Fairchild FSA3357 User Manual
FSA3357
Low Voltage SP3T Analog Switch
(3:1 Multiplexer/Demultiplexer)
FSA3357 Low Voltage SP3T Analog Switch (3:1 Multiplexer/Demultiplexer)
December 2002
Revised August 2005
General Description
The FSA3357 is a high performance, single-pole/triple-throw
(SP3T) Analog Switch or 3:1 Multiplexer/Demultiplexer. The
device is fabricated with advanced sub-micron CMOS technology to achieve high speed enable and disable times and low On
Resistance. The break before make select circuitry prevents
disruption of signals on the B
switches temporarily being enabled during select pin switching.
The device is specified to operate over the 1.65 to 5.5V V
operating range. The control input tolerates voltages up to 5.5V
independent of the V
operating range.
CC
, B1, or B2 Ports due to the
0
CC
Features
O
Useful in both analog and digital applications
O
Space saving US8 8-lead surface mount package
O
Low On Resistance; 9: on typ @ 3.3V V
O
Broad VCC operating range; 1.65V to 5.5V
O
Rail-to-Rail signal handling
O
Power down high impedance control input
O
Overvoltage tolerance of control input to 7.0V
O
Break before make enable circuitry
O
250 MHz - 3dB bandwidth
O
Space saving Pb-Free MicroPak¥ packaging
CC
Applications
O
Cell Phone
O
PDA
O
Video
Ordering Code:
Product
Package Description Supplied AsOrder Package Code
Number Number Top Mark
FSA3357K8X MAB08A A357 8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel
FSA3357L8X MAC08A FE Pb-Free 8-Lead MicroPak, 1.6 mm Wide 5k Units on Tape and Reel
Pb-Free package per JEDEC J-STD-020B.
MicroPak¥ is a trademark of Fairchild Semiconductor Corporation.
© 2005 Fairchild Semiconductor Corporation DS500805 www.fairchildsemi.com
Analog Symbols
Connection Diagram
FSA3357
Pin Assignments for US8
(Top View)
Pin Assignments for MicroPak
(T op Through View)
Pin Descriptions
Pin Names Description
A1, B0, B1, B
S
2
, S
1
2
Function Table
S
1
0 0 No Connection
10B
01B
11B
S
(Top View)
2
Data Ports
Control Input
Function
Connected to A
0
Connected to A
1
Connected to A
2
www.fairchildsemi.com 2
FSA3357
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC)
DC Switch Voltage (V
DC Input Voltage (V
DC Input Diode Current (I
@ (I
) VIN 0V
IK
DC Output Current (I
or Ground Current (ICC/I
DC V
CC
Storage Temperature Range (T
Junction Temperature under Bias (T
Junction Lead Temperature (T
) (Note 2)
S
) (Note 2)
IN
)
IK
) 128 mA
OUT
)
GND
)
STG
) 150qC
J
)
L
(Soldering, 10 seconds) 260
Power Dissipation (P
) @ 85qC180 mW
D
0.5V to 7.0V
0.5V to 7.0V
65q
C to 150qC
DC Electrical Characteristics
0.5V to V
50 mA
r
100 mA
CC
0.5V
q
Recommended Operating Conditions
(Note 3)
Supply Voltage Operating (V
Control Input Voltage (V
Switch Input Voltage (VIN)0V to V
Output Voltage (V
)0V to V
OUT
Operating Temperature (TA)
Input Rise and Fall Time (t
Control Input V
Control Input V
Thermal Resistance (
C
MicroPak 8L Package 224
Note 1: Absolute maximum ratings are DC values beyond which the device may be
damaged or have its useful life imp ai red. The dat ashee t speci ficati on s should be m et,
without exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. Fairchild does not recommend operation outside datasheet specifications.
Note 2: The input and output negative voltage ratings may be exceeded if the input
and output diode current ratings are observed.
Note 3: Control inputs must be held HIGH or LOW, they must not float.
