19-2646; Rev 3; 1/12
50
Ω
, Low-Voltage, Quad SPST/Dual SPDT Analog
Switches in WLP
General Description
The MAX4747–MAX4750 low-voltage, quad single-pole
single-throw (SPST)/dual single-pole/double-throw
(SPDT) analog switches operate from a single +2V to
+11V supply and handle rail-to-rail analog signals.
These switches exhibit low leakage current (0.1nA) and
consume less than 0.5nW (typ) of quiescent power,
making them ideal for battery-powered applications.
When powered from a +3V supply, these switches fea-
ture 50Ω (max) on-resistance (R
ON
), with 3.5Ω (max)
matching between channels and 9Ω (max) flatness
over the specified signal range.
The MAX4747 has four normally open (NO) switches, the
MAX4748 has four normally closed (NC) switches, and
the MAX4749 has two NO and two NC switches. The
MAX4750 has two SPDT switches. These switches are
available in 14-pin TSSOP, 16-pin TQFN (4mm x 4mm),
and 16-bump WLP packages. This tiny chip-scale pack-
age occupies a 2mm
2mm area and significantly
reduces the required PC board area.
Features
o
2mm
2mm WLP
o
Guaranteed On-Resistance (R
ON
)
25Ω (max) at +5V
50Ω (max) at +3V
o
On-Resistance Matching
3Ω (max) at +5V
3.5Ω (max) at +3V
o
Guaranteed < 0.1nA Leakage Current at
T
A
= +25°C
o
Single-Supply Operation from +2.0V to +11V
o
TTL/CMOS-Logic Compatible
o
-84dB Crosstalk (1MHz)
o
-72dB Off-Isolation (1MHz)
o
Low Power Consumption: 0.5nW (typ)
o
Rail-to-Rail Signal Handling
MAX4747–MAX4750
Ordering Information
PART
MAX4747EUD+
MAX4747ETE+
MAX4747EWE+T
TEMP
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-/BUMP-
PACKAGE
14 TSSOP
16 Thin QFN-EP*
16 WLP
Applications
Battery-Powered Systems
Audio/Video-Signal Routing
Low-Voltage Data-Acquisition Systems
Cell Phones
Communications Circuits
Glucose Meters
PDAs
*EP
= Exposed pad.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Ordering Information continued at end of data sheet.
Pin/Bump Configurations/Truth Tables
TOP VIEW
N.C.
NO1
TOP VIEW
(BUMPS SIDE DOWN)
MAX4747
IN1
1
2
3
4
+
16
V+
15
14
13
MAX4747
+
12
11
IN4
NO4
COM4
COM3
NO1 1
COM1 2
NO2 3
14 V+
13 IN1
12 IN4
11 NO4
10 COM4
9 COM3
8 NO3
D
C
B
A
COM1
NO2
COM2
IN2
COM1
NO2
COM2
IN2
1
2
3
4
NO1
V+
IN3
MAX4747ETE
*EP
10
9
COM2 4
IN2 5
IN3 6
IN1
GND
NO3
IN4
NO4
COM4
COM3
5
IN3
6
GND
7
NO3
8
N.C.
GND 7
TSSOP
WLP
INPUT
LOW
HIGH
SWITCH STATE
OFF
ON
TQFN
*CONNECT EP TO V+
Pin Configurations/Truth Tables continued at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
50
Ω
, Low-Voltage, Quad SPST/Dual SPDT Analog
Switches in WLP
MAX4747–MAX4750
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
V+ ...........................................................................-0.3V to +12V
IN_, COM_, NO_, NC_ (Note 1)....................-0.3V to (V+ + 0.3V)
Continuous Current (any pin) ...........................................±10mA
Peak Current (any pin, pulsed at 1ms, 10% duty cycle) ...±20mA
Continuous Power Dissipation (T
A
= +70°C)
14-Pin TSSOP (derate 9.1mW/°C above +70°C) .........727mW
16-Pin Thin QFN (derate 16.9mW/°C above +70°C) .....1349mW
16-Bump WLP (derate 7.3mW/°C above +70°C).........589mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Maximum Junction Temperature .....................................+150°C
Bump Temperature (soldering)
Infrared (15s) ...............................................................+220°C
Vapor Phase (60s) .......................................................+215°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1:
Signals on IN_, NO_, NC_, or COM_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to
maximum current rating.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +3V ±10%, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +3V, T
A
= +25°C.)
