Fairchild FSA3357 User manual

© 2005 Fairchild Semiconductor Corporation DS500805 www.fairchildsemi.com
December 2002
Revised August 2005
FSA3357 Low Voltage SP3T Analog Switch (3:1 Multiplexer/Demultiplexer)
FSA3357
Low Voltage SP3T Analog Switch
(3:1 Multiplexer/Demultiplexer)
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 technol-
ogy to achieve high speed enable and disable times and low On
Resistance. The break before make select circuitry prevents
disruption of signals on the B0, B1, or B2Ports due to the
switches temporarily being enabled during select pin switching.
The device is specified to operate over the 1.65 to 5.5V VCC
operating range. The control input tolerates voltages up to 5.5V
independent of the VCC operating range.
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 VCC
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
Applications
O Cell Phone
O PDA
O Video
Ordering Code:
Pb-Free package per JEDEC J-STD-020B.
MicroPak ¥ is a trademark of Fairchild Semiconductor Corporation.
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

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FSA3357
Analog Symbols
Pin Assignments for US8
(Top View)
Pin Assignments for MicroPak
(Top Through View)
Connection Diagram
(Top View)
Pin Descriptions
Function Table
Pin Names Description
A1, B0, B1, B2Data Ports
S1, S2Control Input
S1S2Function
0 0 No Connection
10B
0Connected to A
01B
1Connected to A
11B
2Connected to A

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FSA3357
Absolute Maximum Ratings(Note 1) Recommended Operating Conditions
(Note 3)
Note 1: Absolute maximum ratings are DC values beyond which the device may be
damaged or have its useful life impaired. The datasheet specifications should be met,
without exception, to ensure that the system design is reliable over its power supply,
temperature, and output/input loading variables. Fairchild does not recommend oper-
ation 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.
DC Electrical Characteristics
Supply Voltage (VCC)  0.5V to  7.0V
DC Switch Voltage (VS) (Note 2)
 0.5V to VCC
 0.5V
DC Input Voltage (VIN) (Note 2)
 0.5V to  7.0V
DC Input Diode Current (IIK)
@ (IIK) VIN
 0V  50 mA
DC Output Current (IOUT) 128 mA
DC VCC or Ground Current (ICC/IGND)
r 100 mA
Storage Temperature Range (TSTG)
 65 q C to  150 q C
Junction Temperature under Bias (TJ) 150
q C
Junction Lead Temperature (TL)
(Soldering, 10 seconds) 260
q C
Power Dissipation (PD) @
 85 q C180mW
Supply Voltage Operating (VCC) 1.65V to 5.5V
Control Input Voltage (VIN)0VtoV
CC
Switch Input Voltage (VIN)0VtoV
CC
Output Voltage (VOUT)0VtoV
CC
Operating Temperature (TA)  40 q C to  85 q C
Input Rise and Fall Time (tr, tf)
Control Input VCC = 2.3V - 3.6V 0 ns/V to 10 ns/V
Control Input VCC = 4.5V - 5.5V 0 ns/V to 5 ns/V
Thermal Resistance (
T
JA) 250
q C/W
MicroPak 8L Package 224
q C/W
Symbol Parameter VCC TA=
 25 q CT
A=
 40 q C to  85 q CUnits Conditions
(V) Min Typ Max Min Max
VIH HIGH Level 1.65  1.95 0.75 VCC 0.75 VCC V
Input Voltage 2.3  5.5 0.7 VCC 0.7 VCC
VIL LOW Level 1.65  1.95 0.25 VCC 0.25 VCC V
Input Voltage 2.3  5.5 0.3 VCC 0.3 VCC
IIN Input Leakage Current 0  5.5 r 0.1 r 1.0 P A0 d VIN d 5.5V
IOFF OFF State Leakage Current 1.65  5.5 r 0.1 r 1.0 P A0 d A, Bn d VCC
RON Switch On Resistance 4.5 5.0 7.0 7.0
:
VIN = 0V, IO= 30 mA
(Note 4) 6.0 12.0 12.0 VIN = 2.4V, IO=  30 mA
7.0 15.0 15.0 VIN = 4.5V, IO=  30 mA
3.0 6.5 9.0 9.0 VIN = 0V, IO= 24 mA
9.0 20.0 20.0 VIN = 3V, IO=  24 mA
2.3 8.0 12.0 12.0 VIN = 0V, IO= 8 mA
11.0 30.0 30.0 VIN = 2.3V, IO=  8 mA
1.65 10.0 20.0 20.0 VIN = 0V, IO= 4 mA
17.0 50.0 50.0 VIN = 1.65V, IO=  4 mA
ICC Quiescent Supply Current 5.5 1.0 10.0
P AVIN = VCC or GND
All Channels ON or OFF IOUT = 0
ASR Analog Signal Range VCC 0.0 VCC 0.0 VCC V
' RON On Resistance Match 4.5 0.15
:
IA=  30 mA, VBn = 3.15
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
1.65 0.62 IA=  4 mA, VBn = 1.15
Rflat On Resistance Flatness 5.0 6.0
:
IA=  30 mA, 0 d VBn d VCC
(Note 4)(Note 5)(Note 7) 3.3 12.0 IA=  24 mA, 0 d VBn d VCC
2.5 40.0 IA=  8 mA, 0 d VBn d VCC
1.8 140.0 IA=  4 mA, 0 d VBn d VCC

