參數(shù)資料
型號(hào): MAX328CWE-T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 9/10頁(yè)
文件大?。?/td> 0K
描述: IC MULTIPLEXER 8X1 16SOIC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 1,000
功能: 多路復(fù)用器
電路: 1 x 8:1
導(dǎo)通狀態(tài)電阻: 3.5 千歐
電壓電源: 單/雙電源
電壓 - 電源,單路/雙路(±): 10 V ~ 30 V,±5 V ~ 18 V
電流 - 電源: 4.5µA
工作溫度: 0°C ~ 70°C
安裝類(lèi)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)
MAX328/MAX329
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
8
_______________________________________________________________________________________
Applications Information
Figure 4 is a typical circuit for converting the
MAX328/MAX329 into a fault-tolerant mux. In this
application, the internal diodes limit the voltage at the
MAX328 input to ±15.7V (±15V supplies). No external
diodes need to be added with the MAX328/MAX329,
unlike conventional multiplexers requiring external
diodes.
The resistors, R, need to be 39k
or higher to limit the
power dissipation in the resistor when a 120V AC fault
occurs (i.e., power dissipation is (120-16)2/39k
or
0.28W. This is why a 1/2/W resistor is needed). The circuit
withstands an indefinite fault to a 120V AC line with no
damage to any component.
In addition to allowing fault-protection, the guaranteed
low leakage of the MAX328/MAX329 also reduces signal
errors. The circuit in Figure 4 produces an error voltage of
10pA (max leakage) x 39k
or 0.39V at room tempera-
ture and 39V at +125°C. Therefore, for 10V signals, the
MAX328/MAX329 allows 17-bit resolution (38V = 1LSB)
over the full temperature range.
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A0
A1
A2
MAX328
EN
D
S4
S3
S2
S1
1
F
-15V
R
S5
S6
S7
S8
1
F
+15V
R = 39k
1/2W
Figure 4. Fault-Tolerant Mux (indefinitely withstands 120V AC
fault voltages)
16
EN
15
A0
14
A1
13
A2
10
S5
11
V+
12
GND
9S6
2
S1
1
V-
3
S2
4
S3
5
S4
6
D
7
S8
8
S7
MAX328
LOGIC
16
EN
15
A0
14
A1
13
GND
10
S2B
11
S1B
12
V+
9
S3B
2
S1A
1
V-
3
S2A
4
S3A
5
S4A
6
DA
7
DB
8
S4B
MAX329
LOGIC
TOP VIEW
Functional Diagrams
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MAX328EPE 功能描述:多路器開(kāi)關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻(最大值):7 Ohms 開(kāi)啟時(shí)間(最大值): 關(guān)閉時(shí)間(最大值): 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX328EPE+ 功能描述:多路器開(kāi)關(guān) IC 8:1 Monolithic CMOS MUX RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻(最大值):7 Ohms 開(kāi)啟時(shí)間(最大值): 關(guān)閉時(shí)間(最大值): 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
MAX328ETE 功能描述:多路器開(kāi)關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻(最大值):7 Ohms 開(kāi)啟時(shí)間(最大值): 關(guān)閉時(shí)間(最大值): 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16
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