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參數(shù)資料
| 型號： | MAX4639ESE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | 3.5з, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers |
| 中文描述： | 4-CHANNEL, DIFFERENTIAL MULTIPLEXER, PDSO16 |
| 封裝： | 0.150 INCH, MS-012AC, SOIC-16 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 315K |
| 代理商： | MAX4639ESE |
M
3.5
, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
_______________________________________________________________________________________
9
Detailed Description
The MAX4638/MAX4639 are low-voltage, CMOS analog
muxes. The MAX4638 is an 8:1 mux that switches one
of eight inputs (NO1
–
NO8) to a common output (COM)
as determined by the 3-bit binary inputs A0, A1, and
A2. The MAX4639 is a 4:1 dual mux that switches one
of four differential inputs to a common differential out-
put as determined by the 2-bit binary inputs A0 and A1.
Both the MAX4638/MAX4639 have an EN input that can
be used to enable or disable the device. When dis-
abled, all channels are switched off. See Truth Tables.
Applications Information
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings because stresses beyond the listed rat-
ings can cause permanent damage to the devices.
Always sequence V+ on first, then V-, followed by the
logic inputs. If power-supply sequencing is not possi-
ble, add two small-signal diodes (D1, D2) in series with
the supply pins for overvoltage protection (Figure 1).
Adding diodes reduces the analog signal range to one
diode drop below V+ and one diode drop above V-, but
does not affect the devices
’
low switch resistance.
Device operation is unchanged, and the difference
between V+ and V- should not exceed 6V. These pro-
tection diodes are not recommended when using a sin-
gle supply. For single-supply operation, V- should be
connected to GND as close to the device as possible.
COM_
V-
V+
NO_
* INTERNAL PROTECTION DIODES
D2
D1
-2.5V
+2.5V
MAX4638
MAX4639
*
*
*
*
Figure 1. Overvoltage Protection Using External Blocking
Diodes
A2
X
0
0
0
0
1
1
1
1
A1
X
0
0
1
1
0
0
1
1
A0
X
0
1
0
1
0
1
0
1
EN
0
1
1
1
1
1
1
1
1
ON SWITCH
None
NO1
NO2
NO3
NO4
NO5
NO6
NO7
NO8
A1
X
0
0
1
1
A0
X
0
1
0
1
EN
0
1
1
1
1
COMA
None
NO1A
NO2A
NO3A
NO4A
COMB
None
NO1B
NO2B
NO3B
NO4B
MAX4638 (Single 8-to-1 Mux)
MAX4639 (Dual 4-to-1 Mux)
Truth Tables
Ordering Information (continued)
PART
TEMP RANGE
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
-40
°
C to +85
°
C
PIN-PACKAGE
16 QFN (4
4)
16 TSSOP
16 SO
20 QFN (4
4)
MAX4639
EGE
MAX4639EUE
MAX4639ESE
MAX4639EGP
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4639EUE | 3.5з, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers |
| MAX4638 | 3.5з, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers |
| MAX4638ESE | 3.5з, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers |
| MAX4638EUE | 3.5з, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers |
| MAX4638-MAX4639 | 3.5з, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4639ESE+ | 功能描述:多路器開關(guān) IC 8:1 2Ch Low-Voltage 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 |
| MAX4639ESE+T | 功能描述:多路器開關(guān) IC 8:1 2Ch Low-Voltage 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 |
| MAX4639ESE-T | 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 |
| MAX4639ETE | 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 |
| MAX4639ETE+ | 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 |
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