參數(shù)資料
型號(hào): MAX4634
廠商: Maxim Integrated Products, Inc.
英文描述: Fast, Low-Voltage, 4з, 4-Channel CMOS Analog Multiplexer
中文描述: 快速、低電壓、4Ω、4通道CMOS模擬多路復(fù)用器
文件頁數(shù): 7/11頁
文件大小: 231K
代理商: MAX4634
M
Fast, Low-Voltage, 4
,
4-Channel CMOS Analog Multiplexer
_______________________________________________________________________________________
7
Detailed Description
The MAX4634 is a low-on-resistance, low-voltage ana-
log multiplexer that operates from a +1.8V to +5.5V sin-
gle supply. CMOS switch construction allows pro-
cessing of analog signals that are within the supply volt-
age range (GND to V+).
To disable all switch channels, drive EN low. All four inputs
and COM become high impedance during this state. If the
disable feature is not needed, connect EN to V+.
Applications Information
Power-Supply Sequencing and
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply V+ before applying
analog signals or logic inputs, especially if the analog or
logic signals are not current limited. If this sequencing is
not possible, and if the analog or logic inputs are not
current limited to < 20mA, add a small-signal diode
(D1) as shown in Figure 1. If the analog signal can dip
below GND, add D2. Adding protection diodes
reduces the analog signal range to a diode drop (about
0.7V) below V+ for D1 or to a diode drop above ground for
D2. The addition of diodes does not affect leakage. On-
resistance increases by a small amount at low supply volt-
ages. Maximum supply voltage (V+) must not exceed 6V.
Protection diodes D1 and D2 also protect against some
overvoltage situations. A fault voltage up to the
absolute maximum rating at an analog signal input
does not damage the device, even if the supply voltage
is below the signal voltage.
COM
V+
NO
* INTERNAL PROTECTION DIODES
D1
GND
+5V
MAX4634
*
*
*
*
D2
Figure 1. Overvoltage Protection Using External Blocking Diodes
Pin Description
PIN
μMAX/
THIN QFN
NAME
FUNCTION
1
2
3
4
5
6
7
8
9
10
A0
NO1
GND
NO3
EN
V+
NO4
COM
NO2
A1
Address Input
Normally Open Switch 1
Ground
Normally Open Switch 3
Enable Logic Input
Positive Supply Voltage
Normally Open Switch 4
Analog Switch Common Terminal
Normally Open Switch 2
Address Input
相關(guān)PDF資料
PDF描述
MAX4634ETB Fast, Low-Voltage, 4з, 4-Channel CMOS Analog Multiplexer
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX4634ETB 制造商:Maxim Integrated Products 功能描述:FAST, LOW-VOLTAGE, 4 OHM, 4-CHANNEL CMOS ANALOG MULTIPLEXER - Rail/Tube
MAX4634ETB+ 制造商:Maxim Integrated Products 功能描述:ANLG MUX SGL 4:1 5.5V 10TQFN - Rail/Tube
MAX4634ETB+T 功能描述:多路器開關(guān) IC 4Ohm 4Ch CMOS Analog MUX 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(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
MAX4634ETBT 制造商:Maxim Integrated Products 功能描述:
MAX4634ETB-T 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: