DG469 Datasheet, PDF (1/9 Pages) Vishay Siliconix – High Voltage, Single and Dual Supply SPDT Analog Switch with Enable Pin

DG469/470
Vishay Siliconix
High Voltage, Single and Dual Supply SPDT Analog Switch
with Enable Pin
DESCRIPTION
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.
FEATURES
• 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
DG469
MSOP 8 and SOIC 8
COM 1
NC 2
GND 3
V+ 4
TOP VIEW
8 NO
7 V-
6 IN
5 NC
TRUTH TABLE: DG469
Logic
NC
NO
0
ON
OFF
1
OFF
ON
DG470
MSOP 8 and SOIC 8
COM 1
NC 2
GND 3
V+ 4
TOP VIEW
8 NO
7 V-
6 IN
5 EN
TRUTH TABLE: DG470
ENABLE
Logic
NC
NO
0
0
ON
OFF
0
1
OFF
ON
1
X
OFF
OFF
Document Number: 71470
S-72541-Rev. C, 17-Dec-07
www.vishay.com
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