19-2942; Rev 0; 8/03
0.5
Ω
, Quad SPDT Switches in UCSP/QFN
General Description
The MAX4754/MAX4755/MAX4756 low on-resistance,
analog switches operate from a single +1.8V to +5.5V
supply. The MAX4754 and MAX4755 are dual, double-
pole, double-throw (DPDT) switches. The MAX4756 is a
quad, single-pole double-throw (SPDT) switch. They
are configured to route either audio or data signals.
The MAX4754 has four 0.5Ω SPDT switches for audio-
signal routing and two logic control inputs. The
MAX4755 has four 0.5Ω SPDT switches (with two
switches that have an additional 11Ω series resistor at
the NC terminals). This allows users to drive an 8Ω
speaker as a 32Ω load (ear speaker). The MAX4756
has four 0.5Ω SPDT switches controlled by one logic
control input and an enable pin (EN) to disable the
switches.
The MAX4754/MAX4755/MAX4756 are available in a
space-saving 16-pin thin QFN and a tiny 16-bump 2mm
x 2mm chip-scale package (UCSP™).
♦
Data and Audio-Signal Routing
♦
Low R
ON
(0.5Ω) Audio Switches
♦
0.1Ω Channel-to-Channel Matching
♦
0.2Ω On-Resistance Flatness
♦
0.02% THD
♦
+1.8V to +5.5V Supply Range
♦
Rail-to-Rail Signal Handling
♦
16-Bump UCSP (2mm x 2mm)
Features
MAX4754/MAX4755/MAX4756
Ordering Information
PART
MAX4754EBE-T
MAX4754ETE
MAX4755ETE*
MAX4756ETE*
TEMP RANGE PIN-PACKAGE
-40°C to +85°C 16 UCSP-16
-40°C to +85°C 16 Thin QFN (4mm x 4mm)
-40°C to +85°C 16 Thin QFN (4mm x 4mm)
-40°C to +85°C 16 Thin QFN (4mm x 4mm)
Applications
Speaker-Headset Switching
Audio-Signal Routing
Cellular Phones
PDAs/Hand-Held Devices
Notebook Computers
UCSP is a trademark of Maxim Integrated Products, Inc.
MAX4755EBE-T*
-40°C to +85°C 16 UCSP-16
MAX4756EBE-T*
-40°C to +85°C 16 UCSP-16
*Future
product—contact factory for availability.
Pin Configurations appear at end of data sheet.
Functional Diagrams
INA
NO1
COM1
COM2
INA
NO1
11Ω
NC1
NO2
11Ω
NC2
NO3
COM3
COM4
NC2
NO3
COM3
COM4
NC2
NO3
COM3
COM4
COM1
COM2
INA
NO1
COM1
COM2
NC1
NO2
NC1
NO2
NC3
NO4
NC3
NO4
NC3
NO4
NC4
INB
NC4
INB
NC4
EN
MAX4754
MAX4755
MAX4756
________________________________________________________________
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.
0.5
Ω
, Quad SPDT Switches in UCSP/QFN
MAX4754/MAX4755/MAX4756
ABSOLUTE MAXIMUM RATINGS
(All Voltages Referenced to GND)
V+, IN_,
EN...............................................................-0.3V
to +6V
COM_, NO_, NC_ (Note 1) ...........................-0.3V to (V+ + 0.3V)
Continuous Current
NC1, NC2, COM1, COM2 (MAX4755)........................±100mA
NO_, NC_, COM_ (remaining terminal connections) ....±300mA
Peak Current NC1, NC2, COM1, COM2 (MAX4755)
(Pulsed at 1ms, 10% duty cycle)................................±200mA
(Pulsed at 1ms, 50% duty cycle)................................±150mA
Peak Current NO_, NC_,
COM__ (remaining terminal connections)
(Pulsed at 1ms, 10% duty cycle)............................±500mA
(Pulsed at 1ms, 50% duty cycle)............................±400mA
Continuous Power Dissipation (T
A
= +70°C)
16-Bump UCSP (derate 8.2mW/°C above +70°C) ......660mW
16-Pin Thin QFN (derate 16.9mW/°C above +70°C) .1349mW
ESD per Method 3015.7...................................................±2kV
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Bump Temperature (soldering)
Infrared (15s) ...............................................................+220°C
Vapor Phase (60s) .......................................................+215°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1:
Signals on NO_, NC_, 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
(V+ = +2.7V to +5.25V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at +3V and T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
V
COM_
,
V
NO_,
V
NC_
V+ = 2.7V,
I
COM_
= 10mA,
V
NC
