1
PS8552D 02/24/05
Features
CMOS Technology for Bus and Analog Applications
Low ON Resistance: 8-ohms at 3.0V
Wide V
CC
Range: 1.65V to 5.5V
Rail-to-Rail Signal Range
Control Input Overvoltage Tolerance: 5.5V min.
Fast Transition Speed: 5.2ns max. at 5V
High Off Isolation: 57dB at 10MHz
54dB (10MHz) Crosstalk Rejection Reduces Signal Distortion
Break-Before-Make Switching
High Bandwidth: 250 MHz
Extended Industrial Temperature Range: 40
C to 85
C
Improved Direct Replacement for NC7SB3157
Packaging (Pb-free & Green available):
- 6-pin TDFN (ZA)
- 6-pin SC70 (C)
Applications
Cell Phones
PDAs
Portable Instrumentation
Battery Powered Communications
Computer Peripherals
PI5A3157
SOT
INY
TM
Low Voltage SPDT Analog Switch
2:1 Mux/Demux Bus Switch
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Description
The PI5A3157 is a high-bandwidth, fast single-pole double-throw
(SPDT) CMOS switch. It can be used as an analog switch or as a
low-delay bus switch. Specified over a wide operating power
supply voltage range, 1.65V to 5.5V, the PI5A3157 has a maximum
ON resistance of 12-ohms at 1.65V, 9-ohms at 2.3V & 6-ohms at 4.5V.
Break-before-make switching prevents both switches being
enabled simultaneously. This eliminates signal disruption during
switching.
The control input, S, tolerates input drive signals up to 5.5V,
independent of supply voltage.
PI5A3157 is an improved direct replacement for the NC7SB3157.
)
S
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B
1
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Logic Function Table
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1
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Pin Description
Connection Diagram
B
1
GND
1
2
3
6
4
B
0
S
5
V
CC
A
2
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PI5A3157
SOT
INY
TM
Low Voltage SPDT Analog Switch
2:1 Mux/Demux Bus Switch
PS8552D 02/24/05
Recommended Operating Conditions
(3)
Supply Voltage Operating (V
CC
) . . . . . . . . . . . . . . 1.65V to 5.5V
Control Input Voltage (V
IN
) . . . . . . . . . . . . . . . . . . . . 0V to V
CC
Switch Input Voltage (V
IN
) . . . . . . . . . . . . . . . . . . . . . 0V to V
CC
Output Voltage (V
OUT
) . . . . . . . . . . . . . . . . . . . . . . . . 0V to V
CC
Operating Temperature (T
A
) . . . . . . . . . . . . . . . 40C to +85C
Input Rise and Fall Time (t
r
,t
f
)
Control Input V
CC
= 2.3V - 3.6V . . . . . . . . . . 0ns/V to 10ns/V
Control Input V
CC
= 4.5V - 5.5V . . . . . . . . . . . 0ns/V to 5ns/V
Thermal Resistance (
JA
) . . . . . . . . . . . . . . . . . . . . . . 350C/W
Absolute Maximum Ratings
(1)
Supply Voltage V
CC
................................................ 0.5V to +7V
DC Switch Voltage (V
S
)
(2)
............................. 0.5V to V
CC
+0.5V
DC Input Voltage (V
IN
)
(2)
.................................... 0.5V to +7.0V
DC Output Current (V
OUT
) ............................................... 128mA
DC V
CC
or Ground Current (I
CC
/I
GND
) ............................ 100mA
Storage Temperature Range (T
STG
) ................ 65C to +150C
Junction Temperature under Bias (T
J
) ............................... 150C
Junction Lead Temperature (T
L
)
(Soldering, 10 seconds) ................................................ 260C
Power Dissipation (P
D
) @ +85C ..................................... 180mW
Notes
1. Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any
other conditions beyond those indicated in the operational sections of this specification is not implied.
2. The input and output negative voltage ratings may be exceeded if the inut and output diode current ratings are observed.
3. Control input must be held HIGH or LOW; it must not float.
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4
=
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=
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3
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5
2
=
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,
A
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4
2
=
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0
.
3
=
2
1
9
1
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.
2
T
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5
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=
6
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2
=
6
1
4
2
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0
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=
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.
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2
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4
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,
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=
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0
=
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5
6
.
1
T
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5
2
=
8
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1
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,
A
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4
=
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5
6
.
