MAX4737/MAX4738/
MAX4739
General Description
4.5Ω Quad SPST Analog Switches in UCSP
Benefits and Features
●
USB 1.1 Signal Switching
● 2ns (max) Differential Skew
● -3dB Bandwidth: >300MHz
● Low 20pF On-Channel Capacitance
●
Low R
ON
• 4.5Ω (max) (+3V Supply)
• 3Ω (max) (+5V Supply)
● 0.4Ω (max) R
ON
Match (+3V Supply)
● 1.2Ω (max) R
ON
Flatness (+3V Supply)
● <0.5nA Leakage Current at +25°C
● High Off-Isolation: -55dB (10MHz)
● Low Crosstalk: -80dB (10MHz)
● Low Distortion: 0.03%
● +1.8V CMOS-Logic Compatible
●
Single-Supply Operation from +1.8V to +5.5V
●
Rail-to-Rail Signal Handling
The MAX4737/MAX4738/MAX4739 low-voltage, low on-
resistance (R
ON
), quad single-pole/single throw (SPST)
analog switches operate from a single +1.8V to +5.5V
supply. These devices are designed for USB 1.1 and
audio switching applications.
The MAX4737/MAX4738/MAX4739 feature 4.5Ω R
ON
(max) with 1.2Ω flatness and 0.4Ω matching between
channels. These new switches feature guaranteed
operation from +1.8V to +5.5V and are fully specified
at 3V and 5V. These switches offer break-before-make
switching (1ns) with t
ON
<80ns and t
OFF
<40ns at +2.7V.
The digital logic inputs are +1.8V logic compatible with a
+2.7V to +3.6V supply.
These switches are packaged in a chip-scale package
(UCSP™), significantly reducing the required PC board
area. The chip occupies only a 2mm x 2mm area and has
a 4 x 4 bump array with a bump pitch of 0.5mm. These
switches are also available in a 14-pin TSSOP and a
16-pin thin QFN (4mm x 4mm) package.
Applications
●
●
●
●
●
●
Battery-Operated Equipment
Audio/Video-Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Data-Acquisition Systems
Communications Circuits
UCSP is a trademark of Maxim Integrated Products, Inc.
19-2633; Rev 2; 1/16
MAX4737/MAX4738/
MAX4739
Absolute Maximum Ratings
4.5Ω Quad SPST Analog Switches in UCSP
(All Voltages Referenced to GND)
V+, IN_ .................................................................-0.3V
to +6.0V
COM_, NO_, NC_ (Note 1) .........................-0.3V
to (V+ + 0.3V)
Continuous Current COM_, NO_, NC_ ..........................±100mA
Peak Current COM_, NO_, NC_
(pulsed at 1ms, 10% duty cycle)
................................±200mA
Continuous Power Dissipation (T
A
= +70°C)
14-Pin TSSOP (derate 6.3mW/°C above +70°C)
........500mW
16-Bump UCSP (derate 8.3mW/°C above +70°C)
......659mW
16-Pin Thin QFN (derate 25mW/°C above +70°C)
...2000mW
ESD Method 3015.7
............................................................>2kV
Operating Temperature Range ...........................
-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................
-65°C to +150°C
Lead Temperature (soldering, 10s)
.................................
+300°C
Bump Temperature (soldering)
Infrared (15s) ...............................................................+220°C
Vapor Phase (60s)
.......................................................
