![](http://datasheet.mmic.net.cn/Analog-Devices-Inc/ADG439FBR_datasheet_96105/ADG439FBR_9.png)
ADG438F/ADG439F
Rev. E | Page 9 of 16
TEST CIRCUITS
IDS
S
RON = V1/IDS
V1
VS
D
0
04
68-
021
Figure 17. On Resistance
S1
S2
S8
VD
IS (OFF)
VS
VDD
VSS
VDD
VSS
D
0.8V
EN
A
0046
8-
022
Figure 18. IS (Off)
S1
S2
S8
VS
ID (OFF)
VD
VDD
VSS
VDD
VSS
D
0.8V
EN
A
0
046
8-
02
3
Figure 19. ID (Off)
SD
A
VD
ID (ON)
NC
NC = NO CONNECT
004
68-
0
25
Figure 20. ID (On)
S1
S2
S8
VS
VD
VDD
VSS
VDD
VSS
D
0.8V
EN
A
00
468-
0
26
Figure 21. Input Leakage Current (with Overvoltage)
A2
0V
VDD
VSS
VS
D
0V
A1
A0
EN
GND
ADG438F*
S1
S8
A
*SIMILAR CONNECTION FOR ADG439F.
004
68-
027
Figure 22. Input Leakage Current (with Power Supplies Off)
VIN
A2
VDD
D
VSS
A1
A0
GND
ADG438F*
S1
S8
*SIMILAR CONNECTION FOR ADG439F.
VOUT
RL
50
004
68-
034
Figure 23. Off Isolation
CHANNEL-TO-CHANNEL CROSSTALK = 20 log
VOUT
GND
S1
D
S2
VOUT
NETWORK
ANALYZER
RL
50
R
50
VS
VDD
VSS
0.1F
VDD
0.1F
VSS
0
046
8-
20
0
Figure 24. Channel-to-Channel Crosstalk