19-1717; Rev 3; 2/09
Fast, Low-Voltage, 4
Ω
,
4-Channel CMOS Analog Multiplexer
General Description
The MAX4634 fast, low-voltage, 4-channel CMOS ana-
log multiplexer features 4Ω (max) on-resistance (R
ON
).
It offers R
ON
matching between switches to 0.3Ω (max)
and R
ON
flatness of 1Ω (max) over the specified signal
range. Each switch can handle V+ to GND analog sig-
nals. Off-leakage current is only 0.1nA (max) at +25°C.
The MAX4634 features fast turn-on (t
ON
) and turn-off
(t
OFF
) times of 18ns and 11ns, respectively. All this
comes in the tiny 10-pin µMAX
®
and 10-pin, 3mm x
3mm, TDFN packages.
This low-voltage multiplexer operates from a +1.8V to
+5.5V single supply. All digital inputs have +0.8V and
+2.4V logic thresholds, ensuring TTL/CMOS-logic com-
patibility with +5V operation.
♦
Guaranteed R
ON
2.5Ω (typ) with 5V Supply
4.5Ω (typ) with 3V Supply
♦
0.3Ω (max) Guaranteed R
ON
Match Between
Channels
♦
1Ω (max) Guaranteed R
ON
Flatness Over Signal
Range
♦
0.1nA (at +25°C) Guaranteed Low Leakage
Currents
♦
+1.8V to +5.5V Single-Supply Operation
♦
+1.8V Operation
R
ON
= 30Ω (typ) Overtemperature
t
ON
= 30ns (typ), t
OFF
= 13ns (typ)
♦
V+ to GND Signal Handling
♦
TTL/CMOS-Logic Compatible
Features
MAX4634
________________________Applications
Battery-Operated Equipment
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
♦
-78dB Crosstalk (at 1MHz)
♦
-80dB Off-Isolation (at 1MHz)
♦
0.018% Total Harmonic Distortion
Ordering Information
PART
MAX4634EUB
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
10 TDFN-EP*
(3mm x 3mm)
TOP
MARK
—
AAU
µMAX is a registered trademark of Maxim Integrated Products, Inc.
MAX4634ETB
*EP
= Exposed pad.
Pin Configurations/Functional Diagrams/Truth Table
TOP VIEW
MAX4634EUB
A0 1
NO1
GND
NO3
EN
2
3
4
5
LOGIC
10 A1
9
8
7
6
NO2
COM
NO4
V+
A1
X
0
0
1
1
A0
X
0
1
0
1
EN
0
1
1
1
1
ON SWITCH
NONE
1
2
3
4
A0 1
NO1
GND
NO3
EN
2
3
4
5
MAX4634ETB
LOGIC
10 A1
9
8
7
*EP
6
NO2
COM
NO4
V+
µMAX
X = DON'T CARE
TDFN
*EP = EXPOSED PAD
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Fast, Low-Voltage, 4
Ω
,
4-Channel CMOS Analog Multiplexer
MAX4634
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND.)
V+ .............................................................................-0.3V to +6V
A_, EN, COM, NO_ (Note 1) .........................-0.3V to (V+ + 0.3V)
Continuous Current (all other pins) ..................................±20mA
Continuous Current (COM, NO_) .....................................±50mA
Peak Current (COM, NO_ pulsed at 1ms,
10% duty cycle) ........................................................±100mA
Continuous Power Dissipation (T
A
= +70°C)
10-Pin µMAX (derate 4.1mW/°C above +70°C) ..........330mW
10-Pin TDFN (derate 24.4mW/°C
above +70°C)............................................................1951mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
Note 1:
Signals on NO_, COM, EN, or A_ 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 +5V Supply
(V+ = +4.5V to +5.5V, V
IH
= 2.4V, V
IL
= 0.8V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +5V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
