MAX4638_V01 [MAXIM]
3.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers;
| 型号： | MAX4638_V01 |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | 3.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers |
| 文件： | 总14页 (文件大小：248K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
General Description
Features
The MAX4638/MAX4639 are single 8:1 and dual 4:1
CMOS analog multiplexers/demultiplexers (muxes/
demuxes). Each mux operates from a single +1.8V to
+5V supply or dual 2.5V supplies. These devices fea-
♦ Guaranteed R
ON
3.5Ω (+5V or 2.5V ꢀuppliesꢁ
6Ω (+3V ꢀupplyꢁ
♦ Guaranteed 0.4Ω R
Match Between Channels
ON
ture 3.5Ω on-resistance (R ) when powered with a
ON
single +5V supply and have -75dB off-isolation and
-85dB crosstalk from the output to each off channel.
♦ Guaranteed 1Ω R
Flatness Over ꢀignal Range
ON
♦ Guaranteed Low Leakage Currents
0.25nA at +25°C
♦ ꢀwitching Times: t
The switching times are 18ns t
and 7ns t
. They
OFF
ON
feature a -3dB 85MHz bandwidth and a guaranteed
0.25nA leakage current at +25°C.
= 18ns, t
= 7ns
OFF
ON
A +1.8V to +5.5V operating range makes the MAX4638/
MAX4639 ideal for battery-powered, portable instru-
ments. All channels guarantee break-before-make
switching. These parts feature bidirectional operation
and can handle Rail-to-Rail® analog signals. All control
inputs are TTL/CMOS-logic compatible. Decoding is in
standard BCD format, and an enable input is provided to
simplify cascading of devices. These devices are avail-
able in small 16-pin TQFN, TSSOP, and SO packages, as
well as a 20-pin TQFN package.
♦ +1.8V to +5.5V ꢀingle-ꢀupply Operation
2.5V Dual-ꢀupply Operation
♦ Rail-to-Rail ꢀignal Handling
♦ TTL/CMOꢀ-Logic Compatible
♦ Crosstalk: -80dB (1MHzꢁ
♦ Off-Isolation: -60dB (10MHzꢁ
Ordering Information
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TQFN-EP* (4 ꢀ 4)
16 TSSOP
Applications
MAX4638ETE+T
MAX4638EUE+T
MAX4638ESE+T
MAX4638ETP+T
Automatic Test Equipment
Low-Voltage Data-Acquisition Systems
Audio and Video Signal Routing
Medical Equipment
16 SO
20 TQFN-EP* (4 ꢀ 4)
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*EP = Exposed pad.
Battery-Powered Equipment
Relay Replacement
Ordering Information continued at end of data sheet.
Pin Configurations/Functional Diagrams
TOP VIEW
MAX4638
MAX4639
+
+
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
A0
16 A1
15 A2
A0
16 A1
15 GND
EN
V-
EN
V-
LOGIC
LOGIC
GND
V+
14
14
13 NO1B
12
NO1
NO2
NO3
NO4
COM
NO1A
NO2A
NO3A
NO4A
COMA
13 V+
12
NO5
NO2B
11 NO3B
11 NO6
NO7
NO8
NO4B
10
9
10
9
COMB
TSSOP/SO
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
TSSOP/SO
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
