參數(shù)資料
型號(hào)： MAX4159
廠商： Maxim Integrated Products, Inc.
英文描述： 350MHz 250MHz, 2-Channel Video Multiplexer Amplifiers(350MHz 250MHz,雙通道視頻多路放大器)
中文描述： 350MHz/250MHz、2通道視頻多路復(fù)用器-放大器
文件頁數(shù)： 12/16頁
文件大小： 203K
代理商： MAX4159
M
350MHz/250MHz, 2-Channel
Video Multiplexer-Amplifiers
12
______________________________________________________________________________________
Table 2. MAX4258/MAX4259 Bandwidth
and Gain vs. Gain-Setting Resistors
DC Errors and Noise
The MAX4158/MAX4159/MAX4258/MAX4259 output
offset voltage, V
OUT
(Figure 2) can be calculated with
the following equation:
V
OUT
= V
OS
x [1 + R
F
/ R
G
] + I
B
x R
S
x [1 + R
F
/ R
G
] +
I
FB
x R
F
where:
V
OS
= input offset voltage (in volts)
1 + R
F
/ R
G
= amplifier closed-loop gain (dimensionless)
I
B
= input bias current (in amps)
I
FB
= feedback input bias current (in amps)
R
G
= gain-setting resistor (in ohms)
R
F
= feedback resistor (in ohms)
R
S
= source resistor (in ohms)
The following equation represents output noise density:
where:
i
n
= input noise current density (in A/
√
Hz
)
e
n
= input noise voltage density (in V/
√
Hz
)
The MAX4158/MAX4159/MAX4258/MAX4259 have a
very low, 2nV/
√
Hz
noise voltage. The current noise at
the input (i
n
) is 2pA/
√
Hz
, and the current noise at the
feedback input (i
n(FB)
) is 22pA/
√
Hz
.
An example of DC-error calculations, using the
MAX4258 typical data and the typical operating circuit
with R
F
= R
G
= 510
(R
F
||R
G
= 255
) and R
S
= 50
,
gives:
V
OUT
= [1 x 10
-3
x (1 + 1)] + [2 x 10
-6
x 50 x (1 + 1)] +
[2 x 10
-6
x 510]
V
OUT
= 3.22mV
Calculating total output noise in a similar manner yields
the following:
With a 200MHz system bandwidth, this calculates to
168μV
RMS
(approximately 1.01mVp-p, using the six-
sigma calculation).
V ideo Line Driver
The MAX4158/MAX4159/MAX4258/MAX4259 are opti-
mized to drive coaxial transmission lines when the
cable is terminated at both ends (Figure 3). Cable fre-
quency response may cause variations in the flatness
of the signal.
enOUT = 1 + 1
enOUT = 1.9nV/ Hz
)
x
x
x
x
x
x
2
10
50
2
22
10
255
2
2
10
2
12
12
9
e OUT = 1+R /R
G
)
[
]
+
)
+
[ ]
)
x R
x R
||
x
i
i
R
e
n
S
nFB
F
G
n
2
2
2
MAX4158
MAX4159
MAX4258
MAX4259
R
G
FB
I
FB
I
B
IN_
V
OUT
OUT
R
S
R
F
5
14
195
92
90
14
-3dB BW
(MHz)
0.1dB BW
(MHz)
45
180
250
130
510
20
R
G
(
)
R
F
(
)
10
20
180
2
6
GAIN
510
(V/V)
(dB)
Figure 2. Output Offset Voltage
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4159EEE 功能描述:視頻放大器 Integrated Circuits (ICs) 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
MAX4159EEE+ 功能描述:視頻放大器 350/250MHz 2Ch 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
MAX4159EEE+T 功能描述:視頻放大器 350/250MHz 2Ch 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
MAX4159EEE-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
MAX4159ESD 功能描述:視頻放大器 Integrated Circuits (ICs) 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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