(Notes 3, 4)
PARAMETER
ANALOG SWITCH
Analog Signal Range
V
COM_
,
V
NO_
, V
NC_
+25°C
On-Resistance
R
ON
V+ = +2.7V, I
COM_
= 5mA,
V
NO_
or V
NC_
= +1.5V
V+ = +2.7V, I
COM_
= 5mA,
V
NO_
or V
NC_
= +1.5V
V+ = +2.7V, I
COM_
= 5mA,
V
NO_
or V
NC_
= +1V, +1.5V, +2V
V+ = +3.6V,
V
COM_
= +0.3V, +3V,
V
NO_
or V
NC_
= +3V, +0.3V
T
MIN
to
T
MAX
+25°C
∆R
ON
T
MIN
to
T
MAX
+25°C
On-Resistance Flatness
(Note 7)
R
FLAT(ON)
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
-0.1
-2
-0.1
-2
-0.2
-4
2.7
0.2
0
17
V+
50
60
3.5
4.5
9
11
+0.1
+2
+0.1
+2
+0.2
nA
+4
nA
nA
Ω
Ω
Ω
V
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
On-Resistance Matching
Between Channels
(Notes 5, 6)
NO_ or NC_ Off-Leakage Current
(Note 8)
COM_ Off-Leakage Current
(Note 8)
I
NO_(OFF),
I
NC_(OFF)
V+ = +3.6V,
I
COM_(OFF)
V
COM_
= +0.3V, +3V,
V
NO_
or V
NC_
= +3V, +0.3V
V+ = +3.6V,
V
COM_
= +0.3V, +3.0V,
V
NO_
or V
NC_
= +0.3V, +3V, or
unconnected
COM_ On-Leakage Current
(Note 8)
I
COM_(ON)
2
_______________________________________________________________________________________
50
Ω
, Low-Voltage, Quad SPST/Dual SPDT Analog
Switches in WLP
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
(V+ = +3V ±10%, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +3V, T
A
= +25°C.)
(Notes 3, 4)
PARAMETER
DYNAMIC
+25°C
Turn-On Time
t
ON
V
NO_
or V
NC_
= +1.5V,
R
L
= 300Ω, C
L
= 35pF, Figure 2
V
NO_
or V
NC_
= +1.5V,
R
L
= 300Ω, C
L
= 35pF, Figure 2
V
NO_
or V
NC_
= +1.5V,
R
L
= 300Ω, C
L
= 35pF, Figure 3
T
MIN
to
T
MAX
+25°C
Turn-Off Time
t
OFF
T
MIN
to
T
MAX
+25°C
t
BBM
T
MIN
to
T
MAX
1
7
250
-72
84
20
20
40
1.4
0.8
V
IN_
= 0V or V+
-1
2
V+ = +5.5V, V
IN_
= 0V or V+,
all switches on or off
0.0001
+0.005
+1
11
1
33
ns
24
57
150
170
60
70
ns
ns
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
MAX4747–MAX4750
Break-Before-Make
(MAX4749/MAX4750 Only)
(Note 8)
Charge Injection
On-Channel -3dB Bandwidth
Off-Isolation (Note 9)
Crosstalk (Note 10)
NO_ or NC_ Off-Capacitance
COM_ Off-Capacitance
COM_ On-Capacitance
LOGIC INPUT
Input Logic High
Input Logic Low
Input Leakage Current
POWER SUPPLY
Power-Supply Range
Positive Supply Current
Q
BW
V
ISO
V
CT
C
OFF
V
GEN
= 0V, R
GEN
= 0Ω, C
L
= 1.0nF,
+25°C
Figure 4
Signal = 0dBm, 50Ω in and out
f = 1MHz, V
NO_
= 1V
RMS
,
R
L
= 50Ω, C
L
= 5pF, Figure 5
f = 1MHz, V
NO_
= 1V
RMS
,
R
L
= 50Ω, C
L
= 5pF, Figure 6
f = 1MHz, Figure 7
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
pC
MHz
dB
dB
pF
pF
pF
V
V
µA
V
µA
C
COM_(OFF)
f = 1MHz, Figure 7
C
COM_(ON)
f = 1MHz, Figure 7
V
IH
V
IL
I
IN
V+
I+
_______________________________________________________________________________________
3
50
Ω
, Low-Voltage, Quad SPST/Dual SPDT Analog
Switches in WLP
MAX4747–MAX4750
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = +5V ±10%, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +5V, T
A
= +25°C.)