19-1782; Rev 3; 10/12
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
ABꢀOLUTE MAXIMUM RATINGꢀ
(Voltages Referenced to GND)
Continuous Power Dissipation (T = +70°C)
A
V+ to V- .................................................................................+6V
V+, A_, EN................................................................-0.3V to +6V
V- ............................................................................+0.3V to -6V
NO_, COM_ (Note 1) ................................... -0.3V to (V+ + 0.3V)
Continuous Current A_, EN ............................................. 30mA
Continuous Current NO_, COM_ .................................. 100mA
Peak Current (NO_, COM_)
TQFN (derate 16.9mW/°C above +70°C).....................1349mW
TSSOP (derate 9.4mW/°C above +70°C)....................754.7mW
SO (derate 8.70mW/°C above +70°C) ...........................696mW
Operating Temperature Range
MAX463_E_ E ................................................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range ............................-65°C to +150°C
Lead Temperature (soldering, 10s) ................................+300°C
Soldering Temperature (reflow) ......................................+260°C
(pulsed at 1ms, 10ꢀ duty cycle) .............................. 200mA
Note 1: Signals on COM_, NO_ exceeding V+ or V- are clamped by internal diodes. A_ and EN are clamped only to V- and can
exceed V+ up to their maximum ratings. 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 CHARACTERIꢀTICꢀ—+5V ꢀingle ꢀupply
(V+ = +5V 10ꢀ, V- = 0, V = +2.4V, V = +0.8V, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Notes 2, 3)
IH
IL
A
MIN
MAX
A
TYP
PARAMETER
ANALOG SWITCH
SYMBOL
CONDITIONS
MIN
MAX
UNITS
(Note 2)
V
V
,
COM_
Analog Signal Range
0
V+
V
NO_
T
T
= +25°C
2.5
0.1
3.5
4.5
V+ = +4.5V, I
= 10mA,
= 10mA,
= 10mA;
A
A
COM_
COM_
COM_
On-Resistance
R
Ω
ON
V
NO_
= +3.5V
= T
to T
MIN
MAX
MAX
MAX
MAX
MAX
T
T
= +25°C
0.4
0.5
On-Resistance Match
Between Channels (Notes 4, 5)
V+ = +4.5V, I
A
ΔR
Ω
ON
V
NO_
= +3.5V
= T
to T
A
MIN
T
T
T
T
T
T
= +25°C
0.75
0.01
0.01
1
A
A
A
A
A
A
V+ = +4.5V; I
On-Resistance Flatness (Note 6)
R
Ω
FLAT(ON)
V
NO_
= +1V, +2V, +3.5V
= T
to T
1.2
MIN
= +25°C
= T to T
-0.25
-0.35
-0.25
-0.75
0.25
0.35
0.25
0.75
NO_ Off-Leakage Current
(Note 7)
V+ = +5.5V; V
= +1V,
COM_
I
nA
nA
NO_(OFF)
+4.5V; V
= +4.5V, +1V
NO_
MIN
= +25°C
= T to T
COM_ Off-Leakage Current
(Note 7)
V+ = +5.5V; V
= +1V,
COM_
I
COM_(OFF)
+4.5V; V
= +4.5V, +1V
NO_
MIN
V+ = +5.5V; V
= +1V,
T
= +25°C
-0.25
-0.75
0.01
0.25
0.75
COM_
A
A
COM_ On-Leakage Current
(Note 7)
I
nA
+4.5V; V
= +1V, +4.5V,
COM_(ON)
NO_
T
= T
to T
MAX
MIN
