NC7SB3157, FSA3157 — Low-Voltage SPDT Analog Switch or 2:1 Multiplexer / De-multiplexer Bus Switch
DC Electrical Characteristics
Symbol
Parameter
High Level
Input Voltage
Low Level
Input Voltage
Input Leakage
Current
Off State Leakage
Current
0
≤
V
IN
≤
5.5V
0
≤
A, B
≤
V
CC
V
IN
= 0V, I
O
= 30mA
V
IN
= 2.4V, I
O
= –30mA
V
IN
= 4.5V, I
O
= –30mA
R
ON
Switch On
Resistance
(3)
V
IN
= 0V, I
O
= 24mA
V
IN
= 3V, I
O
= –24mA
V
IN
= 0V, I
O
= 8mA
V
IN
= 2.3V, I
O
= –8mA
V
IN
= 0V, I
O
= 4mA
V
IN
= 1.65V, I
O
= –4mA
I
CC
Quiescent Supply
Current;
All Channels On or
Off
Analog Signal
Range
I
A
= –30mA, 0
≤
V
Bn
≤
V
CC
R
RANGE
On Resistance Over I
A
= –24mA, 0
≤
V
Bn
≤
V
CC
Signal Range
(3, 7)
I
A
= –8mA, 0
≤
V
Bn
≤
V
CC
I
A
= –4mA, 0
≤
V
Bn
≤
V
CC
I
A
= –30mA, V
Bn
= 3.15
ΔR
ON
On Resistance
Match Between-
Channels
(3, 4, 5)
I
A
= –24mA, V
Bn
2.1
I
A
= –8mA, V
Bn
= 1.6
I
A
= –4mA, V
Bn
= 1.15
I
A
= –30mA, 0
≤
V
Bn
≤
V
CC
R
flat
On Resistance
Flatness
(3, 4, 6)
I
A
= –24mA, 0
≤
V
Bn
≤
V
CC
I
A
= –8mA, 0
≤
V
Bn
≤
V
CC
I
A
= –4mA, 0
≤
V
Bn
≤
V
CC
V
IN
= V
CC
or GND I
OUT
= 0
5.5
1.65
2.3
3.0
Conditions
V
CC
(V)
T
A
= +25°C
Min.
Typ.
Max.
T
A
= –40°C to
+85°C
Min.
0.75 V
CC
0.7 V
CC
Units
Max.
V
0.25 V
CC
0.3 V
CC
±1
±1
7.0
12.0
15.0
9.0
20.0
12.0
30.0
20.0
50.0
Ω
V
µA
µA
V
IH
V
IL
I
IN
I
OFF
1.65 – 1.95 0.75 V
CC
2.3 – 5.5
1.65 – 1.95
2.3 – 5.5
0 – 5.5
1.65 – 5.5
4.5
±0.05
±0.05
3.0
5.0
7.0
4.0
10.0
5.0
13.0
6.5
17.0
0.7 V
CC
0.25 V
CC
0.3 V
CC
±0.1
±0.1
7.0
12.0
15.0
9.0
20.0
12.0
30.0
20.0
50.0
1
10
µA
V
CC
4.5
3.0
2.3
1.65
4.5
3.0
2.3
1.65
5.0
3.3
2.5
1.8
0
V
CC
0
V
CC
25.0
50.0
100
300
V
Ω
0.15
0.2
0.5
0.50
6.0
12.0
28.0
125
Ω
Ω
Notes:
3. Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is
determined by the lower of the voltages on the two (A or B Ports).
4. Parameter is characterized, but not tested in production.
5.
ΔR
ON
= R
ON
max – R
ON
minimum measured at identical V
CC
, temperature, and voltage levels.
6. Flatness is defined as the difference between the maximum and minimum value of on resistance over the specified
range of conditions.
7. Guaranteed by design.
© 2006 Fairchild Semiconductor Corporation
NC7SB3157, FSA3157 Rev. 1.0.2
4
www.fairchildsemi.com
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