+215°C
Note 1:
Signals on COM_, NO_, or NC_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to maxi-
mum 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+ = +2.7V to +3.6V, V
IH
= +1.4V, V
IL
= +0.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +3.0V,
T
A
= +25°C, unless otherwise noted.) (Notes 3, 4)
PARAMETER
Analog Signal Range
ANALOG SWITCH
On-Resistance (Note 5)
R
ON
V+ = 2.7V, I
COM_
= 10mA;
V
NO_
or V
NC_
= 1.5V
V+ = 2.7V, I
COM_
= 10mA;
V
NO_
or V
NC_
= 1.5V
V+ = 2.7V, I
COM_
= 10mA;
V
NO_
or V
NC_
= 1.0V, 1.5V, 2.0V
V+ = 3.6V, V
COM_
= 0.3V, 3.3V;
V
NO_
or V
NC_
= 3.3V, 0.3V
+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
-0.5
-1
-0.5
-1
-1
-2
+0.01
+0.01
+0.01
0.6
0.1
3.0
4.5
5
0.4
0.5
1.2
1.5
+0.5
+1
+0.5
+1
+1
+2
nA
nA
nA
Ω
Ω
Ω
SYMBOL
V
COM_
,
V
NO_
, V
NC_
CONDITIONS
T
A
MIN
0
TYP
MAX
V+
UNITS
V
On-Resistance Match Between
Channels (Notes 5, 6)
∆R
ON
On-Resistance Flatness (Note 7)
R
FLAT(ON)
NO_, NC_ Off-Leakage Current
(Note 8)
COM_ Off-Leakage Current
(Note 8)
COM_ On-Leakage Current
(Note 8)
I
NO_(OFF)
,
I
NC_(OFF)
V+ = 3.6V, V
COM_
= 0.3V, 3.3V;
I
COM_( OFF)
V
NO_
or V
NC_
= 3.3V, 0.3V
V+ = 3.6V, V
COM_
= 0.3V, 3.3V;
V
NO_
or V
NC_
= 0.3V, 3.3V, or
floating
I
COM_(ON)
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Maxim Integrated
│
2
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Electrical Characteristics—Single +3V Supply (continued)
(V+ = +2.7V to +3.6V, V
IH
= +1.4V, V
IL
= +0.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +3.0V,
T
A
= +25°C, unless otherwise noted.) (Notes 3, 4)
PARAMETER
DYNAMIC CHARACTERISTICS
Turn-On Time
t
ON
V
NO_
, V
NC_
= 1.5V;
R
L
= 300Ω, C
L
= 35pF, Figure 1
V
NO_
, V
NC_
= 1.5V;
R
L
= 300Ω, C
L
= 35pF, Figure 1
V
NO_
, V
NC_
= 1.5V;
R
L
= 300Ω, C
L
= 35pF, Figure 2
R
S
= 39Ω, C
L
= 50pF, Figure 3
V
GEN
= 2V, R
GEN
= 0Ω,
C
L
= 1.0nF, Figure 4
f = 10MHz; V
NO_
, V
NC_
= 1V
P-P
;
R
L
= 50Ω, C
L
= 5pF, Figure 5a
f = 1MHz; V
NO_
, V
NC_
= 1V
P-P
;
R
L
= 50Ω, C
L
= 5pF, Figure 5a
f = 10MHz; V
NO_
, V
NC_
= 1V
P-P
;
R
L
= 50Ω, C
L
= 5pF, Figure 5b
f = 1MHz; V
NO_
, V
NC_
= 1V
P-P
;
R
L
= 50Ω, C
L
= 5pF, Figure 5b
Signal = 0dBm, C
L
= 5pF, 50Ω in
and out, Figure 5a
R
L
= 600Ω
+25°C
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
T
MIN
to
T
MAX
+25°C
1
0.15
5
-55
+25°C
-80
-80
+25°C
-110
+25°C
+25°C
+25°C
+25°C
T
MIN
to
T
MAX
T
MIN
to
T
MAX
V+ = 3.6V, V
IN
_ = 0 or 5.5V
T
MIN
to
T
MAX
-0.1
300
0.03
9
15
MHz
%
pF
pF
dB
dB
2
8
ns
20
40
80
100
40
50
ns
ns
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
Turn-Off Time
t
OFF
Break-Before-Make Time Delay
(MAX4739 Only) (Note 8)
Skew (Note 8)
Charge Injection
t
BBM
t
SKEW
Q
ns
pC
Off-Isolation (Note 9)
V
ISO
Crosstalk (Note 10)
V
CT
On-Channel -3dB Bandwidth
Total Harmonic Distortion
NO_, NC_ Off-Capacitance
Switch On-Capacitance
DIGITAL I/O
Input Logic High Voltage
Input Logic Low Voltage
Input Leakage Current
BW
THD
C
NO_(OFF)
,
f = 1MHz, Figure 6
C
NC_(OFF)
C
ON
f = 1MHz, Figure 6
V
IH
V
IL
I
IN
1.4
0.5
+0.1
V
V
µA
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Maxim Integrated
│
3
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Electrical Characteristics—Single +3V Supply (continued)
(V+ = +2.7V to +3.6V, V
IH
= +1.4V, V
IL
= +0.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +3.0V,