or unconnected
DIGITAL I/O
Input Logic High
Input Logic Low
Input Leakage Current
V
2.4
V
V
IH
V
0.8
0.1
IL
I
, I
V
= 0 or V+
-0.1
0.005
2
µA
IH IL
IN_
Digital Input Capacitance
C
pF
IN
DYNAMIC
R = 100Ω, C
L
L = 35pF,
NO1 = +3V or 0,
= 0 or +3V, Figure 2
T
T
= +25°C
14
18
20
A
Transition Time (Note 7)
t
TRANS
ns
V
= T
to T
MAX
A
MIN
V
NO8
Maxim Integrated
2
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
8/MAX4639
ELECTRICAL CHARACTERIꢀTICꢀ—+5V ꢀingle ꢀupply (continuedꢁ
(V+ = +5V 10ꢀ, V- = 0, V = +2.4V, V = +0.8V, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Notes 2, 3)
IH
IL
A
MIN
MAX
A
TYP
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
(Note 2)
T
T
= +25°C
8
A
A
R = 100Ω, C = 35pF,
L
L
Break-Before-Make (Note 7)
Enable Turn-On Time (Note 7)
t
ns
BBM
V
= +3V, Figure 3
NO_
= T
to T
1
MIN
MAX
MAX
R = 100Ω, C = 35pF,
L
L
T
T
T
T
= +25°C
14
5
18
20
7
A
A
A
A
t
V
V
= +3V, V to
NO2
= 0, Figure 4
ns
ns
ON(EN)
NO1
NO8
= T
to T
MIN
R = 100Ω, C = 35pF,
L
L
= +25°C
= T to T
Enable Turn-Off Time (Note 7)
On-Channel -3dB Bandwidth
t
V
V
= +3V, V
NO2
= 0, Figure 4
to
OFF(EN)
NO1
NO8
8
MIN
MAX
Signal =
0dBm,
C = 5pF,
L
50Ω in and
out, Figure 6
MAX4638
MAX4639
T
T
= +25°C
= +25°C
50
85
A
BW
Q
MHz
A
V
GEN
= +2.5V, R
= 0,
GEN
Charge Injection
T
T
= +25°C
= +25°C
13
9
pC
pF
A
C = 1.0nF, Figure 5
L
V
= 0V, f = 1MHz,
NO_
NO_ Off-Capacitance
C
NO_(OFF)
A
Figure 8
V
= 0V,
COM_
MAX4638
MAX4639
T
T
= +25°C
= +25°C
40
20
A
A
COM_ Off-Capacitance
Switch On-Capacitance
C
f = 1MHz,
Figure 8
pF
pF
COM_(OFF)
V
V
=
= 0V,
COM_
MAX4638
MAX4639
T
= +25°C
= +25°C
54
34
A
A
NO_
C
(ON)
f = 1MHz,
Figure 8
T
C = 5pF, R = 50Ω,
L
L
T
A
T
A
T
A
= +25°C
= +25°C
= +25°C
-55
-75
-65
f = 1MHz, V
=
NO_
1V
RMS
, Figure 6
Off-Isolation (Note 8)
V
dB
dB
ISO
C = 5pF, R = 50Ω,
L
L
f = 10MHz, V _ =
NO
1V
RMS
, Figure 6
C = 5pF, R = 50Ω,
L
L
f = 10MHz, V _=
NO
1V
, Figure 7
RMS
Crosstalk (Note 9)
V
CT
C = 5pF, R = 50Ω,
L
L
T
T
= +25°C
= +25°C
-85
0.5
f = 1MHz, V _ =
A
A
NO
1V , Figure 7
RMS
R = 600Ω,
L
Total Harmonic Distortion
THD
I+
ꢀ
R
/R
FLAT(ON)
L
SUPPLY
Positive Supply Current
V+ = +5.5V, V = 0 or V+
0.001
1.0
µA
IN
Maxim Integrated
3
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
ELECTRICAL CHARACTERIꢀTICꢀ—+3.0V ꢀingle ꢀupply
(V+ = +2.7V to +3.3V, V- = 0, V = +2.0V, V = +0.4V, T = T
to T , unless otherwise noted. Typical values are at V+ = +3V
MAX
IH
IL
A
MIN
and T = +25°C.) (Notes 2, 3)
A
TYP
PARAMETER
ANALOG SWITCH
SYMBOL
CONDITIONS
MIN
MAX
UNITS
(Note 2)
V
V
,
COM_
Analog Signal Range
0
V+
V
Ω
Ω
NO_
T
T
T
T
= +25°C
4.5
6
A
A
A
A
I
V
= 10mA,
= +1.7V
COM_
On-Resistance
R
ON
NO_
= T
to T
8
MIN
MAX
MAX
= +25°C
= T to T
0.25
0.6
0.8
