Datasheet

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA2257 • Rev. 1.0.6 5
FSA2257— Low R
ON
, Low-Voltage Dual SPDT Bi-Directional Analog Switch
AC Electrical Characteristics
Typical values are at 25°C unless otherwise specified.
Symbol
Parameter
Conditions
V
CC
(V)
T
A
=+25°C
T
A
=-40°C to
+85°C
Unit
Figure
Min.
Typ.
Max.
Min.
Max.
t
ON
Turn-On
Time
B
0
or B
1
=1.5 V,
R
L
=50 , C
L
=35 pF
1.8 to 2.7
75
ns
Figure 6
2.7 to 3.6
50
60
B
0
or B
1
=3.0 V,
R
L
=50 , C
L
=35 pF
4.5 to 5.5
35
40
t
OFF
Turn-Off
Time
B
0
or B
1
=1.5 V,
R
L
=50 , C
L
=35 pF
1.8 to 2.7
20
ns
Figure 6
2.7 to 3.6
20
30
B
0
or B
1
=3.0 V,
R
L
=50 , C
L
=35 pF
4.5 to 5.5
15
20
t
BBM
Break-
Before-Make
Time
B
0
or B
1
=1.5 V,
R
L
=50 , C
L
=35 pF
2.7 to 3.6
1
ns
Figure 7
B
0
or B
1
=3.0 V,
R
L
=50 , C
L
=35 pF
4.5 to 5.5
20
1
Q
Charge
Injection
C
L
=1.0 nF, V
GEN
=0 V,
R
GEN
=0 
2.7 to 3.6
20
pC
Figure 9
4.5 to 5.5
10
OIRR
Off Isolation
f=1 MHz, R
L
=50 
2.7 to 3.6
-70
dB
Figure 8
4.5 to 5.5
-70
Xtalk
Crosstalk
f=1 MHz, R
L
=50 
2.7 to 3.6
-75
dB
Figure 8
4.5 to 5.5
-75
BW
-3 db
Bandwidth
R
L
=50 
2.7 to 3.6
200
MHz
Figure
11
4.5 to 5.5
200
THD
Total
Harmon
Distortion
R
L
=600 V
IN
=0.5 V
PP
f=20 Hz to 20 kHz
2.7 to 3.6
0.002
%
Figure
12
4.5 to 5.5
0.002
Capacitance
Symbol
Parameter
Conditions
V
CC
(V)
T
A
=+25°C
Unit
Figure
Min.
Typ.
Max.
C
IN
Control Pin Input
Capacitance
f=1 MHz
0
3.5
pF
Figure 10
C
OFF
B Port Off Capacitance
f=1 MHz
4.5
12.0
pF
Figure 10
C
ON
A Port On Capacitance
f=1 MHz
4.5
40.0
pF
Figure 10