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參數(shù)資料
| 型號： | LM6172AMWGFQMLV |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | LM6172 Dual High Speed, Low Power, Low Distortion, Voltage Feedback Amplifiers; Package: CERPACK; No of Pins: 16 |
| 中文描述： | 2 CHANNEL, VIDEO AMPLIFIER, CDSO16 |
| 封裝： | CERAMIC, SOIC-16 |
| 文件頁數(shù)： | 12/21頁 |
| 文件大?。?/td> | 371K |
| 代理商： | LM6172AMWGFQMLV |
MICROCIRCUIT DATA SHEET
MNLM6172AM-X-RH REV 0A0
Features
(Typical)
- Easy to use Voltage Feedback Topology
- High Slew Rate
3000 V/uS
- Wide Unity-Gain Bandwidth
100 MHz
- Low Supply Current
2.3 mA/Amplifier
- High Output Current
50 mA/Amplifier
- Specified for +15V and +5V operation
- CONTROLLING DOCUMENT:
LM6172AMJ-QML
5962-9560401QPA
LM6172AMJ-QMLV
5962-9560401VPA
LM6172AMJFQML
5962F9560401QPA
LM6172AMJFQMLV
5962F9560401VPA
LM6172AMWG-QML
5962-9560401QXA
LM6172AMWG-QMLV
5962-9560401VXA
LM6172AMWGFQML
5962F9560401QXA
LM6172AMWGFQMLV
5962F9560401VXA
Applications
- Scanner I-to-V Converters
- ADSL/HDSL Drivers
- Multimedia Broadcast Systems
- Video Amplifiers
- NTSC, PAL and SECAM Systems
- ADC/DAC Buffers
- Pulse Amplifiers and Peak Detectors
APPLICATION NOTES:
PERFORMANCE DISCUSSION: The LM6172 is a dual high-speed, low power, voltage feedback
amplifier. It is unity-gain stable and offers outstanding performance with only 2.3 mA of
supply current per channel. The combination of 100 MHz unity-gain bandwidth, 3000V/us slew
rate, 50 mA per channel output current and other attractive features make it easy to
implement the LM6172 in various applications. Quiescent power of the LM6172 is 138 mW
operating at +15V supply and 46 mW at +5V supply.
CIRCUIT OPERATION: The class AB input stage in the LM6172 is fully symmetrical and has a
similar slewing characteristic to the current feedback amplifiers. In the LM6172
Simplified Schematic (AN00006), Q1 through Q4 form the equivalent of the current feedback
input buffer, RE the equivalent of the feedback resistor, and stage A buffers the
inverting input. The triple-buffered output stage isolates the gain stage from the load to
provide low output impedance.
SLEW RATE CHARACTERISTIC: The slew rate of LM6172 is determined by the current available
to charge and discharge an internal high impedance node capacitor. This current is the
differential input voltage divided by the total degeneration resistor RE. Therefore, the
slew rate is proportional to the input voltage level, and the higher slew rates are
achievable in the lower gain configurations.
When a very fast large signal pulse is applied to the input of an amplifier, some
overshoot or undershoot occurs. By placing an external series resistor such as 1k Ohm to
the input of LM6172, the slew rate is reduced to help lower the overshoot, which reduces
settling time.
2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM6172AMWG-QML | 制造商:National Semiconductor Corporation 功能描述:OP Amp Dual Volt Fdbk ±18V/36V 16-Pin CPAK 制造商:National Semiconductor 功能描述:OP Amp Dual Volt Fdbk ±18V/36V 16-Pin CPAK |
| LM6172IM | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)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(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LM6172IM/NOPB | 功能描述:運算放大器 - 運放 Dual High Speed,Low Pwr Amp RoHS:否 制造商:STMicroelectronics 通道數(shù)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(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| LM6172IM/NOPB | 制造商:Texas Instruments 功能描述:Operational Amplifier (Op-Amp) IC |
| LM6172IMX | 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)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(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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