NC7SB3157, FSA3157 Low Voltage SPDT Analog Switch or 2:1 Multiplexer/Demultiplexer Bus Switch
AC Electrical Characteristics
V
CC
Symbol
t
PHL
,
t
PLH
T
A
= +25°C
Min
Typ
Max
3.5
1.2
0.8
0.3
7.0
3.5
2.5
1.7
3.0
2.0
1.5
0.8
0.5
0.5
0.5
0.5
7.0
3.0
–57.0
–54.0
250
.011
23.0
13.0
6.9
5.2
12.5
7.0
5.0
3.5
T
A
= –40°C to +85°C
Min
Max
3.5
1.2
0.8
0.3
7.0
3.5
2.5
1.7
3.0
2.0
1.5
0.8
0.5
0.5
0.5
0.5
24.0
14.0
7.6
5.7
13.0
7.5
5.3
3.8
Parameter
Propagation Delay
Bus to Bus
10
Conditions
V
I
= OPEN
(V)
1.65 – 1.95
2.3 – 2.7
3.0 – 3.6
4.5 – 5.5
Figure
Units Number
ns
Figure 7
Figure 8
t
PZL
,
t
PZH
Output Enable Time
Turn on Time
(A to B
n
)
V
I
= 2 x V
CC
for t
PZL
V
I
= 0V for t
PZH
1.65 – 1.95
2.3 – 2.7
3.0 – 3.6
4.5 – 5.5
ns
Figure 7
Figure 8
t
PLZ
,
t
PHZ
Output Disable Time
Turn Off Time
(A Port to B Port)
V
I
= 2 x V
CC
for t
PLZ
V
I
= 0V for t
PHZ
1.65 – 1.95
2.3 – 2.7
3.0 – 3.6
4.5 – 5.5
ns
Figure 7
Figure 8
t
B-M
Break Before Make Time
9
1.65 – 1.95
2.3 – 2.7
3.0 – 3.6
4.5 – 5.5
ns
Figure 9
Q
Charge Injection
9
Isolation
11
C
L
= 0.1 nF, V
GEN
= 0V,
R
GEN
= 0Ω
R
L
= 50Ω, f = 10MHz
R
L
= 50Ω, f = 10MHz
R
L
= 50Ω
R
L
= 600Ω, 0.5 V
P-P
,
f = 600 Hz to 20 KHz
5.0
3.3
1.65 – 5.5
1.65 – 5.5
1.65 – 5.5
5.0
pC
Figure 10
OIRR
Xtalk
BW
THD
Off
dB
dB
MHz
%
Figure 11
Figure 12
Figure 15
Crosstalk
–3dB Bandwidth
Total Harmonic
Distortion
9
Capacitance
12
Symbol
C
IN
C
IO-B
C
IOA-ON
Parameter
Control Pin Input Capacitance
B Port Off Capacitance
A Port Capacitance When Switch Is Enabled
Typ
2.3
6.5
18.5
Max
Units
pF
pF
pF
Conditions
V
CC
= 0V
V
CC
= 5.0V
V
CC
= 5.0V
Figure
Number
Figure 13
Figure 14
Notes:
9. Guaranteed by Design.
10. This parameter is guaranteed by design but not tested. The bus switch contributes no propagation delay other than the
RC delay of the On Resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source
(zero output impedance).
11. Off Isolation = 20 log
10
[V
A
/ V
Bn
]
12. T
A
= +25°C, f = 1 MHz, Capacitance is characterized but not tested in production.
5
www.fairchildsemi.com
NC7SB3157, FSA3157 Rev. 1.0.1
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
