Rail-to-Rail Output Swing
    • (within 10 mV of rail, VS = 5V and RL = 25 kΩ)
  • Low Input Current 150 fA
  • Low Input Offset Voltage 0.25 mV

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说明

The LMC6462/4 is a micropower version of the popular LMC6482/4, combining Rail-to-Rail Input and Output Range with very low power consumption.

The LMC6462/4 provides an input common-mode voltage range that exceeds both rails. The rail-to-rail output swing of the amplifier, ensured for loads down to 25 kΩ, assures maximum dynamic signal range. This rail-to-rail performance of the amplifier, combined with its high voltage gain makes it unique among rail-to-rail amplifiers. The LMC6462/4 is an excellent upgrade for circuits using limited common-mode range amplifiers.

The LMC6462/4, with ensured specifications at 3V and 5V, is especially well-suited for low voltage applications. A quiescent power consumption of 60 μW per amplifier (at VS = 3V) can extend the useful life of battery operated systems. The amplifier's 150 fA input current, low offset voltage of 0.25 mV, and 85 dB CMRR maintain accuracy in battery-powered systems.