參數(shù)資料
型號(hào)： LM101AHRQMLV
英文描述： Voltage-Feedback Operational Amplifier
中文描述： 電壓反饋運(yùn)算放大器
文件頁(yè)數(shù)： 10/17頁(yè)
文件大?。?/td> 509K
代理商： LM101AHRQMLV
Application Hints
(Note 9) (Continued)
When driving either input from a low-impedance source, a
limiting resistor should be placed in series with the input lead
to limit the peak instantaneous output current of the source
to something less than 100 mA. This is especially important
when the inputs go outside a piece of equipment where they
could accidentally be connected to high voltage sources.
Large capacitors on the input (greater than 0.1 μF) should be
treated as a low source impedance and isolated with a resis-
tor. Low impedance sources do not cause a problem unless
their output voltage exceeds the supply voltage. However,
the supplies go to zero when they are turned off, so the iso-
lation is usually needed.
The output circuitry is protected against damage from shorts
to ground. However, when the amplifier output is connected
to a test point, it should be isolated by a limiting resistor, as
test points frequently get shorted to bad places. Further,
when the amplifer drives a load external to the equipment, it
is also advisable to use some sort of limiting resistance to
preclude mishaps.
Precautions should be taken to insure that the power sup-
plies
for
the
integrated
reversed— even under transient conditions. With reverse
voltages greater than 1V, the IC will conduct excessive cur-
Typical Applications
(Note 9)
circuit
never
become
rent, fusing internal aluminum interconnects. If there is a
possibility of this happening, clamp diodes with a high peak
current rating should be installed on the supply lines. Rever-
sal of the voltage between V
+
and V
will always cause a
problem, although reversals with respect to ground may also
give difficulties in many circuits.
The minimum values given for the frequency compensation
capacitor are stable only for source resistances less than
10 k
, stray capacitances on the summing junction less than
5 pF and capacitive loads smaller than 100 pF. If any of
these conditions are not met, it becomes necessary to over-
compensate the amplifier with a larger compensation capaci-
tor. Alternately, lead capacitors can be used in the feedback
network to negate the effect of stray capacitance and large
feedback resistors or an RC network can be added to isolate
capacitive loads.
Although the LM101A is relatively unaffected by supply by-
passing, this cannot be ignored altogether. Generally it is
necessary to bypass the supplies to ground at least once on
every circuit card, and more bypass points may be required
if more than five amplifiers are used. When feed-forward
compensation is employed, however, it is advisable to by-
pass the supply leads of each amplifier with low inductance
capacitors because of the higher frequencies involved.
Standard Compensation and
Offset Balancing Circuit
DS007752-29
Fast Voltage Follower
DS007752-31
Power Bandwidth: 15 kHz
Slew Rate: 1V/μs
www.national.com
10
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LM101AJ 功能描述:運(yùn)算放大器 - 運(yùn)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(bǔ)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
LM101AJ/883 制造商:Texas Instruments 功能描述:OP Amp Single GP 制造商:Texas Instruments 功能描述:OP Amp Single GP ±22V 8-Pin CDIP Rail 制造商:Texas Instruments 功能描述:OP AMP SGL GP 22V 8CDIP - Rail/Tube
LM101AJ/883Q 制造商:Texas Instruments 功能描述:
LM101AJ-14 制造商: 功能描述: 制造商:undefined 功能描述:
LM101AJ-14/883 制造商:NSC 制造商全稱:National Semiconductor 功能描述:OPERATION AMPLIFIER
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