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參數(shù)資料
| 型號： | MAX4180ESA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Single/Dual/Quad, 270MHz, 1mA, SOT23, Current-Feedback Amplifiers with Shutdown |
| 中文描述： | OP-AMP, 7000 uV OFFSET-MAX, 245 MHz BAND WIDTH, PDSO8 |
| 封裝： | SO-8 |
| 文件頁數(shù)： | 18/24頁 |
| 文件大?。?/td> | 364K |
| 代理商： | MAX4180ESA |
M
S ingle/Dual/Quad, 270MHz, 1mA, S OT 23,
Current-Feedbac k Amplifiers with S hutdown
18
______________________________________________________________________________________
The MAX4180–MAX4187 have a very low, 2nV/
√
Hz
noise voltage. The current noise at the positive input
(i
n+
) is 4pA/
√
Hz
, and the current noise at the inverting
input is 5pA/
√
Hz
.
An example of the DC error calculations, using the
MAX4180 typical data and typical operating circuit
where R
F
= R
G
= 1.2k
(R
F
||
R
G
= 600
) and
R
S
= 37.5
, gives the following:
Calculating the total output noise in a similar manner
yields:
With a 200MHz system bandwidth, this calculates to
102μV
RMS
(approximately 612μVp-p, choosing the six-
sigma value).
V ideo Line Driver
The MAX4180–MAX4187 are well suited to drive coaxi-
al transmission lines when the cable is terminated at
both ends, as shown in Figure 6. Cable frequency
response can cause variations in the signal’s flatness.
See Table 1 for optimum R
F
and R
G
values.
Driving Capac itive Loads
The MAX4180–MAX4187 are optimized for AC perfor-
mance. They are not designed to drive highly capaci-
tive loads. Reactive loads decrease phase margin and
may produce excessive ringing and oscillation. Figure
7a shows a circuit that eliminates this problem. Placing
the small (usually 5
to 22
) isolation resistor, R
S
,
before the reactive load prevents ringing and
oscillation. At higher capacitive loads, the interaction of
the load capacitance and isolation resistor controls AC
performance. Figures 7b and 7c show the MAX4180
and MAX4181 frequency response with a 47pF capaci-
e
1 1
4x10
x37.5
5x10
x255
2x10
e
4.8nV/ Hz
n(OUT)
12
2
12
2
9
2
n(OUT)
=
(
)
+
+
=
V
1x10
x37.5
2x10
x 255
1.5x10
x 1 1
V
4.1mV
OUT
6
6
3
OUT
=
+
+
=
(
)
(
)
VIDEO
IN
VIDEO
OUT
75
75
CABLE
VIDEO LINE DRIVER
75
CABLE
R
F
820
R
G
820
75
75
+5V
-5V
0.1μF
MAX4180
0.1μF
Figure 6. Video Line Driver
V
OUT
R
G
R
S
V
OUT
= -(R
F
/ R
G
) x V
IN
V
IN
R
F
R
O
R
T
MAX4180–MAX4187
Figure 4a. Inverting Gain Configuration
V
OUT
R
G
R
S
V
OUT
= [1+ (R
F
/ R
G
) V
IN
V
IN
R
F
R
O
R
T
MAX4180–MAX4187
Figure 4b. Noninverting Gain Configuration
R
G
I
B
-
I
B
+
V
OUT
R
F
R
S
MAX4180–MAX4187
Figure 5. Output Offset Voltage
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PDF描述 |
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| MAX4187EEE | Single/Dual/Quad, 270MHz, 1mA, SOT23, Current-Feedback Amplifiers with Shutdown |
| MAX4183ESD | Single/Dual/Quad, 270MHz, 1mA, SOT23, Current-Feedback Amplifiers with Shutdown |
| MAX4183EUB | Single/Dual/Quad, 270MHz, 1mA, SOT23, Current-Feedback Amplifiers with Shutdown |
| MAX4180EUT-T | Single/Dual/Quad, 270MHz, 1mA, SOT23, Current-Feedback Amplifiers with Shutdown |
| MAX4180 | Single/Dual/Quad, 270MHz, 1mA, SOT23, Current-Feedback Amplifiers with Shutdown |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4180ESA+ | 功能描述:視頻放大器 Single 270MHz 1mA Current-Feedback 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 |
| MAX4180ESA+T | 功能描述:視頻放大器 Single 270MHz 1mA Current-Feedback 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 |
| MAX4180ESA-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 |
| MAX4180EUT | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4180EUT+T | 功能描述:視頻放大器 Single 270MHz 1mA Current-Feedback 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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