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DG2747_09

更新时间： 2024-11-27 10:03:31
品牌 Logo 应用领域
威世 - VISHAY 开关
页数 文件大小 规格书
9页 155K
描述
0.4-ohm, Low Voltage, Dual SPST Analog Switch

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DG2747_09 数据手册

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DG2747, DG2748, DG2749  
Vishay Siliconix  
0.4-Ω, Low Voltage, Dual SPST Analog Switch  
DESCRIPTION  
FEATURES  
The DG2747, DG2748, and DG2749 are high performance,  
low on-resistance analog switches of dual SPST  
configuration.  
Built on Vishay Siliconix's sub-micro CMOS technology, the  
DG2747, DG2748, DG2749 achieve switch on-resistance of  
0.4 Ω at 2.7 V V+ and 0.3 Ω at 4.3 V V+. It provides 0.1 Ω  
flatness at 2.7 V V+, and total harmonic distortion to 0.03 %  
(frequency range 20 Hz to 20 kHz). It achieves - 72 dB  
off-isolation and - 100 dB crosstalk at 100 kHz. Its - 3 dB  
bandwidth is up to 93 MHz.  
It can switch signals with amplitudes of up to VCC to be  
transmitted in either direction.  
The select pins of the control logic can tolerate voltages  
above V+. Logic high is 1.4 V to make it compatible with  
many low voltage digital control circuits.  
•
•
•
Wide operation voltage range: 1.6 V to 4.3 V  
Low on-resistance: 0.4 Ω typ. at 2.7 V  
Low voltage logic threshold:  
RoHS  
COMPLIANT  
Vth(high) = 1.4 V at V+ = 3 V  
•
•
•
- 100 dB crosstalk at 100 kHz  
> 250 mA latch up current per JESD78  
Switch exceeds 7 kV ESD/HBM  
BENEFITS  
•
•
•
•
Ultra small miniQFN8 package of 1.4 x 1.4 x 0.55 mm  
High fidelity audio switch  
Reed relay replacement  
Low power consumption  
APPLICATIONS  
Combining wide operation voltage, low power, high speed,  
low on-resistance and small physical size, the DG2747,  
DG2748, DG2749 are ideal for portable and battery powered  
applications requiring high performance and efficient use of  
board space.  
The DG2747, DG2748, DG2749 come in a small miniQFN-8  
lead package (1.4 x 1.4 x 0.55 mm). As a committed partner  
to the community and the environment, Vishay Siliconix  
manufactures this product with the lead (Pb)-free device  
terminations and is 100 % RoHS compliant.  
•
•
•
•
•
Cellular phones  
Portable media player  
GPS  
PCMCIA cards  
Medical and test equipment  
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION  
DG2747  
miniQFN-8L  
DG2748  
miniQFN-8L  
V+  
V+  
(Top View)  
(Top View)  
8
8
IN  
1
2
3
7
6
5
IN  
IN  
1
2
3
7
6
5
IN  
1
2
1
2
Dx  
Ex  
COM  
1
COM  
COM  
2
2
COM  
1
Pin 1  
Pin 1  
NO  
NO  
2
1
Device Marking: Dx for DG2747  
x = Date/Lot Traceability Code  
NC  
NC  
2
1
Device Marking: Ex for DG2748  
x = Date/Lot Traceability Code  
4
4
GND  
GND  
Top View  
Top View  
DG2749  
miniQFN-8L  
V+  
8
(Top View)  
IN  
1
7
6
5
IN  
1
2
Fx  
COM  
2
COM  
1
2
Pin 1  
NC  
3
NC  
1
2
Device Marking: Fx for DG2749  
x = Date/Lot Traceability Code  
4
GND  
Top View  
Document Number: 69977  
S09-0396-Rev. B, 09-Mar-09  
www.vishay.com  
1
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