Data Sheet
©2006 Fairchild Semiconductor Corporation 6 www.fairchildsemi.com
FSA66 Low-Voltage UHS Single SPST Normally Open Analog Switch
FSA66 Rev. 1.0.1
AC Loading and Waveforms
Figure 1. AC Test Circuit
Figure 2. AC Waveforms
Figure 3. Charge Injection Test
Switch
Input
Enable
Input
Switch
Output
VI
RU
RDCL
OE
AB
Input driven by 50Ω source terminated in 50Ω.
C
L
includes load and stray capacitance.
Input PRR = 1.0MHz; t
w
= 500ns.
Switch
Input
Enable
Input
Output
Output
V
CC
90% 90%
90% 90%
50% 50%
50% 50%
50%
50%
50%50%
10% 10%
10% 10%
GND
GND
V
CC
V
TRI
V
TRI
V
OL
+0.3V
V
OL
–0.3V
V
OH
V
OH
t
PLH
t
PHL
t
PZH
t
r
= 2.5 ns
t
r
= 2.5 ns
t
f
= 2.5 ns
t
f
= 2.5 ns
t
PZL
t
PLZ
t
PHZ
t
W
V
OL
V
OL
Output
Logic
Input
Logic
Input
V
GEN
V
OUT
OFF OFFON
R
GEN
R
L
1MΩ
0.1nF
C
L
V
OUT
ΔV
OUT
Q=(ΔV
OUT
)(C
L
)
B
N
SE1
A