V
COM
,
V
NO_
R
ON
V+ = 4.5V,
I
COM
= 10mA,
V
NO_
= 0 to V+
V+ = 4.5V,
I
COM
= 10mA,
V
NO_
= 0 to V+
V+ = 4.5V,
I
COM
= 10mA,
V
NO_
= 0 to V+
V+ = 5.5V;
V
COM
= 1V, 4.5V;
V
NO_
= 4.5V, 1V
V+ = 5.5V;
V
COM
= 1V, 4.5V;
V
NO_
= 4.5V, 1V
V+ = 5.5V;
V
COM
= 1V, 4.5V;
V
NO_
= 1V, 4.5V,
or unconnected
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-0.1
-0.3
-0.1
-0.65
-0.1
-0.65
±0.01
±0.01
±0.01
0.75
0.1
0
2.5
V+
4
Ω
4.5
0.3
Ω
0.4
1
Ω
1.2
+0.1
nA
+0.3
+0.1
nA
+0.65
+0.1
nA
+0.65
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
On-Resistance
On-Resistance Match
Between Channels
(Notes 4, 5)
On-Resistance Flatness
(Note 6)
ΔR
ON
R
FLAT(ON)
NO_ Off-Leakage
Current (Note 7)
I
NO_(OFF)
COM Off-Leakage Current
(Note 7)
I
COM(OFF)
COM On-Leakage Current
(Note 7)
DIGITAL
INPUTS
EN)
I/O (A_,
Input Logic-High
Input Logic-Low
Input Logic Current
I
COM(ON)
V
IH
V
IL
2.4
0.8
-100
5
+100
V
V
nA
2
_______________________________________________________________________________________
Fast, Low-Voltage, 4
Ω
,
4-Channel CMOS Analog Multiplexer
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = +4.5V to +5.5V, V
IH
= 2.4V, V
IL
= 0.8V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +5V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
DYNAMIC
Turn-On Time (Note 7)
t
ON
V
NO_
= 3V,
R
L
= 300Ω,
C
L
= 35pF, Figure 2
V
NO_
= 3V,
R
L
= 300Ω,
C
L
= 35pF, Figure 2
V
NO_
= 3V,
R
L
= 300Ω,
C
L
= 35pF, Figure 3
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
f = 10MHz
f = 1MHz
f = 10MHz
f = 1MHz
1
2
-57
-80
-52
-78
13
52
68
0.018
1.8
V+ = 5.5V, V
IH
= V+, V
IL
= 0
0.001
5.5
1.0
pC
dB
dB
pF
pF
pF
%
V
µA
8
ns
6
14
18
ns
20
11
ns
13
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX4634
Turn-Off Time (Note 7)
t
OFF
Break-Before-Make Time
(Note 7)
Charge Injection
Off-Isolation (Note 8)
Crosstalk (Note 9)
NO_ Off-Capacitance
COM Off-Capacitance
COM On-Capacitance
Total Harmonic Distortion
POWER SUPPLY
Power-Supply Range
Positive Supply Current
t
BBM
Q
V
ISO
V
CT
C
NO_(OFF)
C
COM(OFF)
C
COM(ON)
THD
V+
I+
V
GEN
= 2V, R
GEN
= 0, C
L
= 5pF, Figure 4
C
L
= 5pF, R
L
= 50Ω,
Figure 5
C
L
= 5pF, R
L
= 50Ω,
Figure 5
Figure 6
Figure 6
C
L
= 5pF, Figure 6
R
L
= 600Ω, f = 20Hz to 20kHz
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +2.7V to +3.3V, V
IH
= 2.0V, V
IL
= 0.4V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +3V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
V
COM
,
V
NO_
R
ON
V+ = 2.7V,
I
COM
= 10mA,
V
NO_
= 0 to V+
V+ = 2.7V,
I
COM
= 10mA,
V
NO_
= 0 to V+
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
0.1
0
4.5
V+
7
Ω
8
0.3
Ω
0.4
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
On-Resistance
On-Resistance Match
Between Channels
(Notes 4, 5)
ΔR
ON
_______________________________________________________________________________________
3
Fast, Low-Voltage, 4
Ω
,
4-Channel CMOS Analog Multiplexer
MAX4634
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
(V+ = +2.7V to +3.3V, V
IH
= 2.0V, V
IL
= 0.4V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +3V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