(Notes 3, 4)
PARAMETER
ANALOG SWITCH
Analog Signal Range
V
COM_
,
V
NO_
, V
NC_
R
ON
V+ = +4.5V,
I
COM_
= 5mA,
V
NO_
or V
NC_
= +3.0V
V+ = +4.5V, I
COM_
= 5mA,
V
NO_
or V
NC_
= +3.0V
V+ = +4.5V, I
COM_
= 5mA,
V
NO_
or V
NC_
= +1V, +2V, +3V
V+ = +5.5V,
V
COM_
= +1V, +4.5V,
V
NO_
or V
NC_
= +4.5V, +1V
+25°C
T
MIN
to
T
MAX
+25°C
∆R
ON
T
MIN
to
T
MAX
+25°C
On-Resistance Flatness
(Notes 7)
R
FLAT(ON)
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
+25°C
+25°C
1
9
250
-72
14
ns
19
-0.1
-2
-0.1
-2
-0.2
-4
2.2
0.1
0
8.2
V+
25
30
3
4
5
7
+0.1
+2
+0.1
+2
+0.2
nA
+4
nA
nA
Ω
Ω
Ω
V
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
On-Resistance
On-Resistance Matching
Between Channels
(Notes 5, 6)
NO_ or NC_ Off-Leakage Current
(Note 8)
I
NO_(OFF),
I
NC_(OFF)
COM_ Off-Leakage Current
(Note 8)
V+ = +5.5V,
I
COM_(OFF)
V
COM_
= +1V, +4.5V,
V
NO_
or V
NC_
= +4.5V, +1V
V+ = +5.5V,
V
COM_
= +1V, +4.5V,
V
NO_
or V
NC_
= +1V, +4.5V, or
unconnected
COM_ On-Leakage Current
(Note 8)
DYNAMIC
Turn-On Time
I
COM_(ON)
t
ON
V
NO_
or V
NC_
= +3.0V,
R
L
= 300Ω, C
L
= 35pF,
Figure 2
V
NO_
or V
NC_
= +3.0V,
R
L
= 300Ω, C
L
= 35pF,
Figure 2
V
NO_
or V
NC_
= +3.0V,
R
L
= 300Ω, C
L
= 35pF,
Figure 3
V
GEN
= 0V, R
GEN
= 0Ω,
C
L
= 1.0nF, Figure 4
Signal = 0dBm,
50Ω in and out
f = 1MHz, V
NO_
= 1V
RMS
,
R
L
= 50Ω, C
L
= 5pF, Figure 5
36
85
95
45
55
ns
ns
Turn-Off Time
t
OFF
Break-Before-Make
(MAX4749/MAX4750 Only)
(Note 8)
Charge Injection
On-Channel -3dB Bandwidth
Off-Isolation (Note 9)
t
BBM
Q
BW
V
ISO
pC
MHz
dB
4
_______________________________________________________________________________________
50
Ω
, Low-Voltage, Quad SPST/Dual SPDT Analog
Switches in WLP
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = +5V ±10%, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +5V, T
A
= +25°C.)
(Notes 3, 4)
PARAMETER
Crosstalk (Note 10)
NO_ or NC_ Off-Capacitance
COM_ Off-Capacitance
COM_ On-Capacitance
LOGIC INPUT
Input Logic High
Input Logic Low
Input Leakage Current
POWER SUPPLY
Power-Supply Range
Positive Supply Current
V+
I+
V+ = +5.5V, V
IN_
= 0V or V+,
all switches on or off
2
0.0001
11
1
V
µA
V
IH
V
IL
I
IN
V
IN_
= 0V or V+
-1
+0.005
2
0.8
+1
V
V
µA
SYMBOL
V
CT
C
OFF
CONDITIONS
f = 1MHz, V
NO_
= 1V
RMS
,
R
L
= 50Ω, C
L
= 5pF, Figure 6
f = 1MHz, Figure 7
T
A
+25°C
+25°C
+25°C
+25°C
MIN
TYP
-84
20
20
40
MAX
UNITS
dB
pF
pF
pF
MAX4747–MAX4750
C
COM_(OFF)
f = 1MHz, Figure 7
C
COM_(ON)
f = 1MHz, Figure 7
The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used
in this data sheet.
Note 4:
WLP parts are 100% tested at +25°C only, and are guaranteed by design over temperature. TSSOP and Thin QFN parts
are 100% tested at +85°C and guaranteed by design over temperature.
Note 5:
∆R
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 6:
WLP and Thin QFN on-resistance matching between channels is guaranteed by design.
Note 7:
Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal range.
Note 8:
Guaranteed by design.
Note 9:
Off-isolation = 20 log
10
(V
NO_
/V
COM_
), V
NO_
= output, V
COM_
= input to off switch.
Note 10:
Between any two switches.
Note 3:
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
COM
MAX4747–50-toc01
ON-RESISTANCE vs. V
COM
MAX4747–50-toc02
ON-RESISTANCE vs. V
COM
V+ = 3V
MAX4747–50-toc03
50
16
30
25
20
R
ON
(Ω)
15
10
T
A
= +85°C
T
A
= +25°C
V+ = 5V
T
A
= +85°C
T
A
= +25°C
40
V+ = 2V
R
ON
(Ω)
30
12
R
ON
(Ω)
8
20
V+ = 3V
10
V+ = 5V
V+ = 11V
0
0
2
4
6
V
COM
(V)
8
10
12
0
1
2
3
4
5
V
COM
(V)
4
T
A
= -40°C
5
0
0
0.5
1.0
1.5
V
COM
(V)
2.0
2.5
3.0
T
A
= -40°C
0
_______________________________________________________________________________________
5
Embedded System
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