_ = 0V, or
V
NC
_ = V+
(Note 4)
MAX4755
(NO1, NO2, N_3, N_4),
MAX4754/MAX4756
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
MAX4755 (NC1, NC2)
T
MIN
to
T
MAX
+25°C
T
MIN
to
T
MAX
+25°C
MAX4755 (NC1, NC2)
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
-3
-10
-3
-10
±0.01
0.2
0.2
8.0
0.1
11.5
12.5
0.35
0.55
0.4
0.55
0.4
Ω
Ω
0
0.5
V+
0.85
1.0
Ω
V
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
On-Resistance
R
ON
On-Resistance Match
Between Channels
∆R
ON
V+ = 2.7V,
I
COM
_ = 10mA,
V
NO
_ = 1.5V, or
V
NC
_ = 1.5V
(Notes 4, 5)
V+ = 3V,
I
COM_
= 10mA,
V
NO_
= 0V, or
V
NC_
= V+
(Note 6)
MAX4755
(NO1, NO2, N_3, N_4)
MAX4754/MAX4756
On-Resistance Flatness
R
FLAT(ON)
MAX4755
(NO1, NO2, N_3, N_4,
NO1, NO2),
MAX4754/MAX4756
0.55
NO_, NC_ Off-Leakage
Current
I
NO_(OFF),
I
NC_(OFF)
V+ = 3.6V;
V
COM_
= 3.3V, 0.3V;
V
NO_
or V
NC_
= 0.3V, 3.3V
+3
+10
+3
+10
nA
nA
COM_ Off-Leakage
Current
V+ = 3.6V (MAX4756);
I
COM_(OFF)
V
COM_
= 3.3V, 0.3V;
V
NO_
or V
NC_
= 0.3V, 3.3V
2
_______________________________________________________________________________________
0.5
Ω
, Quad SPDT Switches in UCSP/QFN
ELECTRICAL CHARACTERISTICS (Continued)
(V+ = +2.7V to +5.25V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at +3V and T
A
= +25°C.) (Notes 2, 3)
PARAMETER
COM_ On-Leakage
Current
DYNAMIC
+25°C
Turn-On Time
t
ON
V+ = 2.7V, V
NO_,
or V
NC_
= 1.5V;
R
L
= 50Ω; C
L
= 35pF, Figure 1
V+ = 2.7V, V
NO_,
or V
NC_
= 1.5V;
R
L
= 50Ω; C
L
= 35pF, Figure 1
V+ = 2.7V, V
NO_,
or V
NC_
= 1.5V;
R
L
= 50Ω, C
L
= 35pF, Figure 2 (Note 7)
V
GEN
= 0V, R
GEN
= 0, C
L
= 1.0nF, Figure 3
Signal = 0dBm, C
L
= 50pF, R
L
= 50Ω,
C
L
= 5pF, R
L
= 50Ω, V
COM
_ = 1V
P-P
f = 100kHz, Figure 4 (Note 8)
C
L
= 5pF, R
L
= 50Ω, V
COM
_ = 1V
P-P
f = 100kHz, Figure 4 (Note 9)
f = 20Hz to 20kHz, 1V
P-P
,
R
L
= 32Ω
T
MIN
to
T
MAX
+25°C
Turn-Off Time
t
OFF
T
MIN
to
T
MAX
+25°C
Break-Before-Make
Charge Injection
On-Channel -3dB
Bandwidth
Off-Isolation
Crosstalk
Total Harmonic
Distortion
NO_, NC_ Off-
Capacitance
COM_ Off-Capacitance
COM_ On-Capacitance
DIGITAL I/O (IN_,
EN)
V+ = 2.7V to 3.6V
Input Logic High
V
IH
V+ = 3.6V to 5.25V
V+ = 2.7V to 3.6V
Input Logic Low
V
IL
V+ = 3.6V to 5.25V
Input Leakage Current
I
IN
V
IN
= 0V or V+
T
MIN
to
T
MAX
T
MIN
to
T
MAX
T
MIN
to
T
MAX
T
MIN
to
T
MAX
T
MIN
to
T
MAX
1.4
V
2.0
0.5
V
0.6
1
µA
t
BBM
Q
BW
V
ISO
V
CT
THD
T
MIN
to
T
MAX
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
2
50
325
-120
-120
0.02
65
110
168
15
ns
pC
MHz
dB
dB
%
pF
pF
pF
25
45
140
150
50
60
ns
ns
SYMBOL
I
COM_(ON)
CONDITIONS
V+ = 3.6V;
V
COM_
= 3.3V, 0.3V;
V
NO_
or V
NC_
= 3.3V, 0.3V or floating
T
A
+25°C
T
MIN
to
T
MAX
MIN
-3
-10
TYP
MAX
+3
+10
nA
UNITS
MAX4754/MAX4755/MAX4756
C
NO_(OFF)
, V
NO
, V
NC_
= GND,
C
NC_(OFF)
f = 1MHz, V
COM
- = 0.5V
P-P
, Figure 5
C
COM_(OFF)
C
(ON)
V
COM_
= GND, f = 1MHz, MAX4756,
Figure 5
V
COM_
= V
NO
, V
NC_
= GND, f = 1MHz,
V
COM
- = 0.5V
P-P
, Figure 5
_______________________________________________________________________________________
3
0.5
Ω
, Quad SPDT Switches in UCSP/QFN
MAX4754/MAX4755/MAX4756
ELECTRICAL CHARACTERISTICS (Continued)
(V+ = +2.7V to +5.25V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at +3V and T
A
= +25°C.) (Notes 2, 3)
PARAMETER
POWER SUPPLY
Power-Supply Range
V+
T
MIN
to
T
MAX
+25°C
Positive-Supply Current
I+
V+ = 5.5V, V
IN_
= 0V or V+
T
MIN
to
T
MAX
1.8
0.001
1.0
µA
5.5
V
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
Note 2:
The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3:
UCSP parts are 100% tested at +25°C and limits across the full temperature range are guaranteed by correlation and
design. Thin QFN parts are 100% tested at +85°C and limits across the full temperature range are guaranteed by correla-
tion and design.
