DG419DY-T1-E3/BKN Siliconix / Vishay, DG419DY-T1-E3/BKN Datasheet - Page 9

• Manufacturer Part Number: DG419DY-T1-E3/BKN
• Description: Switch; SOIC8 Precision Analog CMOS
• Manufacturer: Siliconix / Vishay

Specifications of DG419DY-T1-E3/BKN

• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

TEST CIRCUITS
APPLICATIONS
Switched Signal Powers Analog Switch
The analog switch in Figure 10 derives power from its input
signal, provided the input signal amplitude exceeds 4 V and
its frequency exceeds 1 kHz.
This circuit is useful when signals have to be routed to either
of two remote loads. Only three conductors are required: one
for the signal to be switched, one for the control signal and a
common return.
Document Number: 70051
S10-1528-Rev. G, 19-Jul-10
0 V, 2.4 V
0 V, 2.4 V
C
C
DG417/418
IN
IN
+ 5 V
GND
GND
V
V
L
L
+ 15 V
- 15 V
V-
V+
D
D
S
S
Figure 10. Switched Signal Powers Remote SPDT Analog Switch
Control
Input
C
C
C
C
D
1
Figure 9. Source/Drain Capacitances
D
IN
or Equivalent
Impedance
GND
HP4192A
f = 1 MHz
f = 1 MHz
Analyzer
V+
Meter
DG419
V
V-
L
S
S
1
2
0 V, 2.4 V
0 V, 2.4 V
A positive input pulse turns on the clamping diode D
charges C
chip; operation is satisfactory because the switch requires
less than 1 µA of stand-by supply current. Loading of the
signal source is imperceptible. The DG419’s on-resistance is
a low 100  for a 5 V input signal.
C
C
R
10
C
0.01 µF
L1
1
+ 15 V
IN
IN
k
DG419
1
. The charge stored on C
GND
GND
V+
V+
D
D
S
S
2
2
2
2
R
10
DG417, DG418, DG419
NC
NC
L2
k
V
OUT
- 15 V
V-
S
S
D
D
1
1
1
1
C
C
Vishay Siliconix
1
is used to power the
or Equivalent
or Equivalent
www.vishay.com
Impedance
Impedance
HP4192A
HP4192A
f = 1 MHz
f = 1 MHz
Analyzer
Analyzer
Meter
Meter
1
and
9