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
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 CHARACTERISTICS—+5V Single Supply
(V+ = +5V ±10%, V- = 0, V
IH
= +2.4V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
On-Resistance
On-Resistance Match
Between Channels (Notes 4, 5)
On-Resistance Flatness (Note 6)
NO_ Off-Leakage Current
(Note 7)
COM_ Off-Leakage Current
(Note 7)
COM_ On-Leakage Current
(Note 7)
DIGITAL I/O
Input Logic High
Input Logic Low
Input Leakage Current
Digital Input Capacitance
DYNAMIC
Transition Time (Note 7)
t
TRANS
RL = 100Ω, C
L
= 35pF,
V
NO1
= +3V or 0,
V
NO8
= 0 or +3V, Figure 2
T
A
= +25°C
T
A
= T
MIN
to T
MAX
14
18
ns
20
Maxim Integrated
SYMBOL
CONDITIONS
MIN
TYP
(Note 2)
MAX
UNITS
V
COM_
,
V
NO_
R
ON
ΔR
ON
R
FLAT(ON)
I
NO_(OFF)
I
COM_(OFF)
V+ = +4.5V, I
COM_
= 10mA, T
A
= +25°C
V
NO_
= +3.5V
T
A
= T
MIN
to T
MAX
V+ = +4.5V, I
COM_
= 10mA, T
A
= +25°C
V
NO_
= +3.5V
T
A
= T
MIN
to T
MAX
V+ = +4.5V; I
COM_
= 10mA; T
A
= +25°C
V
NO_
= +1V, +2V, +3.5V
T
A
= T
MIN
to T
MAX
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
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
2.5
0.1
0.75
-0.25
-0.35
-0.25
-0.75
-0.25
-0.75
±0.01
±0.01
±0.01
V+
3.5
4.5
0.4
0.5
1
1.2
0.25
0.35
0.25
0.75
0.25
V
Ω
Ω
Ω
nA
nA
V+ = +5.5V; V
COM_
= +1V,
I
COM_(ON)
+4.5V; V
NO_
= +1V, +4.5V,
or unconnected
V
IH
V
IL
I
IH
, I
IL
C
IN
V
IN_
= 0 or V+
nA
0.75
2.4
0.8
-0.1
0.005
2
0.1
V
V
µA
pF
2
MAX4638/MAX4639
3.5
Ω
, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
ELECTRICAL CHARACTERISTICS—+5V Single Supply (continued)
(V+ = +5V ±10%, V- = 0, V
IH
= +2.4V, V
IL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Notes 2, 3)
PARAMETER
Break-Before-Make (Note 7)
SYMBOL
t
BBM
CONDITIONS
R
L
= 100Ω, C
L
= 35pF,
V
NO_
= +3V, Figure 3
R
L
= 100Ω, C
L
= 35pF,
V
NO1
= +3V, V
NO2
to
V
NO8
= 0, Figure 4
R
L
= 100Ω, C
L
= 35pF,
V
NO1
= +3V, V
NO2
to
V
NO8
= 0, Figure 4
Signal =
0dBm,
C
L
= 5pF,
50Ω in and
out, Figure 6
MAX4638
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
50
MHz
MAX4639
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
85
13
9
40
pF
MAX4639
MAX4638
MAX4639
20
54
pF
34
pC
pF
5
1
14
18
ns
20
7
ns
8
MIN
TYP
(Note 2)
8
MAX
UNITS
ns
MAX4638/MAX4639
Enable Turn-On Time (Note 7)
t
ON(EN)
Enable Turn-Off Time (Note 7)
t
OFF(EN)
On-Channel -3dB Bandwidth
BW
Charge Injection
NO_ Off-Capacitance
Q
C
NO_(OFF)
V
GEN
= +2.5V, R
GEN
= 0,
C
L
= 1.0nF, Figure 5
V
NO_