Note 4:
R
ON
and
∆R
ON
matching specifications are guaranteed by design.
Note 5:
∆R
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 6:
Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges.
Note 7:
Guaranteed by design, not production tested.
Note 8:
Off-Isolation = 20log
10
[V
COM
/ (V
NO
or V
NC
)], V
COM
= output, V
NO
or V
NC
= input to off switch.
Note 9:
Between any two switches.
4
_______________________________________________________________________________________
0.5
Ω
, Quad SPDT Switches in UCSP/QFN
MAX4754/MAX4755/MAX4756
Typical Operating Characteristics
(V+ = 3V, T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
COM
MAX4754-56 toc01
ON-RESISTANCE
vs. V
COM
AND TEMPERATURE
MAX4754-56 toc02
ON-RESISTANCE
vs. V
COM
AND TEMPERATURE
0.9
0.8
0.7
R
ON
(Ω)
0.6
0.5
0.4
0.3
T
A
= +85°C
T
A
= +25°C
V+ = +5V
MAX4754-56 toc03
2.0
1.8
1.6
1.4
R
ON
(Ω)
1.2
1.0
0.8
0.6
0.4
0.2
0
0
V+ = +3.0V
V+ = +5V
V+ = +2.3V
V+ = +2.5V
V+ = +2V
V+ = +1.8V
1.0
0.9
0.8
0.7
R
ON
(Ω)
0.6
0.5
0.4
0.3
0.2
0.1
0
0
0.5
1.0
1.5
V
COM
(V)
2.0
2.5
T
A
= -40°C
V+ = +3V
T
A
= +85°C
T
A
= +25°C
1.0
0.2
0.1
0
3.0
0
T
A
= -40°C
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
COM
(V)
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
COM
(V)
ON-RESISTANCE vs. V
COM
MAX4754-56 toc04
ON-RESISTANCE
vs. V
COM
AND TEMPERATURE
MAX4754-56 toc05
ON-RESISTANCE
vs. V
COM
AND TEMPERATURE
V+ = +5V
12.5
12.0
MAX4755 NC1, NC2
CHANNELS
MAX4754-56 toc06
13.0
MAX4755 NC1, NC2 CHANNELS
12.5
12.0
R
ON
(Ω)
11.5
11.0
10.5
10.0
0
V+ = +3.0V
V+ = +5V
V+ = +1.8V
V+ = +2V
13.0
V+ = +3V
12.5
12.0
R
ON
(Ω)
11.5
11.0
10.5
10.0
T
A
= +85°C
MAX4755 NC1, NC2
CHANNELS
13.0
V+ = +2.3V
V+ = +2.5V
R
ON
(Ω)
T
A
= +25°C
11.5
11.0
10.5
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
0
0.5
1.0
1.5
V
COM
(V)
2.0
2.5
3.0
T
A
= -40°C
10.0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
COM
(V)
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
V
COM
(V)
NO/NC OFF-LEAKAGE CURRENT
vs. TEMPERATURE
MAX4754-56 toc07
COM ON-LEAKAGE CURRENT
vs. TEMPERATURE
V+ = 5V
COM ON-LEAKAGE CURRENT (nA)
MAX4754-56 toc08
100
V+ = 5V
NO/NC OFF-LEAKAGE CURRENT (nA)
100
10
10
1
1
0.1
-40
-15
10
35
60
85
TEMPERATURE (°C)
0.1
-40
-15
10
35
60
85
TEMPERATURE (°C)
_______________________________________________________________________________________
5
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