= 2.3V - 3.6V 0 ns/V to 10 ns/V
CC
= 4.5V - 5.5V 0 ns/V to 5 ns/V
CC
T
) 1.65V to 5.5V
CC
)0V to V
IN
, tf)
r
) 250qC/W
JA
40q
CC
CC
CC
C to 85qC
q
C/W
Symbol Parameter
V
IH
V
IL
I
IN
I
OFF
R
ON
I
CC
ASR Analog Signal Range V
'
R
R
flat
HIGH Level 1.65 1.95 0.75 V
Input Voltage 2.3 5.5 0.7 V
LOW Level 1.65 1.95 0.25 V
Input Voltage 2.3 5.5 0.3 V
Input Leakage Current 0 5.5
OFF State Leakage Current 1.65 5.5
Switch On Resistance 4.5 5.0 7.0 7.0
(Note 4) 6.0 12.0 12.0 VIN = 2.4V, IO = 30 mA
Quiescent Supply Current
All Channels ON or OFF I
On Resistance Match 4.5 0.15
ON
Between Channels 3.0 0.22 IA = 24 mA, VBn = 2.1
(Note 4)(Note 5)(Note 6) 2.3 0.31 IA = 8 mA, VBn = 1.6
On Resistance Flatness 5.0 6.0
(Note 4)(Note 5)(Note 7) 3.3 12.0 IA = 24 mA, 0 d V
V
CC
(V) Min Typ Max Min Max
3.0 6.5 9.0 9.0 VIN = 0V, IO = 24 mA
2.3 8.0 12.0 12.0 VIN = 0V, IO = 8 mA
1.65 10.0 20.0 20.0 VIN = 0V, IO = 4 mA
5.5 1.0 10.0
CC
1.65 0.62 IA = 4 mA, VBn = 1.15
2.5 40.0 IA = 8 mA, 0 d V
1.8 140.0 IA = 4 mA, 0 d V
TA = 25qCT
CC
CC
CC
CC
r
0.1
r
0.1
7.0 15.0 15.0 VIN = 4.5V, IO = 30 mA
9.0 20.0 20.0 VIN = 3V, IO = 24 mA
11.0 30.0 30.0 VIN = 2.3V, IO = 8 mA
17.0 50.0 50.0 VIN = 1.65V, IO = 4 mA
0.0 V
CC
= 40qC to 85qC
A
0.75 V
CC
0.7 V
CC
0.0 V
0.25 V
0.3 V
r
r
1.0
1.0
Units Conditions
V
CC
V
CC
P
A0 d VIN d 5.5V
P
A0 d A, Bn d V
:
P
A
CC
V
:
:
CC
VIN = 0V, IO = 30 mA
VIN = VCC or GND
= 0
OUT
IA = 30 mA, VBn = 3.15
IA = 30 mA, 0 d V
Bn
Bn
Bn
Bn
d
V
CC
d
V
CC
d
V
CC
d
V
CC
3 www.fairchildsemi.com
DC Electrical Characteristics (Continued)
Note 4: Measured by the voltage drop between A and Bn pins at the indicated current through the switch. On Resistance is determined by the lower of the voltages on the two (A
Ports).
or B
FSA3357
n
Note 5: Parameter is characterized but not tested in production.
Note 6: 'R
= RON max RON min measured at identical VCC, temperature and voltage levels.
ON
Note 7: Flatness is defined as the difference between the maximum and minimum value of On Resistance over the specified range of conditions.
AC Electrical Characteristics
Symbol Parameter
t
t
PHL
PLH
Propagation Delay 1.65 1.95 2.0
Bus to Bus 2.3 2.7 1.1
V
CC
(V) Min Typ Max Min Max Number
TA = 25qCT
(Note 8) 3.0 3.6 0.7
4.5 5.5 0.4
t
t
PZL
PZH
Output Enable Time 1.65 1.95 5.0 32.0 5.0 34.0
Turn on Time 2.3 2.7 3.0 15.0 3.0 16.5 VI = 2 x VCC for t
(A to Bn)3.0
3.6 2.0 9.5 2.0 11.0 VI = 0V for t
4.5 5.5 1.5 6.5 1.5 7.0
t
t
PLZ
PHZ
Output Disable Time 1.65 1.95 3.0 14.0 3.0 14.5
Turn Off Time 2.3 2.7 2.0 7.2 2.0 7.8 VI = 2 x V
(A Port to Bn Port) 3.0 3.6 1.5 5.1 1.5 5.5 VI = 0V for t
4.5 5.5 0.8 3.7 0.8 4.0
t
B-M
Break Before Make Time 1.65 1.95 0.5 0.5
(Note 9) 2.3 2.7 0.5 0.5
3.0 3.6 0.5 0.5
4.5 5.5 0.5 0.5
Q Charge Injection (Note 9) 5.0 3.0
3.3 2.0 R
OIRR Off Isolation (Note 10) 1.65 5.5
Xtalk Crosstalk 1.65 5.5
BW
3dB Bandwidth 1.65 5.5 250.0 MHz RL = 50
58.0
60.0
THD Total Harmonic Distortion
(Note 9) 0.5 V
5.0 .01 %
= 40qC to 85qC
A
PZL
Figure
Figures
Figures
Figures
Units Conditions
ns VI = OPEN
ns
ns
CC
PZH
for t
PHZ
PLZ
ns Figure 3
pC
dB
dB
CL = 0.1 nF, V
= 0
GEN
RL = 50
f = 10MHz
RL = 50
f = 10MHz
RL = 600
P-P
= 0V
GEN
:
:
:
:
Figure 4
Figure 5
Figure 6
Figure 9
:
f = 600 Hz to 20 KHz
1, 2
1, 2
1, 2
Note 8: 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).
Note 9: Guaranteed by Design.
Note 10: Off Isolation = 20 log10 [VA / VBn]
Capacitance (Note 11)
Symbol Parameter Typ Max Units Conditions
C
IN
C
IO-B
C
IOA-ON
Note 11: TA = 25qC, f = 1 MHz, Capacitance is characterized but not tested in production.
www.fairchildsemi.com 4
Control Pin Input Capacitance 2.0 pF VCC = 0V
B Port Off Capacitance 3.6 pF VCC = 5.0V Figure 7
A Port Capacitance When Switch Is Enabled 14.5 pF VCC = 5.0V Figure 8
Figure
Number
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