參數(shù)資料
型號(hào): LF451
廠商: National Semiconductor Corporation
英文描述: LF451 Wide-Bandwidth JFET-Input Operational Amplifier
中文描述: LF451寬帶寬JFET輸入運(yùn)算放大器
文件頁數(shù): 5/8頁
文件大小: 207K
代理商: LF451
Pulse Response
Small Signal Inverting
TL/H/9660–6
Small Signal Non-Inverting
TL/H/9660–7
Large Signal Inverting
TL/H/9660–8
Large Signal Non-Inverting
TL/H/9660–9
Current Limit (R
L
e
100
X
)
TL/H/9660–10
Application Hints
The LF451CM is an op amp with an internally trimmed input
offset voltage and JFET input devices (BI-FET II). These
JFETs have large reverse breakdown voltages from gate to
source and drain eliminating the need for clamps across the
inputs. Therefore, large differential input voltages can easily
be accommodated without a large increase in input current.
The maximum differential input voltage is independent of
the supply voltages. However, neither of the input voltages
should be allowed to exceed the negative supply as this will
cause large currents to flow which can result in a destroyed
unit.
Exceeding the negative common-mode limit with the non-in-
verting input, or with both inputs, will force the output to a
high state, potentially causing a reversal of phase to the
output.
In neither case does a latch occur since raising the input
back within the common-mode range again puts the input
stage and thus the amplifier in a normal operating mode.
5
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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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