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參數(shù)資料
| 型號： | MAX354EWE+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MULTIPLEXER 8X1 16SOIC |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1,000 |
| 功能： | 多路復用器 |
| 電路： | 1 x 8:1 |
| 導通狀態(tài)電阻： | 350 歐姆 |
| 電壓電源： | 單/雙電源 |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 36 V，±4.5 V ~ 18 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC W |
| 包裝： | 帶卷 (TR) |
MAX354/MAX355
Fault-Protected Analog Multiplexers
8
_______________________________________________________________________________________
_________________________________Test Circuits/Timing Diagrams (continued)
+15V
VOUT
-15V
GND
V+
A1
V-
A0
A2
NO8
COM
MAX354
NO1
RS = 50
VIN
EN
10nF
RL
1k
OFF ISOLATION = 20log
VOUT
VIN
10nF
+15V
VOUT
-15V
GND
V+
A1
V-
A0
A2
NO8
COM
MAX354
NO2
RG = 50
VIN
EN
10nF
RL
1k
CROSSTALK = 20log
VOUT
VIN
10nF
NO1
R = 1k
+15V
-15V
GND
V+
A2
V-
A1
A0
NO8
MAX354
CHANNEL
SELECT
NO1
COM
EN
1MHz
CAPACITANCE
ANALYZER
f = 1MHz
Figure 5. Off Isolation
Figure 6. Crosstalk
Figure 7. NO/COM Capacitance
_______________Detailed Description
Fault-Protection Circuitry
Maxim’s MAX354/MAX355 are fully fault protected for
continuous input voltages up to ±40V, whether or not
the V+ and V- power supplies are present. These
devices use a “series FET” protection scheme that not
only protects the multiplexer output from overvoltage,
but also limits the input current to sub-microamp levels.
When signal voltages exceed or are within approxi-
mately 1.5V of the supply rails, on-resistance increas-
es. This greater on-resistance limits fault currents and
output voltage, protecting sensitive circuits and com-
ponents. The protected output clamps at approximately
1.5V below the supply rails and maintains the correct
polarity. There are no glitches or polarity reversals
going into or coming out of a fault condition.
Figures 8 and 9 show how the series FET circuit protects
against overvoltage conditions. When power is off, the
gates of all three FETs are at ground. With a -25V input,
N-channel FET Q1 is turned on by the +25V gate-to-
source voltage. The P-channel device (Q2), however,
has +25V VGS and is turned off, thereby preventing the
input signal from reaching the output. If the input volt-
age is +25V, Q1 has a negative VGS, which turns it off.
Similarly, only sub-microamp leakage currents can flow
from the output back to the input, since any voltage will
turn off either Q1 or Q2.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| MAX354MJE | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX3550CEVKIT | 制造商:Maxim Integrated Products 功能描述:#EMPTY - Bulk |
| MAX3550CGM | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX3550EVKIT | 制造商:Maxim Integrated Products 功能描述:HI-IF, SINGLE-CHIP, BROADBAND TV TUNERS - Bulk |
| MAX3551CEVKIT | 制造商:Maxim Integrated Products 功能描述:HI-IF, SINGLE-CHIP, BROADBAND TV TUNERS - Bulk |
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