ADG508A/ADG509A
TEST CIRCUITS
Note: All digital input signal rise and fall times measured from 10% to 90% of 3 V. tR = tF = 20 ns.
I
DS
V
V
V
V
DD
DD
SS
V
V
V
DD
DD
SS
SS
V1
SS
V
I
(OFF)
V1
S
D
D
I
(OFF)
A
D
S
D
0.8V
A
EN
0.8V
GND
EN
V1
V
S
GND
V2
V2
R
= V1/I
ON
DS
Figure 16. ID (Off)
Figure 14. RON
Figure 15. IS (Off)
V
V
V
V
DD
DD
SS
SS
0.8V
EN
V
V
V
DD
DD
SS
SS
DA
A
A
V
ADG509A
D
DB
A
2.4V
EN
GND
V2
V1
V1
V2
I (ON)
D
GND
Figure 17. ID (On)
Figure 18. IDIFF = IDB (Off)
V
V
V
DD
DD
SS
SS
V
ADDRESS
3V
0V
DRIVE (V
)
IN
50%
A2
A1
A0
S1
V1
V
IN
50Ω
S2–S7
90%
S8
V2
ADG508A1
OUTPUT
OUTPUT
90%
D
2.4V
EN
1MΩ
GND
35pF
tTRANSITION
tTRANSITION
1
SIMILAR CONNECTION FOR ADG509A.
Figure 19. Switching Time of Multiplexer, tTRANSITION
Rev. D | Page 11 of 16
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