参数资料
型号: LMV822MX/NOPB
厂商: National Semiconductor
文件页数: 7/38页
文件大小: 0K
描述: IC OP AMP RAIL/RAIL 8-SOIC
标准包装: 1
放大器类型: 通用
电路数: 2
输出类型: 满摆幅
转换速率: 2 V/µs
增益带宽积: 5.6MHz
电流 - 输入偏压: 100nA
电压 - 输入偏移: 3500µV
电流 - 电源: 500µA
电流 - 输出 / 通道: 45mA
电压 - 电源,单路/双路(±): 2.5 V ~ 5.5 V,±1.25 V ~ 2.75 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 标准包装
产品目录页面: 1269 (CN2011-ZH PDF)
其它名称: LMV822MXDKR
SNOS032G – AUGUST 1999 – REVISED NOVEMBER 2013
Figure 33. Unity-Gain Frequency vs Common Mode Voltage for Various Loads
UNITY GAIN PULSE RESPONSE CONSIDERATION
A pull-up resistor is well suited for increasing unity-gain, pulse response stability. For example, a 600
pull-up
resistor reduces the overshoot voltage by about 50%, when driving a 220 pF load. Figure 34 shows how to
implement the pull-up resistor for more pulse response stability.
Figure 34. Using a Pull-up Resistor at the Output for Stabilizing Capacitive Loads
Higher capacitances can be driven by decreasing the value of the pull-up resistor, but its value shouldn't be
reduced beyond the sinking capability of the part. An alternate approach is to use an isolation resistor as
illustrated in Figure 35 .
Figure 36 shows the resulting pulse response from a LMV824, while driving a 10,000 pF load through a 20
isolation resistor.
Figure 35. Using an Isolation Resistor to Drive Heavy Capacitive Loads
Copyright 1999–2013, Texas Instruments Incorporated
15
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