General Description
The MAX4747MAX4750 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 50
(max) on-resistance (R
ON
), with 3.5
(max)
matching between channels and 9
(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 thin QFN (4mm x
4mm), and 16-bump chip-scale packages (UCSPTM). This
tiny chip-scale package occupies a 2mm
2mm area
and significantly reduces the required PC board area.
Applications
Battery-Powered Systems
Audio/Video-Signal Routing
Low-Voltage Data-Acquisition Systems
Cell Phones
Communications Circuits
Glucose Meters
PDAs
Features
2mm
2mm UCSP
Guaranteed On-Resistance (R
ON
)
25
(max) at +5V
50
(max) at +3V
On-Resistance Matching
3
(max) at +5V
3.5
(max) at +3V
Guaranteed <0.1nA Leakage Current at
T
A
= +25C
Single-Supply Operation from +2.0V to +11V
TTL/CMOS-Logic Compatible
-84dB Crosstalk (1MHz)
-72dB Off-Isolation (1MHz)
Low Power Consumption: 0.5nW (typ)
Rail-to-Rail Signal Handling
MAX4747MAX4750
50
Low-Voltage, Quad SPST/Dual SPDT Analog
Switches in UCSP
________________________________________________________________ Maxim Integrated Products
1
Ordering Information
19-2646; Rev 1; 6/04
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.
PART
TEMP
RANGE
PIN-/BUMP-
PACKAGE
TOP
MARK
MAX4747
EUD
-40C to +85C
14 TSSOP
--
MAX4747ETE
-40C to +85C
16 Thin QFN
--
MAX4747EBE-T
-40C to +85C
16 UCSP-16
4747
TOP VIEW
TOP VIEW
INPUT
SWITCH STATE
LOW
HIGH
OFF
ON
14
13
12
11
10
9
8
1
2
3
4
5
6
7
MAX4747
TSSOP
V+
IN1
IN4
NO4
COM4
COM3
NO3
COM2
NO2
COM1
NO1
GND
IN3
IN2
(BUMPS SIDE DOWN)
UCSP
1
A
B
C
D
2
3
4
NO2
COM2
IN2
COM1
NO1
V+
IN3
IN1
GND
NO3
IN4
NO4
COM4
COM3
16
15
14
13
NO1
V+
N.C.
IN1
9
10
11
12
COM3
COM4
NO4
IN4
4
3
2
1
IN2
COM2
NO2
COM1
5
6
7
8
IN3
GND
NO3
N.C.
MAX4747ETE
THIN QFN
Pin Configurations/Truth Tables
UCSP is a trademark of Maxim Integrated Products, Inc.
Pin Configurations/Truth Tables continued at end of data sheet.
Ordering Information continued at end of data sheet.
MAX4747MAX4750
50
Low-Voltage, Quad SPST/Dual SPDT Analog
Switches in UCSP
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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
= +25C.)
(Notes 3, 4)
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.
(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
= +70C)
14-Pin TSSOP (derate 6.3mW/C above +70C) .........500mW
16-Bump UCSP (derate 8.3mW/C above +70C) ......659mW
16-Pin Thin QFN (derate 16.9mW/C above +70C) .....1349mW
Operating Temperature Range ...........................-40C to +85C
Storage Temperature Range .............................-65C to +150C
Maximum Junction Temperature .....................................+150C
Bump Temperature (soldering)
Infrared (15s) ...............................................................+220C
Vapor Phase (60s) .......................................................+215C
Lead Temperature (soldering, 10s) .................................+300C
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.
