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参数资料
| 型号： | HFA1112 |
| 厂商： | Intersil Corporation |
| 英文描述： | Ultra High Speed Programmable Gain Buffer Amplifier(超高速可编程增益缓冲器放大器) |
| 中文描述： | 超高速可编程增益缓冲放大器（超高速可编程增益缓冲器放大器） |
| 文件页数： | 5/14页 |
| 文件大小： | 482K |
| 代理商： | HFA1112 |
5
(as illustrated in the curves), the maximum bandwidth is
obtained without sacrificing stability. Even so, bandwidth
does decrease as you move to the right along the curve.
For example, at A
V
= +1, R
S
= 50
, C
L
= 30pF, the overall
bandwidth is limited to 300MHz, and bandwidth drops to
100MHz at A
V
= +1, R
S
= 5
, C
L
= 340pF.
Evaluation Board
The performance of the HFA1112 may be evaluated using
the HFA11XX Evaluation Board, slightly modified as follows:
1. Remove the 500
feedback resistor (R
2
), and leave the
connection open.
2. a. For A
V
= +1 evaluation, remove the 500
gain setting
resistor (R
1
), and leave pin 2 floating.
b. For A
V
= +2, replace the 500
gain setting resistor with
a 0
resistor to GND.
The layout and modified schematic of the board are shown in
Figure 2.
To order evaluation boards (part number HFA11XXEVAL),
please contact your local sales office.
R
S
)
LOAD CAPACITANCE (pF)
50
45
40
35
30
25
20
15
10
5
0
0
40
80
120
160
200
240
280
320
360
400
A
V
= +1
A
V
= +2
FIGURE 1. RECOMMENDED SERIES OUTPUT RESISTOR vs
LOAD CAPACITANCE
1
2
3
4
8
7
6
5
+5V
10
μ
F
0.1
μ
F
V
H
50
GND
GND
R
1
-5V
0.1
μ
F
10
μ
F
50
IN
OUT
V
L
∞
(A
V
= +1)
or 0
(A
V
= +2)
V
H
+IN
V
L
V+
GND
1
V-
OUT
TOP LAYOUT
BOTTOM LAYOUT
FIGURE 2. EVALUATION BOARD SCHEMATIC AND LAYOUT
HFA1112
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PDF描述 |
|---|---|
| HFA1113 | 850MHz, Low Distortion, Output Limiting, Programmable Gain, Buffer Amplifier(850MHz、低失真、输出限定可编程增益缓冲放大器) |
| HFA1115883 | High Speed, Low Power, Output Limiting Closed Loop Buffer Amplifier |
| HFA1115IP | Mini-Stripax Plus Replacement Blade; Conductor Size AWG:24-22; Features:Includes top & bottom blades, spring & wire stop; Specially formed stripping blades ensure no damage to the conductor; Easy to install RoHS Compliant: Yes |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| HFA1112 WAF | 制造商:Intersil Corporation 功能描述: |
| HFA1112/883 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Ultra High Speed Programmable Gain Buffer Amplifier |
| HFA1112_05 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:850MHz, Low Distortion Programmable Gain Buffer Amplifiers |
| HFA1112883 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Ultra High Speed Programmable Gain Buffer Amplifier |
| HFA1112A | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:850MHz, Low Distortion Programmable Gain Buffer Amplifiers |
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