參數(shù)資料
型號: LM7171AIM
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 運動控制電子
英文描述: Very High Speed, High Output Current, Voltage Feedback Amplifier
中文描述: OP-AMP, 1500 uV OFFSET-MAX, 125 MHz BAND WIDTH, PDSO8
封裝: 0.150 INCH, SOIC-8
文件頁數(shù): 12/20頁
文件大?。?/td> 615K
代理商: LM7171AIM
Typical Performance Characteristics
unless otherwise noted, T
A
= 25C (Continued)
Note 13:
The THD measurement at low frequency is limited by the test instrument.
Simplified Schematic Diagram
Application Notes
LM7171 Performance Discussion
The LM7171 is a very high speed, voltage feedback ampli-
fier. It consumes only 6.5 mA supply current while providing
a unity-gain bandwidth of 200 MHz and a slew rate of 4100V/
μs. It also has other great features such as low differential
gain and phase and high output current.
The LM7171 is a true voltage feedback amplifier. Unlike cur-
rent feedback amplifiers (CFAs) with a low inverting input im-
pedance and a high non-inverting input impedance, both in-
puts of voltage feedback amplifiers (VFAs) have high
impedance nodes. The low impedance inverting input in
CFAs and a feedback capacitor create an additional pole
that will lead to instability. As a result, CFAs cannot be used
in traditional op amp circuits such as photodiode amplifiers,
I-to-V converters and integrators where a feedback capacitor
is required.
LM7171 Circuit Operation
The class AB input stage in LM7171 is fully symmetrical and
has a similar slewing characteristic to the current feedback
amplifiers. In the LM7171 Simplified Schematic, Q1 through
Q4 form the equivalent of the current feedback input buffer,
R
E
the equivalent of the feedback resistor, and stage A buff-
Harmonic Distortion
vs Frequency
DS012385-74
Harmonic Distortion
vs Frequency
DS012385-75
Maximum Power Dissipation
vs Ambient Temperature
DS012385-20
DS012385-9
Note:
M1 and M2 are current mirrors.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LM7171AIM/NOPB 功能描述:運算放大器 - 運放 Hi-Spd Hi-Output V Feedback 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(fēng)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
LM7171AIM/NOPB 制造商:Texas Instruments 功能描述:IC, OP AMP, SINGLE, SMD
LM7171AIM/NOPB 制造商:Texas Instruments 功能描述:Operational Amplifier IC Number of Ampli
LM7171AIMX 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(fēng)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