1
=
7
2
9
3
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,
A
m
4
=
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1
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0
4
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5
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1
I
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V
,
A
m
4
=
N
I
V
5
6
.
1
=
9
3
DC Electrical Characteristics
(Over the Operating temperature range, T
A
= 40C to 85C)
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3
PS8552D 02/24/05
PI5A3157
SOT
INY
TM
Low Voltage SPDT Analog Switch
2:1 Mux/Demux Bus Switch
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.
1
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1
DC Electrical Characteristics
(Over the Operating temperature range, T
A
= 40C to 85C) (continued)
Notes:
4. Measured by voltage drop between A and B pins at the indicated current through the device. ON resistance is determined by the lower of the
voltages on two ports (A or B).
5. Parameter is characterized but not tested in production.
6. DR
ON
= R
ON
max R
ON
min. measured at identical V
CC
, temperature and voltage levels.
7. Flatness is defined as difference between maximum and minimum value of ON resistance over the specified range of conditions.
8. Guaranteed by design.
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Capacitance
(12)
4
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PI5A3157
SOT
INY
TM
Low Voltage SPDT Analog Switch
2:1 Mux/Demux Bus Switch
PS8552D 02/24/05
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2
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.
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UTPUT
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T
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N
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f
L
Z
P
,
V
I
t
r
o
f
V
0
=
H
Z
P
V
C
C
V
5
.
2
=
T
A
&
C
5
2
=
C
5
8
o
t
0
4
4
2
V
C
C
V
3
.
3
=
4
1
V
C
C
V
6
.
3
o
t
V
0
.
3
=
6
.
7
V
C
C
V
5
.
5
o
t
V
5
.
4
=
7
.
5
t
Z
L
P
t
Z
H
P
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p
t
u
O
n
r
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T
e
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b
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D
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m
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.
2
d
n
a
1
s
m
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a
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d
V
I
V
2
=
C
C
T
r
o
f
L
Z
P
,
V
I
t
r
o
f
V
0
=
H
Z
P
V
C
C
V
5
9
.
1
o
t
V
5
6
.
1
=
T
A
C
5
2
=
3
5
.
2
1
V
C
C
V
7
.
2
o
t
V
3
.
2
=
2
7
V
C
C
V
6
.
3
o
t
V
0
.
3
=
5
.
1
5
V
C
C
V
5
.
5
o
t
V
5
.
4
=
8
.
0
5
.
3
t
Z
L
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t
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H
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p
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m
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S
.
2
d
n
a
1
s
m
a
r
g
a
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d
V
I
V
2
=
C
C
T
r
o
f
L
Z
P
,
V
I
t
r
o
f
V
0
=
H
Z
P
V
C
C
V
5
.
2
=
T
A
o
t
0
4
=
C
5
8
3
1
V
C
C
V
3
.
3
=
5
.
7
V
C
C
V
6
.
3
o
t
V
0
.
3
=
3
.
5
V
C
C
V
5
.
5
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t
V
5
.
4
=
8
.
3
t
M
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r
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a
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9
(
V
C
C
V
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2
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5
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5
8
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t
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4
5
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0
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C
C
V
3
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3
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0
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C
C
V
6
.
3
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t
V
0
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3
=
5
.
0
V
C
C
V
5
.
5
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t
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5
.
4
=
5
.
0
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e
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r
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h
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n
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0
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4
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V
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.
5
=
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=
7
C
p
V
C
C
V
3
.
3
=
3
R
R
I
O
n
o
i
t
a
l
o
s
I
f
f
O
R
L
0
5
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,
N
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G
,
V
0
=
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N
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=
.
.
5
t
i
u
c
r
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s
e
t
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)
1
1
(
V
C
C
V
5
.
5
o
t
V
5
6
.
1
=
T
A
C
5
2
=
7
5
B
d
X
K
L
A
T
k
l
a
t
s
s
o
r
C
n
o
i
t
a
l
o
s
I
.
6
t
i
u
c
r
i
c
t
s
e
t
e
e
S
V
C
C
V
5
.
5
o
t
V
5
6
.
1
=
T
A
C
5
2
=
4
5
f
B
d
3
B
d
3
h
t
d
i
w
d
n
a
B
9
t
i
u
c
r
i
c
t
s
e
t
e
e
S
V
C
C
V
5
.
5
o
t
V
5
6
.