On-Resistance Match
Between Channels (Notes 4, 5)
I
= 10mA,
= +1.7V
COM_
ΔR
ON
V
NO_
MIN
I
V
= 10mA;
= +1.5V, +1.7V,
COM_
T
T
T
T
T
T
T
T
= +25°C
1
2
A
A
A
A
A
A
A
A
On-Resistance Flatness (Note 6)
R
I
Ω
FLAT(ON)
NO_
= T
to T
2.5
MIN
MAX
MAX
MAX
MAX
+1.9V
V+ = +3.3V;
= +1V, +3V; V
= +25°C
= T to T
-0.25
-0.35
-0.25
-0.35
-0.25
-0.35
0.01
0.01
0.01
0.25
0.35
0.25
0.35
0.25
0.35
NO_ Off-Leakage Current
(Note 7)
nA
nA
nA
V
NO_(OFF)
COM_
NO_
NO_
MIN
= +3V, +1V
V+ = +3.3V;
V
= +3V, +1V
= +25°C
= T to T
COM_ Off-Leakage Current
(Note 7)
I
= +1V, +3V; V
COM_(OFF)
COM_
MIN
V+ = +3.3V; V
+1V, +3V; V
+3V, or unconnected
=
COM_
= +1V,
NO_
= +25°C
= T to T
COM_ On-Leakage Current
(Note 7)
I
COM_(ON)
MIN
DIGITAL I/O
Input Logic High
Input Logic Low
Input Leakage Current
Digital Input Capacitance
DYNAMIC
V
2.0
V
V
IH
V
0.4
0.1
IL
I
, I
V
= 0 or V+
-0.1
0.005
2
µA
pF
IH IL
IN_
C
IN
T
T
T
T
T
T
T
T
= +25°C
16
8
20
24
A
A
A
A
A
A
A
A
V
= +2V, C = 35pF,
L
NO_
Transition Time (Note 7)
t
ns
ns
ns
ns
TRANS
R = 100Ω, Figure 2
L
= T
to T
MIN
MAX
MAX
MAX
MAX
= +25°C
= T to T
V
= +2V, C = 35pF,
L
NO_
Break-Before-Make (Note 7)
Enable Turn-On Time (Note 7)
Enable Turn-Off Time (Note 7)
t
BBM
R = 100Ω, Figure 3
L
1
MIN
= +25°C
= T to T
15
5
20
24
9
V
= +2V, C = 35pF,
L
NO_
t
ON(EN)
R = 100Ω, Figure 4
L
MIN
= +25°C
= T to T
V
= +2V, C = 35pF,
L
NO_
t
OFF(EN)
R = 100Ω, Figure 4
L
10
MIN
Maxim Integrated
4
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
ELECTRICAL CHARACTERIꢀTICꢀ—+3.0V ꢀingle ꢀupply (continuedꢁ
(V+ = +2.7V to +3.3V, V- = 0, V = +2.0V, V = +0.4V, T = T
to T , unless otherwise noted. Typical values are at V+ = +3V
MAX
IH
IL
A
MIN
and T = +25°C.) (Notes 2, 3)
A
TYP
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
(Note 2)
C = 5pF, R = 50Ω,
f = 10MHz,
L
L
T
A
T
A
T
A
T
A
= +25°C
= +25°C
= +25°C
= +25°C
55
V
NO_
= +1V
, Figure 6
RMS
Off-Isolation (Note 8)
V
dB
ISO
C = 5pF, R = 50Ω,
L
L
f = 1MHz, V
= 1V
,
-75
-65
-85
NO_
RMS
Figure 6
C = 5pF, R = 50Ω,
L
L
f = 10MHz, V
= 1V
,
NO_
RMS
Figure 7
Crosstalk (Note 9)
V
dB
CT
C = 5pF, R = 50Ω,
L
L
f = 1MHz, V
= 1V
,
NO_
RMS
Figure 7
Signal =
0dBm, 50Ω in
and out,
MAX4638
MAX4639
T
T
= +25°C
= +25°C
50
85
A
A
On-Channel -3dB Bandwidth
BW
MHz
Figure 6
V
= 0V, f = 1MHz,
NO_
NO_ Off-Capacitance
COM_ Off-Capacitance
C
T
= +25°C
9
pF
pF
NO_(OFF)
A
Figure 8
V
= 0V,
COM_
MAX4638
MAX4639
T
T
= +25°C
= +25°C
40
20
A
C
f = 1MHz,
Figure 8
COM_(OFF)
A
V
= 0V,
f = 1MHz,
Figure 8
= V
NO_
COM
MAX4638
MAX4639
T
= +25°C
= +25°C
54
34
A
A
Switch On-Capacitance
C
pF
µA
(ON)
I+
T
SUPPLY
Positive Supply Current
V+ = +3.3V, V
= 0 or V+
0.001
1
IN_
ELECTRICAL CHARACTERIꢀTICꢀ— 2.5V Dual ꢀupplies