PARAMETER
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog Signal Range
V
COM_
,
V
NO_
, V
NC_
0
V+
V
+25C
17
50
On-Resistance
R
ON
V+ = +2.7V, I
COM_
= 5mA,
V
NO_
or V
NC_
= +1.5V
T
MIN
to
T
MAX
60
+25C
0.2
3.5
On-Resistance Matching
Between Channels
(Notes 5, 6)
R
ON
V+ = +2.7V, I
COM_
= 5mA,
V
NO_
or V
NC_
= +1.5V
T
MIN
to
T
MAX
4.5
+25C
2.7
9
On-Resistance Flatness
(Note 7)
R
FLAT(ON)
V+ = +2.7V, I
COM_
= 5mA,
V
NO_
or V
NC_
= +1V, +1.5V, +2V
T
MIN
to
T
MAX
11
+25C
-0.1
+0.1
NO_ or NC_ Off-Leakage Current
(Note 8)
I
NO_(OFF),
I
NC_(OFF)
V+ = +3.6V,
V
COM_
= +0.3V, +3V,
V
NO_
or V
NC_
= +3V, +0.3V
T
MIN
to
T
MAX
-2
+2
nA
+25C
-0.1
+0.1
COM_ Off-Leakage Current
(Note 8)
I
COM_(OFF)
V+ = +3.6V,
V
COM_
= +0.3V, +3V,
V
NO_
or V
NC_
= +3V, +0.3V
T
MIN
to
T
MAX
-2
+2
nA
+25C
-0.2
+0.2
COM_ On-Leakage Current
(Note 8)
I
COM_(ON)
V+ = +3.6V,
V
COM_
= +0.3V, +3.0V,
V
NO_
or V
NC_
= +0.3V, +3V, or
floating
T
MIN
to
T
MAX
-4
+4
nA
MAX4747MAX4750
50
Low-Voltage, Quad SPST/Dual SPDT Analog
Switches in UCSP
_______________________________________________________________________________________
3
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
= +25C.)
(Notes 3, 4)
PARAMETER
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
DYNAMIC
+25C
57
150
Turn-On Time
t
ON
V
NO_
or V
NC_
= +1.5V,
R
L
= 300
, C
L
= 35pF, Figure 2
T
MIN
to
T
MAX
170
ns
+25C
24
60
Turn-Off Time
t
OFF
V
NO_
or V
NC_
= +1.5V,
R
L
= 300
, C
L
= 35pF, Figure 2
T
MIN
to
T
MAX
70
ns
+25C
33
Break-Before-Make
(MAX4749/MAX4750 Only)
(Note 8)
t
BBM
V
NO_
or V
NC_
= +1.5V,
R
L
= 300
, C
L
= 35pF, Figure 3
T
MIN
to
T
MAX
1
ns
Charge Injection
Q
V
GE N
= 0V , R
GE N
= 0, C
L
= 1.0nF,
Figure 4
+25C
7
pC
On-Channel -3dB Bandwidth
BW
Signal = 0dBm, 50
in and out
+25C
250
MHz
Off-Isolation (Note 9)
V
ISO
f = 1MHz, V
NO_
= 1V
RMS
,
R
L
= 50
, C
L
= 5pF, Figure 5
+25C
-72
dB
Crosstalk (Note 10)
V
CT
f = 1MHz, V
NO_
= 1V
RMS
,
R
L
= 50
, C
L
= 5pF, Figure 6
+25C
84
dB
NO_ or NC_ Off-Capacitance
C
OFF
f = 1MHz, Figure 7
+25C
20
pF
COM_ Off-Capacitance
C
COM_(OFF)
f = 1MHz, Figure 7
+25C
20
pF
COM_ On-Capacitance
C
COM_(ON)
f = 1MHz, Figure 7
+25C
40
pF
LOGIC INPUT
Input Logic High
V
IH
1.4
V
Input Logic Low
V
IL
0.8
V
Input Leakage Current
I
IN
V
IN_
= 0V or V+
-1
+0.005
+1
A
POWER SUPPLY
Power-Supply Range
V+
2
11
V
Positive Supply Current
I+
V+ = +5.5V, V
IN_
= 0V or V+,
all switches on or off
0.0001
1
A
MAX4747MAX4750
50
Low-Voltage, Quad SPST/Dual SPDT Analog
Switches in UCSP
4
_______________________________________________________________________________________
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
= +25C.)
