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 DescriptionSupplied AsOrderPackageCode
Number NumberTop Mark
FSA3357K8XMAB08AA3578-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide 3k Units on Tape and Reel
FSA3357L8XMAC08AFEPb-Free 8-Lead MicroPak, 1.6 mm Wide5k Units on Tape and Reel
Pb-Free package per JEDEC J-STD-020B.
MicroPak¥ is a trademark of Fairchild Semiconductor Corporation.
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 Package224
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 - 3.6V0 ns/V to 10 ns/V
CC
= 4.5V - 5.5V0 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
SymbolParameter
V
IH
V
IL
I
IN
I
OFF
R
ON
I
CC
ASRAnalog Signal RangeV
'
R
R
flat
HIGH Level 1.65 1.95 0.75 V
Input Voltage2.3 5.50.7 V
LOW Level1.65 1.950.25 V
Input Voltage2.3 5.50.3 V
Input Leakage Current0 5.5
OFF State Leakage Current1.65 5.5
Switch On Resistance4.55.07.07.0
(Note 4)6.012.012.0VIN = 2.4V, IO = 30 mA
On Resistance Flatness5.06.0
(Note 4)(Note 5)(Note 7)3.312.0IA = 24 mA, 0 d V
V
CC
(V)MinTypMaxMinMax
3.06.59.09.0VIN = 0V, IO = 24 mA
2.38.012.012.0VIN = 0V, IO = 8 mA
1.6510.020.020.0VIN = 0V, IO = 4 mA
5.51.010.0
CC
1.650.62IA = 4 mA, VBn = 1.15
2.540.0IA = 8 mA, 0 d V
1.8140.0IA = 4 mA, 0 d V
TA = 25qCT
CC
CC
CC
CC
r
0.1
r
0.1
7.015.015.0VIN = 4.5V, IO = 30 mA
9.020.020.0VIN = 3V, IO = 24 mA
11.030.030.0VIN = 2.3V, IO = 8 mA
17.050.050.0VIN = 1.65V, IO = 4 mA
0.0V
CC
= 40qC to 85qC
A
0.75 V
CC
0.7 V
CC
0.0V
0.25 V
0.3 V
r
r
1.0
1.0
UnitsConditions
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
3www.fairchildsemi.com
Page 4
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
SymbolParameter
t
t
PHL
PLH
Propagation Delay1.65 1.952.0
Bus to Bus2.3 2.71.1
V
CC
(V)MinTypMaxMinMaxNumber
TA = 25qCT
(Note 8)3.0 3.60.7
4.5 5.50.4
t
t
PZL
PZH
Output Enable Time1.65 1.955.032.05.034.0
Turn on Time2.3 2.73.015.03.016.5VI = 2 x VCC for t
(A to Bn)3.0
3.62.09.52.011.0VI = 0V for t
4.5 5.51.56.51.57.0
t
t
PLZ
PHZ
Output Disable Time1.65 1.953.014.03.014.5
Turn Off Time2.3 2.72.07.22.07.8VI = 2 x V
(A Port to Bn Port)3.0 3.61.55.11.55.5VI = 0V for t
4.5 5.50.83.70.84.0
t
B-M
Break Before Make Time1.65 1.950.50.5
(Note 9)2.3 2.70.50.5
3.0 3.60.50.5
4.5 5.50.50.5
QCharge Injection (Note 9)5.03.0
3.32.0R
OIRROff Isolation (Note 10)1.65 5.5
XtalkCrosstalk1.65 5.5
BW
3dB Bandwidth1.65 5.5250.0MHzRL = 50
58.0
60.0
THDTotal Harmonic Distortion
(Note 9)0.5 V
5.0.01%
= 40qC to 85qC
A
PZL
Figure
Figures
Figures
Figures
UnitsConditions
nsVI = OPEN
ns
ns
CC
PZH
for t
PHZ
PLZ
nsFigure 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)
SymbolParameterTypMaxUnitsConditions
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.com4
Control Pin Input Capacitance2.0pFVCC = 0V
B Port Off Capacitance3.6pFVCC = 5.0VFigure 7
A Port Capacitance When Switch Is Enabled14.5pFVCC = 5.0VFigure 8
Figure
Number
Page 5
AC Loading and Waveforms
FSA3357
Note: Input driven by 50: source terminated in 50
Note: C
FSA3357 Low Voltage SP3T Analog Switch (3:1 Multiplexer/Demultiplexer)
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTI ON OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY
ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT
CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES
OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION
As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the body, or
(b) support or sustain life, or (c) whose failure to perform
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to
result in significant injury to the user.
2. A critical component is any component of a life support
device or system whose failure to perform can be reasonably expected to cause the failure of the life support device
or system, or to affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of terms
Datasheet Identification Product StatusDefinition
Advance InformationF orm ativ e or In Design This datasheet contains the design specifications for product develop-
PreliminaryFirst Produc tionThis datasheet contains preliminary data, and supplementary data will
No Identification NeededFull ProductionThis datasheet contains final specifications. Fairchild Semiconductor
ObsoleteNot In ProductionT his datasheet contains specifications on a product that has been dis-
ment. Specifications may change in any manner without notice.
be published at a later date. Fairchild Semiconductor reserves the right
to make changes at any time without notice in order to improve design.
reserves the right to make changes at any time without notice in order
to improve design.
continued by Fairchild Semiconductor. The datasheet is printed for reference information only.
11www.fairchildsemi.com
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