DG469, DG470
Vishay Siliconix
High Voltage, Single and Dual Supply SPDT Analog Switch
with Enable Pin
DESCRIPTION
FEATURES
The DG469, DG470 are high voltage SPDT switches, with a
typical on resistance of 3.6 Ω and typical flatness of 0.4 Ω.
The DG469, 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 breakbefore-make switching action to prevent momentary shorting
when switching between channels. The DG469, DG470 are
offered in a MSOP 8 and SOIC 8 package.
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Low on resistance (3.6 Ω typical)
On resistance flatness (0.4 Ω typical)
44 V supply maximum rating
RoHS
COMPLIANT
± 15 V analog signal range
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 %
Compliant to RoHS Directive 2002/95/EC
APPLICATIONS
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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
8
NC
2
GND
3
6
IN
V+
4
5
No Connect
2
7 V-
3
6 IN
V+
7 V-
NO
8 NO
GND
1
1
NC
COM
4
5 EN
Top View
Top View
TRUTH TABLE DG469
TRUTH TABLE DG470
Logic
NC
NO
ENABLE
Logic
NC
NO
0
ON
OFF
0
0
ON
OFF
1
OFF
ON
0
1
OFF
ON
1
X
OFF
OFF
Document Number: 71470
S09-1053-Rev. D, 08-Jun-09
www.vishay.com
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