TEST CIRCUITS
Setups for the ADG918 are similar.
VDD
0.1µF
VDD
RFC
RFx
VS
CTRL
GND
VOUT
RL
50Ω
VCTRL
VOUT
50%
90%
50%
10%
tON
tOFF
Figure 18. Switch Timing: tON, tOFF
VDD
0.1µF
VDD
RFC
VS
CTRL
RFx
VOUT
50%
50%
RL
50Ω
VCTRL
10%
VOUT
90% 90%
10%
GND
tRISE
Figure 19. Switch
tFALL
VDD
0.1µF
RFC
CTRL
VCTRL
VDD ADG919
RF1
50Ω
VS
RL VOUT
50Ω
RF2
50Ω
NETWORK
ANALYZER
GND
OFF ISOLATION = 20log VOUT
VS
Figure 20. Off Isolation
ADG918/ADG919
VDD
0.1µF
VDD ADG919
RFC
RF1
50Ω
VOUT
RL
50Ω
NETWORK
ANALYZER
CTRL
VCTRL
GND
RF2
50Ω
VS
VOUT
INSERTION LOSS = 20log
VS
Figure 21. Insertion Loss
VDD
0.1µF
RFC
50Ω
CTRL
VCTRL
VDD ADG919
RF1
RF2
GND
VOUT
CROSSTALK = 20log
VS
Figure 22. Crosstalk
NETWORK
ANALYZER
50Ω
VS
VOUT
RL
50Ω
VDD
0.1µF
OSCILLOSCOPE
RFC
CTRL
VCTRL
VDD ADG919
NC
RF1
GND
NC
RF2
Figure 23. Video Feedthrough
Rev. C | Page 11 of 16