Datasheet

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSA2257 • Rev. 1.0.6 4
FSA2257— Low R
ON
, Low-Voltage Dual SPDT Bi-Directional Analog Switch
DC 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
Min.
Typ.
Max.
Min.
Max.
V
IH
Input Voltage High
1.8 to 2.7
1.0
V
2.7 to 3.6
2.0
4.5 to 5.5
2.4
V
IL
Input Voltage Low
1.8 to 2.7
0.4
V
2.7 to 3.6
0.6
4.5 to 5.5
0.8
I
IN
Control Input
Leakage
V
IN
=0 V to V
CC
2.7 to 3.6
-1.0
1.0
µA
4.5 to 5.5
-1.0
1.0
I
NO(OFF)
,
I
NC(OFF)
Off Leakage
Current of Port B
0
and B
1
A=1 V, 4.5 V,
B
0
or B
1
=1 V, 4.5 V
5.5
-2
2
-20
20
nA
I
A(ON)
On Leakage
Current of Port A
A=1 V, 4.5V, B
0
or
B
1
=1 V,4.5 V or
Floating
5.5
-4
2
-40
40
nA
R
ON
Switch On
Resistance
MicroPak
(3)
I
OUT
=100 mA,
B
0
or B
1
=1.5 V
1.8
4.6

2.7
2.6
4.0
4.3
I
OUT
=100 mA,
B
0
or B
1
=3.5 V
4.5
0.95
1.15
1.30
Switch On
Resistance
MSOP/TSSOP
(3)
I
OUT
=100 mA,
B
0
or B
1
=1.5 V
2.7
2.8
4.5
I
OUT
=100 mA,
B
0
or B
1
=3.5 V
4.5
1.5
2.3
R
ON
On Resistance
Matching Between
Channels
MicroPak
(4)
I
OUT
=100 mA,
B
0
or B
1
=3.5 V
4.5
0.06
0.12
0.15

On Resistance
Matching Between
Channels MSOP /
TSSOP
(4)
4.5
0.7
0.3
R
FLAT(ON)
On Resistance
Flatness
(5)
I
OUT
=100 mA, B
0
or
B
I
=0 V, 0.75 V,1.5 V
1.8
3.0

2.7
1.4
I
OUT
=100 mA,
B
0
or B
I
=0 V, 1 V,
2 V
4.5
0.2
0.3
0.4
I
CC
Quiescent Supply
Current
V
IN
=0 V or V
CC
,
I
OUT
=0 V
3.6
0.1
0.5
1.0
µA
5.5
0.1
0.5
1.0
Notes:
3. On resistance is determined by the voltage drop between A and B pins at the indicated current through the
switch.
4. ΔR
ON
= R
ONmax
– R
ONmin
measured at identical V
CC
, temperature, and voltage.
5. Flatness is defined as the difference between the maximum and minimum value of on resistance over the
specified range of conditions.