NC7SB3157, FSA3157 Low Voltage SPDT Analog Switch or 2:1 Multiplexer/Demultiplexer Bus Switch
R
GEN
V
GE
B
N
S
A
V
OUT
R
L
1MΩ
C
L
100pF
Logic
Input
V
OUT
OFF
ON
OFF
∆V
OUT
Logic
Input
Q = (∆V
OUT
)(C
L
)
Figure 10. Charge Injection Test
10nF
Signal
Generator
0dBm
10nF
50Ω
A
V
CC
S
Logic Input
0V or V
IH
B
0
V
CC
B
1
S
GND
50Ω
A
50Ω
Analyzer
50Ω
B
N
GND
Analyzer
Figure 11. Off Isolation
Figure 12. Crosstalk
10nF
Capacitance
Meter
f = 1MHz
10nF
A
Capacitance
Meter
f = 1MHz
B
N
V
CC
S
GND
Logic Input
0V or V
CC
A
V
CC
S
Logic Input
0V or V
CC
B
N
GND
Figure 13. Channel Off Capacitance
Figure 14. Channel On Capacitance
10nF
Signal
Generator
0dBm
Logic Input
0V or V
CC
B
N
S
V
CC
A
50Ω
GND
Figure 15. Bandwidth
8
www.fairchildsemi.com
NC7SB3157, FSA3157 Rev. 1.0.1