(V+ = +2.5 10ꢀ, V- = -2.5V 10ꢀ, V = +2.0V, V = +0.4V, T =T
to T
, unless otherwise noted. Typical values are at
IH
IL
A
MIN
MAX
V
= 2.5V and T = +25°C.) (Notes 2, 3)
A
TYP
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
ANALOG SWITCH
V
V
,
COM_
Analog Signal Range
V-
V+
V
ꢀ
ꢀ
NO_
T
= +25°C
2.5
0.2
3.5
4.5
0.4
0.5
I
= 10mA, V
= ±1.5V,
A
A
A
COM_
NO_
On-Resistance
R
ON
V+ = +2.25V, V- = -2.25V
T
= T
to T
MIN
MAX
MAX
T
= +25°C
= T to T
On-Resistance Match
Between Channels (Notes 4, 5)
I
COM_
= 10mA, V = ±1.5V,
NO_
ꢁR
ON
V+ = +2.25V, V- = -2.25V
T
A
MIN
Maxim Integrated
5
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
ELECTRICAL CHARACTERIꢀTICꢀ— 2.5V Dual ꢀupplies (continuedꢁ
(V+ = +2.5 10ꢀ, V- = -2.5V 10ꢀ, V = +2.0V, V = +0.4V, T = T
to T
, unless otherwise noted. Typical values are at
MAX
IH
IL
A
MIN
V
= 2.5V and T = +25°C.) (Notes 2, 3)
A
TYP
(Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
T
T
= +25°C
0.75
1
On-Resistance Flatness
(Note 6)
I
= 10mA; V
= ±1.5V,
A
COM_
NO_
R
ꢀ
FLAT(ON)
0; V+ = +2.25V; V- = -2.25V
= T
to T
1.2
A
MIN
MAX
V+ = +2.75V; V- = -2.75V;
T
A
T
A
T
A
T
A
= +25°C
-0.25
-0.35
-0.25
-0.35
±0.01
±0.01
0.25
0.35
0.25
0.35
NO_ Off-Leakage
Current (Note 7)
I
nA
nA
V
V
= +1V, +2.5V;
= +2.5V, +1V
NO_ (OFF)
COM_
= T
to T
MIN
MAX
NO_
V+ = +2.75V; V- = -2.75;
= +25°C
= T to T
COM_ Off-Leakage
Current (Note 7)
I
V
V
= +1V, +2.5V;
= +2.5V, +1V
COM_ (OFF)
COM_
MIN
MAX
NO_
V+ = +2.5V; V- = -2.5;
T
= +25°C
-0.25
-0.35
±0.01
0.25
0.35
A
COM_ On-Leakage
Current (Note 7)
V = +1V, +2.5V;
COM_
I
nA
COM_ (ON)
V
NO_
= +1V, +2.5V,
T
= T
to T
A
MIN
MAX
or unconnected
DIGITAL I/O
Input Logic High
Input Logic Low
Input Leakage Current
Digital Input Capacitance
DYNAMIC
V
2.0
V
V
IH
V
0.4
0.1
IL
I
,I
IH IL
V
= 0 or V+
IN_
-0.1
0.005
2
μA
pF
C
IN
T
A
T
A
T
A
T
A
T
A
T
A
T
A
T
A
= +25°C
16
14
5
20
24
18
20
7
V
= +1.2V, C = 35pF,
L
NO_
Transition Time (Note 7)
t
ns
ns
ns
ns
TRANS
ON(EN)
R = 100ꢀ, Figure 2
L
= T
to T
MIN
MAX
MAX
MAX
MAX
= +25°C
= T to T
Enable Turn-On Time
(Note 7)
V
= +1.2V, C = 35pF,
NO_ L
t
R = 100ꢀ, Figure 4
L
MIN
= +25°C
= T to T
Enable Turn-Off Time
(Note 7)
V
= +1.2V, C = 35pF,
NO_ L
t
OFF(EN)
R = 100ꢀ, Figure 4
L
8
MIN
= +25°C
= T to T
8
V
NO_
= +1.2V, C = 35pF,
L
Break-Before-Make (Note 7)
t
BBM
R = 100ꢀ, Figure 3
L
1
MIN
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: Parts are tested at +85°C and guaranteed by design over the entire temperature range.
Note 4: ΔR
Note 5: ΔR
= R
- R
.
ON
ON(MAX)
ON(MIN)
matching specifications for TQFN packaged parts are guaranteed by design.
ON
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 (V
/ V
NO_
), V
= output, V
= input to off switch.
