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DG470

更新时间： 2024-11-06 06:53:07
品牌 Logo 应用领域
威世 - VISHAY 开关光电二极管
页数 文件大小 规格书
9页 186K
描述
High Voltage, Single and Dual Supply SPDT Analog Switch with Enable Pin

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DG469/470  
Vishay Siliconix  
High Voltage, Single and Dual Supply SPDT Analog Switch  
with Enable Pin  
DESCRIPTION  
FEATURES  
The DG469/470 are high voltage SPDT switches, with a  
typical on resistance of 3.6 Ω and typical flatness of 0.4 Ω.  
The DG469 and DG470 are identical, except the DG470  
provides an enable input. When the enable input is activated,  
both sides of the switch are in a high impedance mode (Off),  
maintaining a "Safe State" at power up. This function can  
also be used as a quick "disconnect" in the event of a fault  
condition. For audio switching, the enable pin provides a  
mute function. These are high voltage switches that are fully  
specified with dual supplies at 4.5 V and 15 V and a  
single supply of 12 V over an operating temperature range  
from - 40 °C to + 125 °C. Fast switching speeds coupled with  
high signal bandwidth makes these parts suitable for video  
switching applications. All digital inputs have 0.8 V and 2.4 V  
logic thresholds ensuring low voltage TTL/CMOS  
compatibility. Each switch conducts equally well in both  
directions when on and can handle an input signal range that  
extends to the supply voltage rails. They exhibit break-  
before-make switching action to prevent momentary shorting  
when switching between channels. The DG469 and DG470  
are offered in a MSOP 8 and SOIC 8 package.  
• Low on resistance (3.6 Ω typical)  
•
•
•
•
On resistance flatness (0.4 Ω typical)  
44 V supply maximum rating  
15 V analog signal range  
RoHS  
COMPLIANT  
Fully specified at supply voltages of 4.5 V, 12 V and 15 V  
• TTL/CMOS compatible  
• Break before make switching guaranteed  
• Total harmonic distortion 0.0145 %  
APPLICATIONS  
•
•
•
•
•
•
•
•
•
•
•
Audio and video signal switching  
Precision automatic test equipment  
Precision data acquisition  
Relay replacement  
Communications systems  
Automotive applications  
Sample and hold systems  
Power routing applications  
Telecom signal switching  
Medical equipment  
Portable and battery power systems  
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION  
DG470  
DG469  
MSOP 8 and SOIC 8  
MSOP 8 and SOIC 8  
COM  
NC  
1
2
3
4
COM  
NC  
1
2
3
4
8
7
6
5
8
7
6
5
NO  
V-  
NO  
V-  
GND  
V+  
IN  
GND  
V+  
IN  
NC  
EN  
TOP VIEW  
TOP VIEW  
TRUTH TABLE: DG469  
TRUTH TABLE: DG470  
Logic  
NC  
NO  
OFF  
ON  
ENABLE  
Logic  
NC  
ON  
NO  
OFF  
ON  
0
1
ON  
0
0
1
0
1
OFF  
OFF  
OFF  
X
OFF  
Document Number: 71470  
S-72541-Rev. C, 17-Dec-07  
www.vishay.com  
1
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