LM358

www.msksemi.com LM358 Semiconductor Compiance GENERAL DESCRIPTION LM358 是一款双路低功耗的差分式运算放大器。具有单、双电源供电的特点。具有较高的开环增益、 内部补偿、高共模范围和良好的温度稳定性，以及具有输出短路保护的特点。可应用于传感器的放大电路、 直流放大模块，音频放大电路和传统的运算放大电路中。 FEATURES ● 内部频率补偿 ● 高输入单电源电压范围：3V～36V ● 短路保护 ● 高输入双电源电压范围：±18V ● 低功耗：单路典型值 300uA ● 单位增益带宽：大于 1.2MHZ ● 封装形式：DIP8、SOP8 ● ● 音频放大器 其它应用领域 APPLICATION ● ● 传感器信号放大器 直流增益 PIN CONFIGURATION DIP8/SOP8 管脚序号 管脚定义 功能说明 1 1OUT1 运放输出端 2 1IN- 运放输入负端 3 1IN+ 运放输入正端 4 VEE 负电源端 5 2IN+ 运放输入正端 6 2IN- 运放输入负端 7 2OUT 运放输出端 8 VCC 正电源端 www.msksemi.com LM358 Semiconductor Compiance 极限参数 (2) 参数 符号 单电源供电电压 Vcc 40 V 双电源供电电压 Vs ±20 V VIDR ±32 V 输入电压 VI 0.3～40V V 输出短路时间 tsc 连续 耗散功率 PD 400 mW 工作温度 TA 0-70 ℃ 储存温度 TS -65-150 ℃ 焊接温度 TW 260,10s ℃ （1） 差分输入电压 极限值 单位 注： （1）输入端NI+相对于IN-之间的最大电压差。 （2）极限参数是指无论在任何条件下都不能超过的极限值。如果超过此极限值，将有可能造成产品劣化等物理 性损伤；同时在接近极限参数下，不能保证芯片可以正常工作。 逻辑框图 www.msksemi.com LM358 Semiconductor 直流电学特性 Compiance （TA=25℃，VCC=5V,VEE=GND 除非特别指定） 项目 符号 测试条件 最小值 典型值 最大值 单位 输入失调电压 VIO VCC=5V to MAX,VIC=VICR(min),VO=1.4V - 5 - mV 输入失调电流 IIO VO = 1.4 V - 10 50 nA 偏置电流 IBIAS VO = 1.4 V - 50 250 nA 输入共模电压 VICR VCC=5V to 36V VEE - VCC-1.5V V 输出高电压 VOH VCC=28V,RL=2k 26 - V 输出低电压 VOL VCC=28V,RL=2k - 0.85 - V 开环电压增益 AOL VCC=15V,VO=1V to 11V,RL≥2kΩ 70 100 - V/mV 共模抑制比 CMRR VCC=5V to MAX,VIC=VICR(min) 65 80 - dB 单位增益带宽 GBWP -- - 1.2 - MHZ 电源电压抑制比 PSRR ∆VVDD/∆VIO VCC=5V to MAX, f=20kHz - 90 - dB 串扰衰减抑制比 CS VO1/VO2 f=1MHz - 120 - dB VCC=15V,Iout =50uA - 13.7 13.5 V VCC=15V,Iout =1mA - 13.6 13.3 V VCC=15V,Iout =5mA - 13.4 13 V VCC=15V,Iout =50uA - 0.1 0.15 V VCC=15V,Iout =1mA - 0.75 1 V VCC=15V,Iout =5mA - 1 1.5 V VCC=5V,VEE=-5V,VO=0V - ±24 - mA VCC=5V,VO=1/2VCC, No load - 0.5 - mA VCC=36,VO=1/2VCC, No load - 0.8 - mA -18 - +18 V VO+ 电压输出幅值 VO- 输出短路电流 IOS 电源工作电流 ICC 双电源电压 VS /f=1kHz to 20kHz VCC,VEE 典型应用 １、线路图 运算放大器在反相放大器中的典型应用图 www.msksemi.com LM358 Semiconductor Compiance ２、设计要求 必须选择大于输入电压范围和输出范围的电源电压。 例如，将信号源 VIN 从±0.5 V 放大到±1.8V。将电源设置为±５V 足以适应此应用要求。 ３、设计过程 根据公式(1)计算放大倍数(增益) AV AV =-VO/VIN ------(1) AV =-VO/VIN=-1.8/0.5=-3.6 一旦确定了所需的增益 AV，就要为 RI 或 RF 电阻选择一个值。根据运放的电特性及功耗的需要， 可选择 1kΩ-100kΩ范围内的值。本例将选择 RI=10 kΩ，则 RF=36kΩ。这由方程式 2 确定。 AV =-RF/RI --------(2) RF= -AV * RI=3.6*10 = 36 kΩ ４、应用曲线图 反相放大器的输入电压 VS 输出电压 www.msksemi.com LM358 Semiconductor Compiance PACKAGE MECHANICAL DATA Symbol A A1 A2 b c D e E E1 L θ Dimensions In Millimeters Min 1.350 Max 1.750 Dimensions In Inches Min 0.053 Max 0.069 0.100 0.250 1.350 1.550 0.330 0.510 0.170 0.250 4.800 5.000 1.270（BSC） 0.004 0.010 0.053 0.061 0.013 0.020 0.007 0.010 0.189 0.197 0.050（BSC） 5.800 3.800 0.400 6.200 4.000 1.270 0.228 0.150 0.016 0.244 0.157 0.050 0° 8° 0° 8° REEL SPECIFICATION P/N PKG QTY LM358 SOP-8 2500 www.msksemi.com LM358 Semiconductor Compiance DIP 8 B、8-pin plastic SOP (225mil) www.msksemi.com LM358 Semiconductor Compiance Attention ■ Any and all MSKSEMI Semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. 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