NO_
10 COM_
COM_
Note 9: Between any two switches.
Maxim Integrated
6
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
Typical Operating Characteristics
(V+ = +5V, V- = 0V, T = +25°C, unless otherwise noted.)
A
ON-RESISTANCE vs. V
AND
ON-RESISTANCE vs. V
AND
COM
COM
TEMPERATURE
ON-RESISTANCE vs. V
TEMPERATURE
COM
25
20
15
10
5
6
5
4
3
2
1
0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
V+ = +1.8V
V+ = +3V
V+ = +5V
T
= +85°C
= -40°C
A
T
= +85°C
= -40°C
A
T
A
T
= +25°C
A
T
= +25°C
A
T
A
V+ = +3V
V+ = +5V
0
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
(V)
V
(V)
V
(V)
V
COM
COM
COM
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
vs. TEMPERATURE
CHARGE INJECTION vs. V
COM
20
18
16
14
12
10
8
200
180
160
140
120
100
80
10
1
V
= 2.5V
V+ = +5V
0.1
0.01
6
4
2
60
0
0.001
-2.5
-0.5
1.5
3.5
5.5
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
SUPPLY VOLTAGE (V)
-40
-15
10
35
60
85
V
(V)
TEMPERATURE (°C)
COM
ENABLE TURN-ON/TURN-OFF TIME
vs. TEMPERATURE
LOGIC LEVEL THRESHOLD vs.
SUPPLY VOLTAGE AND TEMPERATURE
ENABLE TURN-ON/TURN-OFF TIME
vs. SUPPLY VOLTAGE
16
14
12
10
8
1.8
1.6
1.4
1.2
1.0
0.8
0.6
45
40
35
30
25
20
15
10
5
t
ON
T
= -40°C
A
t
ON
T
A
= +25°C
t
OFF
6
T
= +85°C
A
4
t
OFF
2
0
0
-40
-15
10
35
60
85
1.8 2.3 2.8 3.3 3.8 4.3 4.8
SUPPLY VOLTAGE (V)
5.3
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
Maxim Integrated
7
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
Typical Operating Characteristics (continued)
(V+ = +5V, V- = 0V, T = +25°C, unless otherwise noted.)
A
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
FREQUENCY RESPONSE
0.10
0.08
0.06
0.04
0.02
0
1000
100
V+ = +2.5V
V- = -2.5V
5Vp-p SIGNAL
600Ω IN AND OUT
0
ON-RESPONSE MAX4638
ON-RESPONSE MAX4639
-20
10
ON-LEAKAGE
-40
-60
OFF-ISOLATION
1
OFF-LEAKAGE
0.1
0.01
CROSSTALK
-80
-100
-120
0.001
0.01
0.1
1
10
100
0.01
0.1
1
10
100
1000
-40
-20
0
20
40
60
80
FREQUENCY (kHz)
FREQUENCY (MHz)
TEMPERATURE (°C)
Pin Description
PIN
MAX4638
TQFN-EP
16-PIN 20-PIN
15, 13, 14 19, 18, 17
MAX4639
TQFN-EP
NAME
FUNCTION
DIP/SO
DIP/SO
16-PIN
20-PIN
1, 15, 16
—
1, 16
2
—
15, 14
16
—
19, 17
1
A0, A2, A1
A0, A1
EN
Address Inputs
—
2
—
16
1
—
1
Address Inputs
Enable
3
2
3
1
2
V-
Negative-Supply Voltage Input
Bidirectional Analog Inputs
Bidirectional Analog Inputs
Bidirectional Analog outputs
Bidirectional Analog outputs
Bidirectional Analog Inputs
Bidirectional Analog Inputs
Positive-Supply Voltage Input
Ground
4–7
—
2–5
—
3–6
—
—
—
—
NO1–N04
4–7
—
2–5
—
3–6
—
NO1A–NO4A
COM
8
6
7
—
—
—
8, 9
—
6, 7
—
7, 9
—
COMA, COMB
NO8–NO5
NO4B–NO1B
V+
9–12
—
7–10
—
10–13
—
10–13
14
8–11
12
10–13
14
13
14
11
12
14
15
15
13
15
GND
8, 9,
16, 20
8, 16,
18, 20
No Connection. Not internally
connected.
