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| 型号： | LMH6734MQX/NOPB |
| 厂商： | National Semiconductor |
| 文件页数： | 5/21页 |
| 文件大小： | 0K |
| 描述： | IC BUFFER TRPL SELECT 16-SSOP |
| 标准包装： | 2,500 |
| 系列： | PowerWise® |
| 应用： | 电流反馈 |
| 电路数： | 3 |
| -3db带宽： | 925MHz |
| 转换速率： | 3750 V/µs |
| 电流 - 电源： | 19.5mA |
| 电流 - 输出 / 通道： | 80mA |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 12 V，±1.5 V ~ 6 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-LSSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-QSOP |
| 包装： | 带卷 (TR) |
| 配用： | LMH730275/NOPB-ND - EVAL BOARD HS TRIPLE SSOP OPAMP |
| 其它名称： | LMH6734MQX |
VOUT
+
-
- VSUPPLY
CPOS
6.8 PF
0.1 PF
6.8 PF
CNEG
0.1 PF
RIN
VIN
+ VSUPPLY
VOUT
+
-
VIN
+ VSUPPLY
CPOS
6.8 PF
0.1 PF
6.8 PF
CNEG
0.1 PF
RIN
NC
- VSUPPLY
OBSOLETE
SNOSAY0C – JUNE 2007 – REVISED APRIL 2013
Figure 36. Recommended Split Supply Non-Inverting Gain Circuit, Gain +1 V/V
Figure 37. Recommended Split Supply Inverting Gain Circuit, Gain = –1 V/V
SINGLE SUPPLY APPLICATION
The LMH6734 can also be configured for single supply applications as shown in Figure 38, Figure 39, and
Figure 40. In Figure 38, the 220
μF capacitor was chosen to satisfy low frequency input signals and to provide an
open for the internal feedback network path, thus setting the gain to +1 V/V. With an AC signal present, this 220
μF capacitor is shunted to ground and completes the feedback resistor network to set the AC coupled gain of +2
V/V. The input is AC coupled with the 22
μF capacitor and the two 4.7 k resistors to set the input DC bias
voltage. Figure 39 shows the single supply buffer configuration with the inverting input open (no-connect)
creating an open to the internal feedback network giving a gain of +1 V/V. The input voltage is AC coupled with
the 22
μF capacitor along with two 4.7 k resistors to set the input DC bias voltage. Figure 40 shows the single
supply buffer configuration for a gain of
1 V/V. In this circuit, the input signal is DC coupled into the inverting
input closing the internal feedback network and creating a gain of
1 V/V while an AC gain of +2 V/V is present
at the non-inverting input. Thus, the 6.8 k
and the 2.2 k resistors were chosen to set the input DC bias
voltage to 1/4 the supply voltage such that at high frequencies the output voltage is gained up by +2 V/V.
Copyright 2007–2013, Texas Instruments Incorporated
13
Product Folder Links: LMH6734
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LMH6738 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Very Wideband, Low Distortion Triple Op Amp |
| LMH6738MQ | 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 |
| LMH6738MQ/NOPB | 功能描述:运算放大器 - 运放 Triple Video Op-Amp 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 |
| LMH6738MQX | 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 |
| LMH6738MQX/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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