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参数资料
| 型号： | EL2003CM |
| 英文描述： | 100MHz Video Line Driver |
| 中文描述： | 100MHz的视频线驱动器 |
| 文件页数： | 3/17页 |
| 文件大小： | 481K |
| 代理商： | EL2003CM |
11
EL2003C, EL2033C
100MHz Video Line Driver
E
L
20
03
C
,E
L
20
33
C
impedance of the EL2003C or EL2033C is less than
10
from DC to about 10MHz, but a capacitive load of
1000pF will generate about 45° phase shift at 10MHz
and make high speed op amps unstable. Obviously more
capacitance will cause the same problem but at lower
frequencies, and slower op amps as well would become
unstable.
The easiest way to drive capacitive loads is to isolate
them from the feedback with a series resistor. Ten to
twenty ohms is usually enough but the final value
depends on the op amp used and the range of load
capacitance.
If the system requirements will not tolerate the isolation
resistor, then additional high frequency feedback from
the op amp output (the buffer input) and an isolating
resistor from the buffer output is required. This requires
that the op amp be unity gain stable.
Op Amp Booster with Capacitive Load
10
is enough isolation and speed
is determined by the isolation
resistor and capacitive load time
constant.
CL
tr
OS
10pF
17ns
10%
470pF
20ns
50%
0.001F
30ns
35%
0.005F
80ns
0
0.01F
220ns
0
0.05F
1.1s
0
0.1F
2.2s
0
Complex Feedback with the Buffer to Drive Capacitive Loads
This works with any unity gain stable OA.
Snubber Circuit (51
470 pF) is optional.
相关PDF资料 |
PDF描述 |
|---|---|
| EL2003CN | 100MHz Video Line Driver |
| EL2003C | 100MHz Video Line Driver |
| EL2004MIL | 350 MHz FET Buffer |
| EL2004 | 350 MHz FET Buffer |
| EL2004CG | 350 MHz FET Buffer |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EL2003CN | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:100MHz Video Line Driver |
| EL2003CPL | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Buffer/Voltage Follower |
| EL2003D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Buffer/Voltage Follower |
| EL2003H | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Buffer/Voltage Follower |
| EL2003H/883B | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Buffer/Voltage Follower |
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