T
A
= +25°C, unless otherwise noted.) (Notes 3, 4)
PARAMETER
SUPPLY
Supply Voltage Range
Positive Supply Current
V+
I+
V+ = 5.5V, V
IN
_ = 0V or V+
T
MIN
to
T
MAX
T
MIN
to
T
MAX
1.8
5.5
1
V
µA
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
Electrical Characteristics—Single +5V Supply
(V+ = +4.2V to +5.5V, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +5.0V,
T
A
= +25°C, unless otherwise noted.) (Notes 3, 4)
PARAMETER
Analog Signal Range
ANALOG SWITCH
On-Resistance (Note 5)
R
ON
V+ = 4.2V; I
COM_
= 10mA;
V
NO_
or V
NC_
= 3.5V
V+ = 4.2V; I
COM_
= 10mA;
V
NO_
or V
NC_
= 3.5V
V+ = 4.2V; I
COM_
= 10mA;
V
NO_
or V
NC_
= 1.0V, 2.0V, 3.5V
V+ = 5.5V; V
COM_
= 1.0V, 4.5V;
V
NO_
or V
NC_
= 4.5V, 1.0V
+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
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
20
-0.5
-1
-0.5
-1
-1
-2
0.01
0.01
0.01
0.4
0.1
1.7
3.0
3.5
0.3
0.4
1.2
1.5
+0.5
+1
+0.5
+1
+1
+2
nA
nA
nA
Ω
Ω
Ω
SYMBOL
V
COM_
,
V
NO_
, V
NC_
CONDITIONS
T
A
T
MIN
to
T
MAX
MIN
0
TYP
MAX
V+
UNITS
V
On-Resistance Match Between
Channels (Notes 5, 6)
∆R
ON
On-Resistance Flatness (Note 7)
R
FLAT(ON)
NO_, NC_ Off-Leakage Current
(Note 8)
COM_ Off-Leakage Current
(Note 8)
COM_ On-Leakage Current
(Note 8)
DYNAMIC CHARACTERISTICS
Turn-On Time
I
NO_(OFF)
,
I
NC_(OFF)
V+ = 5.5V; V
COM_
= 1V, 4.5V;
I
COM_ (OFF)
V
NO_
or V
NC_
= 4.5V, 1V
V+ = 5.5V; V
COM_
= 1.0V, 4.5V;
V
NO_
or V
NC_
= 1.0V, 4.5V, or
floating
I
COM_(ON)
t
ON
V
NO_
, V
NC_
= 3.0V;
R
L
= 300Ω, C
L
= 35pF, Figure 1
V
NO_
, V
NC_
= 3.0V;
R
L
= 300Ω, C
L
= 35pF, Figure 1
30
80
100
40
50
ns
ns
Turn-Off Time
t
OFF
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Maxim Integrated
│
4
MAX4737/MAX4738/
MAX4739
4.5Ω Quad SPST Analog Switches in UCSP
Electrical Characteristics—Single +5V Supply (continued)
(V+ = +4.2V to +5.5V, V
IH
= +2.0V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +5.0V,
T
A
= +25°C, unless otherwise noted.) (Notes 3, 4)
PARAMETER
Break-Before-Make Time Delay
(MAX4739 Only) (Note 8)
Skew (Note 8)
DIGITAL I/O
Input Logic High Voltage
Input Logic Low Voltage
Input Leakage Current
POWER SUPPLY
Power-Supply Range
Positive Supply Current
V+
I+
V+ = 5.5V, V
IN_
= 0V or V+
T
MIN
to
T
MAX
T
MIN
to
T
MAX
1.8
5.5
1
V
µA
V
IH
V
IL
I
IN
V+ = 5.5V, V
IN_
= 0V or V+
T
MIN
to
T
MAX
T
MIN
to
T
MAX
T
MIN
to
T
MAX
-0.1
2.0
0.8
+0.1
V
V
µA
SYMBOL
t
BBM
CONDITIONS
V
NO_
, V
NC_
= 3.0V;
R
L
= 300Ω, C
L
= 35pF, Figure 2
R
S
= 39Ω, C
L
= 50pF, Figure 3
T
A
+25°C
T
MIN
to
T
MAX
T
MIN
to
T
MAX
1
0.15
2
MIN
TYP
8
ns
MAX
UNITS
t
SKEW
ns
Note 3:
UCSP parts are 100% tested at +25°C only, and guaranteed by design over the specified temperature range. TSSOP and
thin QFN parts are 100% tested at T
MAX
and guaranteed by design over the specified temperature range.
Note 4:
The algebraic convention used in this data sheet is where the most negative value is a minimum and the most positive
value is a maximum.
Note 5:
Guaranteed by design for UCSP and thin QFN parts.
Note 6:
ΔR
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 7:
Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 8:
Guaranteed by design.
Note 9:
Off-Isolation = 20log
10
(V
COM
/ V
NO
), V
COM
= output, V
NO
= input to off switch.
Note 10:
Between any two switches.
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