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參數資料
| 型號： | LM6181AMN |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 100 mA, 100 MHz Current Feedback Amplifier |
| 中文描述： | VIDEO AMPLIFIER, PDIP8 |
| 封裝： | PLASTIC, DIP-8 |
| 文件頁數： | 18/23頁 |
| 文件大小： | 1848K |
| 代理商： | LM6181AMN |
Typical Applications
(Continued)
CAPACITIVE FEEDBACK
For voltage feedback amplifiers it is quite common to place a
small lead compensation capacitor in parallel with feedback
resistance, R
. This compensation serves to reduce the am-
plifier’s peaking in the frequency domain which equivalently
tames the transient response. To limit the bandwidth of cur-
rent feedback amplifiers, do not use a capacitor across R
f
.
The dynamic impedance of capacitors in the feedback loop
reduces the amplifier’s stability. Instead, reduced peaking in
the frequency response, and bandwidth limiting can be ac-
complished by adding an RC circuit, as illustrated in Figure
7b
Typical Performance
Characteristics
OVERDRIVE RECOVERY
When the output or input voltage range of a high speed am-
plifier is exceeded, the amplifier must recover from an over-
drive condition. The typical recovery times for open-loop,
closed-loop, and input common-mode voltage range over-
drive conditions are illustrated in Figures 9, 11, 11, 12 re-
spectively.
The open-loop circuit of Figure 8 generates an overdrive re-
sponse by allowing the
±
0.5V input to exceed the linear in-
put range of the amplifier. Typical positive and negative over-
drive recovery times shown in Figure 9 are 5 ns and 25 ns,
respectively.
DS011328-20
6a
DS011328-21
6b
FIGURE 6. Resistive Isolation of C
Provides Higher Fidelity Pulse Response. R
and R
Could Be Increased to Maintain A
= 1
and Improve Pulse Response Characteristics.
DS011328-22
7a
DS011328-23
7b
FIGURE 7. RC Limits Amplifier
Bandwidth to 50 MHz, Eliminating
Peaking in the Resulting Pulse Response
www.national.com
18
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM6181IM | 功能描述:IC AMP CURR FEEDBK 100MHZ 16SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:VIP™ II 標準包裝:1,000 系列:- 放大器類型:電壓反饋 電路數:4 輸出類型:滿擺幅 轉換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應商設備封裝:14-SOIC 包裝:帶卷 (TR) |
| LM6181IM | 制造商:Texas Instruments 功能描述:IC AMP VIDEO SMD 6181 SOIC16 |
| LM6181IM/NOPB | 制造商:Texas Instruments 功能描述:OP Amp Single Current Fdbk 制造商:OC White Company 功能描述:OP Amp Single Current Fdbk ±16V/32V 16-Pin SOIC N Rail |
| LM6181IM-8 | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LM6181IM-8/NOPB | 功能描述:運算放大器 - 運放 100Mhz Crnt FB Amp RoHS:否 制造商:STMicroelectronics 通道數量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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