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参数资料
| 型号： | LMH6647MAX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 运动控制电子 |
| 英文描述： | 2.7V, 650レA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option |
| 中文描述： | OP-AMP, 4000 uV OFFSET-MAX, PDSO8 |
| 封装： | SOIC-8 |
| 文件页数： | 16/19页 |
| 文件大小： | 637K |
| 代理商： | LMH6647MAX |
Application Notes
(Continued)
Figure 6 shows the MUX output when selecting between a
1MHz sine and a 250KHz triangular waveform.
As can be seen in Figure 6 the output is well behaved and
there are no spikes or glitches due to the switching. Switch-
ing times are approximately around 500ns based on the time
when the output is considered “valid”.
Printed Circuit Board Layout, Component Values Selec-
tion, and Evaluation Boards:
Generally, a good high-frequency layout will keep power
supply and ground traces away from the inverting input and
output pins. Parasitic capacitances on these nodes to
ground will cause frequency response peaking and possible
circuit oscillations (see Application Note OA-15 for more
information).
Another
important
parameter
speed/high performance amplifiers, is the component values
selection. Choosing large valued external resistors, will ef-
fect the closed loop behavior of the stage because of the
interaction of these resistors with parasitic capacitances.
These capacitors could be inherent to the device or a
by-product of the board layout and component placement.
Either way, keeping the resistor values lower, will diminish
this interaction. On the other hand, choosing very low value
resistors could load down nodes and will contribute to higher
overall power dissipation.
National Semiconductor suggests the following evaluation
boards as a guide for high frequency layout and as an aid in
device testing and characterization:
in
working
with
high
Device
Package
Evaluation
Board PN
CLC730068
CLC730027
CLC730036
CLC730123
CLC730027
CLC730116
LMH6645MF
LMH6645MA
LMH6646MA
LMH6646MM
LMH6647MA
LMH6647MF
SOT23-5
8-Pin SOIC
8-Pin SOIC
8-Pin MSOP
8-Pin SOIC
SOT23-6
These free evaluation boards are shipped when a device
sample request is placed with National Semiconductor.
LMH6647 Evaluation:
For normal operation, tie the SD pin to V
.
20020235
FIGURE 6. 2:1 MUX Output
L
www.national.com
16
相关PDF资料 |
PDF描述 |
|---|---|
| LMH6647MF | 2.7V, 650レA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option |
| LMH6647MFX | 2.7V, 650レA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option |
| LMH6646MA | 2.7V, 650レA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option |
| LMH6646MAX | 2.7V, 650レA, 55MHz, Rail-to-Rail Input and Output Amplifiers with Shutdown Option |
| LMM456SC15 | x4 SRAM Module |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LMH6647MAX/NOPB | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| LMH6647MF | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| LMH6647MF/NOPB | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| LMH6647MFX | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| LMH6647MFX/NOPB | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
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