On-Resistance Flatness
(Note 6)
SYMBOL
R
FLAT(ON)
V+ = 2.7V,
I
COM
= 10mA,
V
NO_
= 0 to V+
V+ = 3.3V;
V
COM
= 1V, 3V;
V
NO_
= 3V, 1V
V+ = 3.3V;
V
COM
= 1V, 3V;
V
NO_
= 3V, 1V
V+ = 3.3V;
V
COM
= 1V, 3V;
V
NO_
= 1V, 3V, or
unconnected
CONDITIONS
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-0.1
-0.3
-0.1
-0.65
-0.1
-0.65
±0.01
±0.01
±0.01
MIN
TYP
1.2
MAX
2.5
Ω
3
+0.1
nA
+0.3
+0.1
nA
+0.65
+0.1
nA
+0.65
UNITS
NO_ Off-Leakage Current
(Note 7)
I
NO_(OFF)
COM Off-Leakage Current
(Note 7)
I
COM(OFF)
COM On-Leakage Current
(Note 7)
DIGITAL I/O (A_, EN)
Input High
Input Low
Input Logic Current
DYNAMIC
Turn-On Time (Note 7)
I
COM(ON)
V
IH
V
IL
2.0
0.4
-100
5
+100
V
V
nA
t
ON
V
NO_
= 2V,
C
L
= 35pF,
R
L
= 300Ω, Figure 2
V
NO_
= 2V,
C
L
= 35pF,
R
L
= 300Ω, Figure 2
V
NO_
= 2V,
C
L
= 35pF,
R
L
= 300Ω, Figure 3
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
f = 10MHz
f = 1MHz
f = 10MHz
f = 1MHz
1
16
22
ns
24
8
14
ns
16
Turn-Off Time (Note 7)
t
OFF
Break-Before-Make Time
(Note 7)
Charge Injection
Off-Isolation (Note 8)
Crosstalk (Note 9)
9
ns
2
-57
-80
-52
-78
pC
dB
dB
t
BBM
Q
V
ISO
V
CT
V
GEN
= 1.5V, R
GEN
= 0, C
L
= 5pF, Figure 4
C
L
= 5pF, R
L
= 50Ω,
Figure 5
C
L
= 5pF, R
L
= 50Ω,
Figure 5
4
_______________________________________________________________________________________
Fast, Low-Voltage, 4
Ω
,
4-Channel CMOS Analog Multiplexer
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
(V+ = +2.7V to +3.3V, V
IH
= 2.0V, V
IL
= 0.4V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +3V,
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
NO_ Off-Capacitance
COM Off-Capacitance
COM On-Capacitance
Total Harmonic Distortion
POWER SUPPLY
Positive Supply Current
I+
V+ = 3.3V, V
IH
= V+, V
IL
= 0
0.001
1
µA
SYMBOL
C
NO_(OFF)
C
COM(OFF)
C
(ON)
THD
CONDITIONS
V
NO_
= GND, f = 1MHz, Figure 6
V
COM
= GND, f = 1MHz, Figure 6
V
COM
= V
NO_
= GND, f = 1MHz, Figure 6
R
L
= 600Ω, f = 20Hz to 20kHz
MIN
TYP
13
52
68
0.018
MAX
UNITS
pF
pF
pF
%
MAX4634
Note 2:
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 3:
TDFN parts are tested at +25°C and guaranteed by design and correlation over the entire temperature range.
Note 4:
ΔR
ON
= R
ON(MAX)
- R
ON(MIN)
.
Note 5:
R
ON
and
ΔR
ON
matching specifications for TDFN-packaged parts are guaranteed by design.
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.
Note 8:
Off-isolation = 20log
10
(V
COM
/ V
NO
), where V
COM
= output and V
NO
= input to off switch.
Note 9:
Between any two switches.
Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
ON-RESISTANCE vs. V
COM
MAX4634-01
ON-RESISTANCE vs. V
COM
AND
TEMPERATURE (V+ = +3V)
MAX4634-02
ON-RESISTANCE vs. V
COM
AND
TEMPERATURE (V+ = +5V)
MAX4634-03
20
5.0
T
A
= +85°C
4.5
4.0
15
V+ = 1.8V
R
ON
(Ω)
R
ON
(Ω)
10
V+ = 2.5V
V+ = 3.0V
5
V+ = 5.0V
3.0
T
A
= -40°C
0
0
1
2
V
COM
(V)
3
4
5
2.5
0
0.5
1.0
1.5
V
COM
(V)
2.0
2.5
3.0
T
A
= +25°C
R
ON
(Ω)
4.0
3.5
T
A
= +85°C
3.0
3.5
2.5
2.0
T
A
= +25°C
1.5
0
1
3
2
V
COM
(V)
4
5
T
A
= -40°C
_______________________________________________________________________________________
5
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