—
—
—
—
—
—
—
—
N.C.
EP
Exposed Pad (TQFN Only).
Connect EP to V-.
—
—
Maxim Integrated
8
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
Detailed Description
+2.5V
D1
The MAX4638/MAX4639 are low-voltage, CMOS analog
muxes. The MAX4638 is an 8:1 mux that switches one
of eight inputs (NO1–NO8) to a common output (COM)
as determined by the 3-bit binary inputs A0, A1, and
A2. The MAX4639 is a 4:1 dual mux that switches one
of four differential inputs to a common differential out-
put as determined by the 2-bit binary inputs A0 and A1.
Both the MAX4638/MAX4639 have an EN input that can
be used to enable or disable the device. When dis-
abled, all channels are switched off. See Truth Tables.
MAX4638
MAX4639
V+
*
*
*
*
NO_
COM_
V-
Applications Information
D2
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings because stresses beyond the listed rat-
ings can cause permanent damage to the devices.
Always sequence V+ on first, then V-, followed by the
logic inputs. If power-supply sequencing is not possi-
ble, add two small-signal diodes (D1, D2) in series with
the supply pins for overvoltage protection (Figure 1).
Adding diodes reduces the analog signal range to one
diode drop below V+ and one diode drop above V-, but
-2.5V
* INTERNAL PROTECTION DIODES
Figure 1. Overvoltage Protection Using External Blocking
Diodes
does not affect the devices’ low switch resistance.
Device operation is unchanged, and the difference
between V+ and V- should not exceed 6V. These pro-
tection diodes are not recommended when using a sin-
gle supply. For single-supply operation, V- should be
connected to GND as close to the device as possible.
Truth Tables
MAX4638 (ꢀingle 8-to-1 Muxꢁ
MAX4639 (Dual 4-to-1 Muxꢁ
A1
X
A0
X
EN
0
COMA
None
COMB
None
A2
X
0
A1
X
0
A0
X
0
EN
0
ON ꢀWITCH
None
NO1
0
0
1
NO1A
NO2A
NO3A
NO4A
NO1B
NO2B
NO3B
NO4B
1
0
1
1
0
0
1
1
NO2
1
0
1
0
1
0
1
NO3
1
1
1
0
1
1
1
NO4
1
0
0
1
NO5
1
0
1
1
NO6
1
1
0
1
NO7
1
1
1
1
NO8
Maxim Integrated
9
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
Test Circuits/Timing Diagrams
V+
V+
NO1
A2
A1
A0
V
V
NO1
NO2–NO7
50Ω
MAX4638
NO8
NO8
EN
V
IH
t < 5ns
R
F
COM
V
OUT
+3V
t < 5ns
ADDRESS
INPUT
GND
V-
V-
50%
V
100Ω
IN
35pF
0V
V
IN
t
TRANS
V
N01
V+
V+
10%
90%
SWITCH
OUTPUT
NO1B
NO1A–NO4A
V
A1
A0
NO1
V
OUT
V
N08
50Ω
MAX4639
t
TRANS
V
NO8
NO4B
V
IH
EN
COMB
V
OUT
GND
V-
V
IN
100Ω
35pF
V-
Figure 2. Transition Time
V+
V+
t
< 5ns
R
F
V
NO1
NO2–NO7
V
V
EN
A0
IH
NO1
+3V
0V
t < 5ns
ADDRESS
INPUT
50%
V
A
MAX4638
V
N0_
A1
A2
90%
V
A
NO8
NO8
SWITCH
OUTPUT
COM
V
OUT
GND
V-
V-
V
OUT
35pF
t
BBM
0V
50Ω
100Ω
Figure 3. MAX4638 Break-Before-Make Interval
Maxim Integrated
10
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
Test Circuits/Timing Diagrams (continued)
V+
V+
V
EN
EN
NO1
V
NO1
NO2–NO8
A0
A1
A2
MAX4638
t
< 5ns
R
LOGIC
INPUT
+3V
0V
COM
t < 5ns
F
V
50%
OUT
GND
V-
V
EN
35pF
50Ω
100Ω
V-
V
NO1
90%
V+
V+
90%
SWITCH
OUTPUT
V
EN
V
OUT
0V
EN
A0
NO1B
V
NO1
NO_, COMA
t
ON(EN)
MAX4639
A1
t
OFF(EN)
COMB
V-
V
OUT
GND
35pF
50Ω
100Ω
V-
Figure 4. Enable Switching Time
V+
R
S
NO_
EN
V+
+3V
0V
V
EN
LOGIC
INPUT
OFF ON
OFF
ON
ON
OFF
OUT
V
EN
V
MAX4638
MAX4639
S
A0
A1
A2
COM
CHANNEL
SELECT
V
OUT
ΔV
C
L
V
OUT
1nF
GND
V-
ΔV IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
OUT
ERROR Q WHEN THE CHANNEL TURNS OFF.