1
=
T
A
C
5
2
=
0
5
2
z
H
M
Switch and AC Characteristics
Notes:
9.
Guaranteed by design.
10. Guaranteed by design but not production tested. The device contributes no other propagation delay other than the RC delay of the switch
ON resistance and the 50pF load capacitance, whne driven by an ideal voltage source with zero output impedance.
11. Off Isolation = 20 Log
10
[ V
A
/ V
Bn
] and is measured in dB.
12. T
A
= 25C, f = 1MHz. Capacitance is characterized but not tested in production.
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5
PS8552D 02/24/05
PI5A3157
SOT
INY
TM
Low Voltage SPDT Analog Switch
2:1 Mux/Demux Bus Switch
100
CL
10pF
Notes:
Input driven by 50W source terminated in 50
.
CL includes load and stray capacitance.
Input PRR = 1.0 MHz; tw = 500ns.
From
Output
Under
Test
Figure 1. AC Test Circuit
Figure 2. AC Waveforms
Figure 3. Break Before Make Interval Timing
Test Circuits and Timing Diagrams
tr = 2.5ns
10%
10%
10%
10%
50%
V
CC
V
CC
V
OL
+0.3V
V
OH
0.3V
V
OL
V
OH
V
TRI
V
TRI
V
OH
t
W
t
PLH
t
PHL
V
OL
GND
GND
90%
50%
50%
50%
90%
50%
90%
90%
50%
50%
50%
tr = 2.5ns
tr = 2.5ns
tr = 2.5ns
t
PZL
t
PZH
t
PHZ
t
PLZ
SWITCH
INPUT
OUTPUT
CONTROL
INPUT
OUTPUT
OUTPUT
C
L
R
L
t
D
V
OUT
0.9 x V
OUT
Logic
Input
A
A
B
0
B
1
V
IN
Logic
Input
V
OUT
6
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PI5A3157
SOT
INY
TM
Low Voltage SPDT Analog Switch
2:1 Mux/Demux Bus Switch
PS8552D 02/24/05
Figure 4. Charge Injection Test
Figure 5. Off Isolation
Figure 6. Crosstalk
Figure 7. Channel Off Capacitance
Figure 8. Channel On Capacitance
C
L
R
L
1M
100pF
A
S
B
N
V
GE
R
GEN
Logic
Input
Logic
Input
Q = (
V
OUT
)(C
L
)
V
OUT
OFF
ON
OFF
V
OUT
Analyzer
A
S
10nF
GND
B
N
V
CC
V
CC
Logic Input
0V or B
IH
50
50
Analyzer
Signal
Generator
0dBm
S
A
10nF
GND
B
0
B
1
V
CC
V
CC
50
50
Capacitance
Meter
A
S
10nF
GND
f = 1 MHz
B
N
V
CC
V
CC
Logic Input
0V or B
IH
Capacitance
Meter
A
S
10nF
GND
B
N
V
CC
V
CC
f = 1 MHz
Logic Input
0V or B
IH
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7
PS8552D 02/24/05
PI5A3157
SOT
INY
TM
Low Voltage SPDT Analog Switch
2:1 Mux/Demux Bus Switch
Figure 9. Bandwidth
5
6
4
2
1
3
Packaging Mechanical: 6-Pin SC70 (C)
Signal
Generator
0dBm
A
10nF
GND
B
N
Logic Input
0V or V
CC
S
V
CC
V
CC
50
8
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12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012
PI5A3157
SOT
INY
TM
Low Voltage SPDT Analog Switch
2:1 Mux/Demux Bus Switch
PS8552D 02/24/05
Pericom Semiconductor Corporation 1-800-435-2336 www.pericom.com
Ordering Information
0.0 - 0.05
1.50 0.10
1.00 0.10
0.23 0.05 (6x)
1.00
0.50 Typ.
0.13
0.30 0.10 (6x)
0.1 x 45
CHAMFER
Pin 1
Bottom View
Side Views
Top View
0.80 MAX
0.80 MAX
Packaging Mechanical: 6-Pin TDFN (ZA)
Notes:
1.
Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
2.
X = Tape and reel
Ordering Code
Package Code
Package Description
Top Marking
PI5A3157CX
C
6-pin SC70
ZM
PI5A3157CEX
C
Pb-free & Green 6-pin SC70
ZM
PI5A3157ZAEX
ZA
Pb-free & Green 6-contact TDFN
ZM
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