DG417L/DG418L/DG419L
35Ω, SPST/SPDT, +3V
Logic-Compatible Analog Switches
8 _______________________________________________________________________________________
______________________________________________________________Pin Description
PIN
NAME FUNCTION
DG417L DG418L DG419L
1 1 1 COM Analog Switch Common Terminal
2, 5 2, 5 5 N.C. No Connection. Not internally connected.
3 3 3 GND Logic Ground
4 4 4 V+ Analog Signal Positive Supply Input
6 6 6 IN Logic-Level Input
7 7 7 V- Analog Signal Negative Supply Input
8 — 2 NC Analog Switch Normally Closed Terminal
— 8 8 NO Analog Switch Normally Open Terminal
_____________________________________________________Test Circuits/Timing Diagrams
t
R
< 20ns
t
F
< 20ns
50%
0
LOGIC
INPUT
V-
V-
R
L
300Ω
GND
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
V
OUT
= V
D (
R
L
)
R
L
+ R
DS(ON
)
SWITCH
INPUT
IN
+3V
t
OFF
0
COM
SWITCH
OUTPUT
0.9 x V
OUT
0.9 x V
OUT
t
ON
V
OUT
SWITCH
OUTPUT
LOGIC
INPUT
LOGIC INPUT WAVEFORMS INVERTED FOR SWITCHES
THAT HAVE THE OPPOSITE LOGIC SENSE.
N.C.
V+
C
L
35pF
V+
V
OUT
DG417L
DG418L
NC
OR NO
t
R
< 20ns
t
F
< 20ns
50%
0
LOGIC
INPUT
V-
V-
R
L
300Ω
COM
GND
C
L
INCLUDES FIXTURE AND STRAY CAPACITANCE.
LOGIC
INPUT
NC
IN
t
TRANS
+3V
t
TRANS
V
OUT1
V+
NO
V
OUT
0.8 x V
OUT1
V
OUT2
0.8 x V
OUT2
SWITCH
OUTPUT
DG419L
V+
N.C.
C
L
35pF
Figure 1. DG417L/DG418L Switching Time
Figure 2. DG419L Transition Time