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FSA3357
DC Electrical Characteristics (Continued)
Note 4: Measured by the voltage drop between A and Bnpins at the indicated current through the switch. On Resistance is determined by the lower of the voltages on the two (A
or BnPorts).
Note 5: Parameter is characterized but not tested in production.
Note 6: ' RON = RON max
 RON min measured at identical VCC, temperature and voltage levels.
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
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)
Note 11: TA=  25 q C, f = 1 MHz, Capacitance is characterized but not tested in production.
Symbol Parameter VCC TA=
 25 q CT
A=
 40 q C to  85 q CUnits Conditions Figure
(V) Min Typ Max Min Max Number
tPHL Propagation Delay 1.65  1.95 2.0
ns VI= OPEN Figures
1, 2
tPLH Bus to Bus 2.3  2.7 1.1
(Note 8) 3.0  3.6 0.7
4.5  5.5 0.4
tPZL Output Enable Time 1.65  1.95 5.0 32.0 5.0 34.0
ns Figures
1, 2
tPZH Turn on Time 2.3  2.7 3.0 15.0 3.0 16.5 VI= 2 x VCC for tPZL
(A to Bn)3.0  3.6 2.0 9.5 2.0 11.0 VI= 0V for tPZH
4.5  5.5 1.5 6.5 1.5 7.0
tPLZ Output Disable Time 1.65  1.95 3.0 14.0 3.0 14.5
ns Figures
1, 2
tPHZ Turn Off Time 2.3  2.7 2.0 7.2 2.0 7.8 VI= 2 x VCC for tPLZ
(A Port to BnPort) 3.0  3.6 1.5 5.1 1.5 5.5 VI= 0V for tPHZ
4.5  5.5 0.8 3.7 0.8 4.0
tB-M Break Before Make Time 1.65  1.95 0.5 0.5
ns Figure 3
(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 pC CL= 0.1 nF, VGEN = 0V Figure 4
3.3 2.0 RGEN = 0 :
OIRR Off Isolation (Note 10) 1.65  5.5  58.0 dB RL= 50 :
Figure 5
f = 10MHz
Xtalk Crosstalk 1.65  5.5  60.0 dB RL= 50 :
Figure 6
f = 10MHz
BW  3dB Bandwidth 1.65  5.5 250.0 MHz RL= 50 : Figure 9
THD Total Harmonic Distortion
5.0 .01 %
RL= 600 :
(Note 9) 0.5 VP-P
f = 600 Hz to 20 KHz
Symbol Parameter Typ Max Units Conditions Figure
Number
CIN Control Pin Input Capacitance 2.0 pF VCC = 0V
CIO-B B Port Off Capacitance 3.6 pF VCC = 5.0V Figure 7
CIOA-ON A Port Capacitance When Switch Is Enabled 14.5 pF VCC = 5.0V Figure 8

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FSA3357
AC Loading and Waveforms
Note: Input driven by 50 : source terminated in 50 :
Note: CLincludes load and stray capacitance
Note: Input PRR = 1.0 MHz; tW= 500 ns
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
FIGURE 3. Break Before Make Interval Timing

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FSA3357
AC Loading and Waveforms (Continued)
FIGURE 4. Charge Injection Test
FIGURE 5. Off Isolation FIGURE 6. Crosstalk
FIGURE 7. Channel Off Capacitance FIGURE 8. Channel On Capacitance
FIGURE 9. Bandwidth

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FSA3357
Tape and Reel Specification
TAPE FORMAT for US8
TAPE DIMENSIONS inches (millimeters)
REEL DIMENSIONS inches (millimeters)
Package Tape Number Cavity Cover Tape
Designator Section Cavities Status Status
Leader (Start End) 125 (typ) Empty Sealed
K8X Carrier 250 Filled Sealed
Trailer (Hub End) 75 (typ) Empty Sealed
Tape
Size ABCDN W1 W2 W3
8 mm 7.0 0.059 0.512 0.795 2.165 0.331
 0.059/ 
0.000 0.567 W1
 0.078/  0.039
(177.8) (1.50) (13.00) (20.20) (55.00) (8.40
 1.50/  0.00) (14.40) (W1  2.00/  1.00)

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FSA3357
TAPE FORMAT for MicroPak
REEL DIMENSIONS inches (millimeters)
Package Tape Number Cavity Cover Tape
Designator Section Cavities Status Status
Leader (Start End) 125 (typ) Empty Sealed
L8X Carrier 5000 Filled Sealed
Trailer (Hub End) 75 (typ) Empty Sealed
TapeSizeABCDN W1 W2 W3
8 mm 7.0 0.059 0.512 0.795 2.165 0.331
 0.059/  0.000 0.567 W1  0.078/  0.039
(177.8) (1.50) (13.00) (20.20) (55.00) (8.40
 1.50/  0.00) (14.40) (W1  2.00/  1.00)

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FSA3357
Physical Dimensions inches (millimeters) unless otherwise noted
8-Lead US8, JEDEC MO-187, Variation CA 3.1mm Wide
Package Number MAB08A

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FSA3357
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Pb-Free 8-Lead MicroPak, 1.6 mm Wide
Package Number MAC08A