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參數(shù)資料
| 型號： | EL2157 |
| 廠商： | Intersil Corporation |
| 英文描述： | 125MHz Single Supply, Clamping Op Amps |
| 中文描述： | 125MHz的單電源，鉗位運算放大器 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 488K |
| 代理商： | EL2157 |
EL2150CEL2157C
125 MHz Single Supply Clamping Op Amps
Applications Information
Contd
2150 – 66
Figure 8
Multiplexing with the EL2157C
The ENABLE pin on the EL2157C allows for
multiplexing applications Figure 9 shows two
EL2157Cs with their outputs tied together driv-
ing a back terminated 75
X video load A 2 Vp-p
10 MHz sinewave is applied at one input and a
1 Vp-p 5 MHz sinewave to the other Figure 10
shows the CLOCK signal which is applied and
the resulting output waveform at VOUT Switch-
ing is complete in about 50 ns Notice the outputs
are tied directly together Decoupling resistors at
each output are not necessary In fact adding
them approximately doubles the switching time
to 100 nsec
2150 – 67
Figure 9
2150 – 68
Figure 10
Short Circuit Current Limit
The EL2150CEL2157C have internal short cir-
cuit protection circuitry that protect it in the
event of its output being shorted to either supply
rail This limit is set to around 100 mA nominally
and reduces with increasing junction tempera-
ture It is intended to handle temporary shorts If
an output is shorted indefinitely the power dissi-
pation could easily increase such that the part
will be destroyed Maximum reliability is main-
tained if the output current never exceeds
g
90 mA A heat sink may be required to keep
the junction temperature below absolute maxi-
mum when an output is shorted indefinitely
Power Dissipation
With the high output drive capability of the
EL2150CEL2157C it is possible to exceed the
150 C Absolute Maximum junction temperature
under certain load current conditions Therefore
it is important to calculate the maximum junc-
tion temperature for the application to determine
if power-supply voltages
load conditions
or
package type need to be modified for the
EL2150CEL2157C to remain in the safe operat-
ing area
16
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| EL2157CN | 制造商:ELANTEC 制造商全稱:ELANTEC 功能描述:125 MHz Single Supply, Clamping Op Amps |
| EL2157CS | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:125MHz Single Supply, Clamping Op Amps |
| EL2157CS-T13 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:125MHz Single Supply, Clamping Op Amps |
| EL2157CS-T7 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:125MHz Single Supply, Clamping Op Amps |
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