V-
Q = ΔV
✕ C
L
OUT
Figure 5. Charge Injection
Maxim Integrated
11
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
Test Circuits/Timing Diagrams (continued)
1μF
V+
V+
V+
1μF
V+
NO1
NO2
NO1
NO8
V
IN
V
IN
R
= 50Ω
S
R
50Ω
NO8
MAX4638
MAX4639
V
OUT
MAX4638
MAX4639
COM
V-
COM
V-
A0
A1
A2
V
OUT
A0
A1
A2
R
G
= 50Ω
C
5pF
L
R
50Ω
L
C
5pF
R
50Ω
L
L
GND EN
EN
GND
1μF
V-
CROSSTALK = 20log
V-
V
OUT
V
OUT
V
EN
V
EN
OFF-ISOLATION = 20log
V
IN
V
IN
Figure 6. Off-Isolation/On-Channel Bandwidth
Figure 7. Crosstalk
V+
V+
A2
A1
A0
NO1
1MHz
CAPACITANCE
ANALYZER
CHANNEL
SELECT
MAX4638
MAX4639
NO8
COM
GND EN
V-
V-
f = 1MHz
V
EN
Figure 8. Channel Off/On-Capacitance
Maxim Integrated
12
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
Pin Configurations (continued)
TOP VIEW
+
+
V-
NO1
NO2
NO3
1
2
3
4
V-
NO1A
NO2A
NO3A
1
2
3
4
12 GND
11 V+
12 V+
11 NO1B
10 NO2B
MAX4638
10 NO5
MAX4639
9
NO6
9
NO3B
EP*
EP*
TQFN
TQFN
*CONNECT EP TO V-
+
+
EN
V-
1
2
3
4
5
EN
V-
1
15 GND
14 V+
15 GND
14 V+
2
3
4
5
13 NO5
12 NO6
13 NO1B
12 NO2B
NO1
NO2
NO3
NO1A
NO2A
NO3A
MAX4638
MAX4639
11
11
EP*
NO7
NO3B
EP*
TQFN
TQFN
*CONNECT EP TO V-
Package Information
Ordering Information (continued)
For the latest package outline information and land patterns (foot-
prints), go to www.maximintegrated.com/packages. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but the
drawing pertains to the package regardless of RoHS status.
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TQFN-EP* (4 ꢀ 4)
16 TSSOP
MAX4639ETE+T
MAX4639EUE+T
MAX4639ESE+T
MAX4639ETP+T
16 SO
PACKAGE
TYPE
PACKAGE
CODE
OUTLINE
NO.
LAND
PATTERN NO.
20 TQFN-EP* (4 ꢀ 4)
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
*EP = Exposed pad.
16 TQFN
20 TQFN
16 TSSOP
16 SO
T1644+4
T1644+3
U16+2
21-0139
21-0139
21-0066
21-0041
90-0070
90-0069
90-0117
90-0097
Chip Information
S16+3
PROCESS: BiCMOS
Maxim Integrated
13
MAX4638/MAX4639
3.5Ω, Single 8:1 and Dual 4:1,Z
Low-Voltage Analog Multiplexers
Revision History
REVISION
NUMBER
REVISION
DATE
PAGES
DESCRIPTION
CHANGED
2
9/10
—
—
3
10/12
Added RoHS ordering information throughout data sheet
1–16
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent
licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and
max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
14 ________________________________Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000
© 2012 Maxim Integrated Products, Inc.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.
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