DG2747 Datasheet, PDF (1/8 Pages) Vishay Siliconix – 0.4-Ω, Low Voltage, Dual SPST Analog Switch

DG2747/DG2748/DG2749
Vishay Siliconix
0.4-Ω, Low Voltage, Dual SPST Analog Switch
DESCRIPTION
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
DG2747/2748/2749 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
78 MHz.
It can switch signals with amplitudes of up to V_CC 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.
Combining wide operation voltage, low power, high speed,
low on-resistance and small physical size, the DG2747/2748/
2749 are ideal for portable and battery powered applications
requiring high performance and efficient use of board space.
The DG2747/2748/2749 come in a small miniQFN-8lead
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.
FEATURES
• 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:
V_th(high) = 1.4 V at V+ = 3 V
• - 100 dB crosstalk
• > 250 mA latch up current per JESD78
• Switch exceeds 7 kV ESD/HBM
RoHS
COMPLIANT
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
• Cellular phones
• Portable media player
• GPS
• PCMCIA cards
• Medical and test equipment
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
IN₁ 1
COM_{1 2}
NO_{1 3}
DG2747
miniQFN-8L
V+
8
(Top View)
7 IN₂
Dx
6 COM_{2 Pin 1}
5 ^NO2
Device Marking: Dx for DG2747
x = Date/Lot Traceability Code
4
GND
Top View
DG2749
miniQFN-8L
V+
IN₁ 1
COM₁ 2
NC₁ 3
DG2748
miniQFN-8L
V+
8
7
6
5
4
GND
Top View
(Top View)
IN₂
Ex
COM₂
Pin 1
NC₂
Device Marking: Ex for DG2748
x = Date/Lot Traceability Code
IN₁ 1
COM₁ 2
NC₁ 3
8
4
GND
Top View
(Top View)
7 IN₂
Fx
6 COM₂
Pin 1
5 _NC2
Device Marking: Fx for DG2749
x = Date/Lot Traceability Code
Document Number: 69977
S-80899-Rev. A, 21-Apr-08
www.vishay.com
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