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| 型号： | MAX4029EUP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | IC VIDEO MUX-AMP 20-TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 应用： | 2:1 多路复用器-放大器 |
| 电路数： | 4 |
| -3db带宽： | 210MHz |
| 转换速率： | 300 V/µs |
| 电流 - 电源： | 38mA |
| 电流 - 输出 / 通道： | 30mA |
| 电压 - 电源，单路/双路(±)： | 4.5 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 标准包装 |
| 产品目录页面： | 1423 (CN2011-ZH PDF) |
| 其它名称： | MAX4029EUP+TDKR |
MAX4028/MAX4029
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 RISO 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
MAX4028
fig04
FREQUENCY (Hz)
SMALL-SIGNAL
BANDWIDTH
(dB)
100M
10M
1M
2
3
4
5
6
7
8
9
10
11
1
100k
1G
CLOAD = 15pF
CLOAD = 10pF
CLOAD = 5pF
Figure 4. Small-Signal Gain vs. Frequency with Capacitive
Load and No Isolation Resistor
RISO
RL
CL
RT
75
OUT_
IN_A
IN_B
A/B
DISABLE
0.1
F
75
CABLE
RT
75
0.1
F
75
CABLE
RKEYREF
MAX4028
MAX4029
CLAMP
Figure 5. Using an Isolation Resistor (RISO) for a High-
Capacitive Load
OPTIMAL ISOLATION RESISTANCE
vs. CAPACITIVE LOAD
MAX4028
fig06
CLOAD (pF)
OPTIMAL
ISOLATION
RESISTANCE
()
200
150
100
50
5
10
15
20
25
30
0
250
Figure 6. Optimal Isolation Resistance vs. Capacitive Load
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4029EVKIT | 制造商:Maxim Integrated Products 功能描述:TRIPLE/QUAD, 2:1 VIDEO MULTIPLEXER-AMPLIFIERS - Bulk |
| MAX4029EWP | 功能描述:视频放大器 RoHS:否 制造商:ON Semiconductor 通道数量:4 电源类型: 工作电源电压:3.3 V, 5 V 电源电流: 最小工作温度: 最大工作温度: 封装 / 箱体:TSSOP-14 封装:Reel |
| MAX4029EWP+ | 功能描述:视频放大器 Triple & Quad 2:1 Video MUX-Amplifier RoHS:否 制造商:ON Semiconductor 通道数量:4 电源类型: 工作电源电压:3.3 V, 5 V 电源电流: 最小工作温度: 最大工作温度: 封装 / 箱体:TSSOP-14 封装:Reel |
| MAX4029EWP+T | 功能描述:视频放大器 Triple & Quad 2:1 Video MUX-Amplifier RoHS:否 制造商:ON Semiconductor 通道数量:4 电源类型: 工作电源电压:3.3 V, 5 V 电源电流: 最小工作温度: 最大工作温度: 封装 / 箱体:TSSOP-14 封装:Reel |
| MAX4029EWP-T | 功能描述:视频放大器 RoHS:否 制造商:ON Semiconductor 通道数量:4 电源类型: 工作电源电压:3.3 V, 5 V 电源电流: 最小工作温度: 最大工作温度: 封装 / 箱体:TSSOP-14 封装:Reel |
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