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參數(shù)資料
| 型號： | MAX4028EUE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Triple/Quad, 2:1 Video Multiplexer-Amplifiers with Input Clamps |
| 中文描述： | TRIPLE 1-CHANNEL, VIDEO MULTIPLEXER, PDSO16 |
| 封裝： | 4.40 MM, MO-153, TSSOP-16 |
| 文件頁數(shù)： | 10/13頁 |
| 文件大小： | 317K |
| 代理商： | MAX4028EUE |
M
Although the MAX4028/MAX4029 are optimized for AC
performance and are not designed to drive highly
capacitive loads, they are capable of driving up to
15pF without oscillations. However, some peaking may
occur in the frequency domain (
Figure 4). To drive larg-
er capacitive loads or to reduce ringing, add an isola-
tion resistor between the amplifier
’
s output and the load
(Figure 5). The value of R
ISO
depends on the circuit
’
s
gain (+2V/V) and the capacitive load (Figure 6). Also
note that the isolation resistor forms a divider that
decreases the voltage delivered to the load.
Layout and Power-Supply Bypassing
The MAX4028/MAX4029 have high bandwidths and
consequently require careful board layout, including
the possible use of constant-impedance microstrip or
stripline techniques.
To realize the full AC performance of these high-speed
amplifiers, pay careful attention to power-supply
bypassing and board layout. The PC board should
have at least two layers: a signal and power layer on
one side, and a large, low-impedance ground plane on
the other side. The ground plane should be as free of
voids as possible. Whether or not a constant-imped-
ance board is used, it is best to observe the following
guidelines when designing the board:
1) Do not use wire-wrapped boards or breadboards.
2) Do not use IC sockets; they increase parasitic
capacitance and inductance.
3) Keep signal lines as short and straight as possible.
Do not make 90
°
turns; round all corners.
4) Observe high-frequency bypassing techniques to
maintain the amplifier
’
s accuracy and stability.
5) Use surface-mount components. They generally
have shorter bodies and lower parasitic reactance,
yielding better high-frequency performance than
through-hole components.
Triple/Quad, 2:1 Video
Multiplexer-Amplifiers with Input Clamps
10
______________________________________________________________________________________
SMALL-SIGNAL BANDWIDTH
vs. FREQUENCY
M
FREQUENCY (Hz)
S
100M
10M
1M
2
3
4
5
6
7
8
9
10
11
1
100k
1G
C
LOAD
= 15pF
C
LOAD
= 10pF
C
LOAD
= 5pF
Figure 4. Small-Signal Gain vs. Frequency with Capacitive
Load and No Isolation Resistor
R
ISO
R
L
C
L
R
T
75
OUT_
IN_A
IN_B
A/B
DISABLE
0.1
μ
F
75
CABLE
R
T
75
0.1
μ
F
75
CABLE
R
KEYREF
MAX4028
MAX4029
CLAMP
Figure 5. Using an Isolation Resistor (RISO) for a High-
Capacitive Load
OPTIMAL ISOLATION RESISTANCE
vs. CAPACITIVE LOAD
M
C
LOAD
(pF)
O
200
150
100
50
5
10
15
20
25
30
0
0
250
Figure 6. Optimal Isolation Resistance vs. Capacitive Load
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PDF描述 |
|---|---|
| MAX4028EWE | Triple/Quad, 2:1 Video Multiplexer-Amplifiers with Input Clamps |
| MAX4029EWP | Triple/Quad, 2:1 Video Multiplexer-Amplifiers with Input Clamps |
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| MAX4032EUT-T | 5V, 6dB Video Buffer with Sync-Tip Clamp, Output Sag Correction, and 150nA Shutdown Current |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4028EUE+ | 功能描述:視頻放大器 Triple & Quad 2:1 Video MUX-Amplifier RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
| MAX4028EUE+T | 功能描述:視頻放大器 Triple & Quad 2:1 Video MUX-Amplifier RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
| MAX4028EUE-T | 功能描述:視頻放大器 RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
| MAX4028EWE | 功能描述:視頻放大器 RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
| MAX4028EWE+ | 功能描述:視頻放大器 Triple & Quad 2:1 Video MUX-Amplifier RoHS:否 制造商:ON Semiconductor 通道數(shù)量:4 電源類型: 工作電源電壓:3.3 V, 5 V 電源電流: 最小工作溫度: 最大工作溫度: 封裝 / 箱體:TSSOP-14 封裝:Reel |
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