(Notes 3, 4)
PARAMETER
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
ANALOG SWITCH
Analog Signal Range
V
COM_
,
V
NO_
, V
NC_
0
V+
V
+25C
8.2
25
On-Resistance
R
ON
V+ = +4.5V,
I
COM_
= 5mA,
V
NO_
or V
NC_
= +3.0V
T
MIN
to
T
MAX
30
+25C
0.1
3
On-Resistance Matching
Between Channels
(Notes 5, 6)
R
ON
V+ = +4.5V, I
COM_
= 5mA,
V
NO_
or V
NC_
= +3.0V
T
MIN
to
T
MAX
4
+25C
2.2
5
On-Resistance Flatness
(Notes 7)
R
FLAT(ON)
V+ = +4.5V, I
COM_
= 5mA,
V
NO_
or V
NC_
= +1V, +2V, +3V
T
MIN
to
T
MAX
7
+25C
-0.1
+0.1
NO_ or NC_ Off-Leakage Current
(Note 8)
I
NO_(OFF),
I
NC_(OFF)
V+ = +5.5V,
V
COM_
= +1V, +4.5V,
V
NO_
or V
NC_
= +4.5V, +1V
T
MIN
to
T
MAX
-2
+2
nA
+25C
-0.1
+0.1
COM_ Off-Leakage Current
(Note 8)
I
COM_(OFF)
V+ = +5.5V,
V
COM_
= +1V, +4.5V,
V
NO_
or V
NC_
= +4.5V, +1V
T
MIN
to
T
MAX
-2
+2
nA
+25C
-0.2
+0.2
COM_ On-Leakage Current
(Note 8)
I
COM_(ON)
V+ = +5.5V,
V
COM_
= +1V, +4.5V,
V
NO_
or V
NC_
= +1V, +4.5V, or
floating
T
MIN
to
T
MAX
-4
+4
nA
DYNAMIC
+25C
36
85
Turn-On Time
t
ON
V
NO_
or V
NC_
= +3.0V,
R
L
= 300
, C
L
= 35pF,
Figure 2
T
MIN
to
T
MAX
95
ns
+25C
19
45
Turn-Off Time
t
OFF
V
NO_
or V
NC_
= +3.0V,
R
L
= 300
, C
L
= 35pF,
Figure 2
T
MIN
to
T
MAX
55
ns
+25C
14
Break-Before-Make
(MAX4749/MAX4750 Only)
(Note 8)
t
BBM
V
NO_
or V
NC_
= +3.0V,
R
L
= 300
, C
L
= 35pF,
Figure 3
T
MIN
to
T
MAX
1
ns
Charge Injection
Q
V
GEN
= 0V, R
GEN
= 0,
C
L
= 1.0nF, Figure 4
+25C
9
pC
On-Channel -3dB Bandwidth
BW
Signal = 0dBm,
50
in and out
+25C
250
MHz
Off-Isolation (Note 9)
V
ISO
f = 1MHz, V
NO_
= 1V
RMS
,
R
L
= 50
, C
L
= 5pF, Figure 5
+25C
-72
dB
MAX4747MAX4750
50
Low-Voltage, Quad SPST/Dual SPDT Analog
Switches in UCSP
_______________________________________________________________________________________
5
Note 3:
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:
UCSP parts are 100% tested at +25C only, and are guaranteed by design over temperature. TSSOP and Thin QFN parts
are 100% tested at +85C and guaranteed by design over temperature.
Note 5:
R
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 6:
UCSP 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.
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
= +25C.)
(Notes 3, 4)
PARAMETER
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
Crosstalk (Note 10)
V
CT
f = 1MHz, V
NO_
= 1V
RMS
,
R
L
= 50
, C
L
= 5pF, Figure 6
+25C
-84
dB
NO_ or NC_ Off-Capacitance
C
OFF
f = 1MHz, Figure 7
+25C
20
pF
COM_ Off-Capacitance
C
COM_(OFF)
f = 1MHz, Figure 7
+25C
20
pF
COM_ On-Capacitance
C
COM_(ON)
f = 1MHz, Figure 7
+25C
40
pF
LOGIC INPUT
Input Logic High
V
IH
2
V
Input Logic Low
V
IL
0.8
V
Input Leakage Current
I
IN
V
IN_
= 0V or V+
-1
+0.005
+1
A
POWER SUPPLY
Power-Supply Range
V+
2
11
V
Positive Supply Current
I+
V+ = +5.5V, V
IN_
= 0V or V+,
all switches on or off
0.0001
1
A
Typical Operating Characteristics
(T
A
= +25C, unless otherwise noted.)
ON-RESISTANCE vs. V
COM
MAX474750-toc01
V
COM
(V)
R
ON
(
)
10
8
6
4
2
10
20
30
40
50
0
0
12
V+ = 2V
V+ = 3V
V+ = 5V
V+ = 11V
ON-RESISTANCE vs. V
COM
MAX474750-toc02
V
COM
(V)
R
ON
(
)
4
3
2
1
4
8
12
16
0
0
5
V+ = 5V
T
A
= +25
C
T
A
= -40
C
T
A
= +85
C
ON-RESISTANCE vs. V
COM
MAX474750-toc03
V
COM
(V)
R
ON
(
)
2.5
2.0
1.5
1.0
0.5
5
10
15
20
25
30
0
0
3.0
T
A
= +85
C
T
A
= +25
C
T
A
= -40
C
V+ = 3V
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