= 0V, f = 1MHz,
Figure 8
MAX4638
COM_ Off-Capacitance
V
COM_
= 0V,
C
COM_(OFF)
f = 1MHz,
Figure 8
V
COM_
=
V
NO_
= 0V,
f = 1MHz,
Figure 8
Switch On-Capacitance
C
(ON)
C
L
= 5pF, R
L
= 50Ω,
f = 1MHz, V
NO_
=
1V
RMS
, Figure 6
Off-Isolation (Note 8)
V
ISO
C
L
= 5pF, R
L
= 50Ω,
f = 10MHz, V
NO
_ =
1V
RMS
, Figure 6
C
L
= 5pF, R
L
= 50Ω,
f = 10MHz, V
NO
_=
1V
RMS
, Figure 7
C
L
= 5pF, R
L
= 50Ω,
f = 1MHz, V
NO
_ =
1V
RMS
, Figure 7
R
L
= 600Ω,
R
FLAT(ON)
/R
L
V+ = +5.5V, V
IN
= 0 or V+
T
A
= +25°C
-55
dB
T
A
= +25°C
-75
T
A
= +25°C
-65
dB
Crosstalk (Note 9)
V
CT
T
A
= +25°C
-85
Total Harmonic Distortion
SUPPLY
Positive Supply Current
THD
T
A
= +25°C
0.5
%
I+
0.001
1.0
µA
Maxim Integrated
3
MAX4638/MAX4639
3.5
Ω
, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
ELECTRICAL CHARACTERISTICS—+3.0V Single Supply
(V+ = +2.7V to +3.3V, V- = 0, V
IH
= +2.0V, V
IL
= +0.4V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +3V
and T
A
= +25°C.) (Notes 2, 3)
PARAMETER
ANALOG SWITCH
Analog Signal Range
On-Resistance
On-Resistance Match
Between Channels (Notes 4, 5)
On-Resistance Flatness (Note 6)
V
COM_
,
V
NO_
R
ON
ΔR
ON
I
COM_
= 10mA,
V
NO_
= +1.7V
I
COM_
= 10mA,
V
NO_
= +1.7V
I
COM_
= 10mA;
V
NO_
= +1.5V, +1.7V,
+1.9V
V+ = +3.3V;
V
COM_
= +1V, +3V; V
NO_
= +3V, +1V
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
-0.25
-0.35
-0.25
-0.35
-0.25
-0.35
±0.01
±0.01
±0.01
1
0.25
0
4.5
V+
6
8
0.6
0.8
2
2.5
0.25
nA
0.35
0.25
nA
0.35
0.25
nA
0.35
V
Ω
Ω
Ω
SYMBOL
CONDITIONS
MIN
TYP
(Note 2)
MAX
UNITS
R
FLAT(ON)
NO_ Off-Leakage Current
(Note 7)
COM_ Off-Leakage Current
(Note 7)
COM_ On-Leakage Current
(Note 7)
DIGITAL I/O
Input Logic High
Input Logic Low
Input Leakage Current
Digital Input Capacitance
DYNAMIC
Transition Time (Note 7)
Break-Before-Make (Note 7)
Enable Turn-On Time (Note 7)
Enable Turn-Off Time (Note 7)
I
NO_(OFF)
V+ = +3.3V;
I
COM_(OFF)
V
COM_
= +1V, +3V; V
NO_
= +3V, +1V
V+ = +3.3V; V
COM_
=
I
COM_(ON)
+1V, +3V; V
NO_
= +1V,
+3V, or unconnected
V
IH
V
IL
I
IH
, I
IL
C
IN
V
NO_
= +2V, C
L
= 35pF,
R
L
= 100Ω, Figure 2
V
NO_
= +2V, C
L
= 35pF,
R
L
= 100Ω, Figure 3
V
NO_
= +2V, C
L
= 35pF,
R
L
= 100Ω, Figure 4
V
NO_
= +2V, C
L
= 35pF,
R
L
= 100Ω, Figure 4
V
IN_
= 0 or V+
2.0
0.4
-0.1
0.005
2
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
5
1
15
20
24
9
10
8
16
20
24
0.1
V
V
µA
pF
t
TRANS
t
BBM
t
ON(EN)
t
OFF(EN)
ns
ns
ns
ns
4
Maxim Integrated
MAX4638/MAX4639
3.5
Ω
, Single 8:1 and Dual 4:1,
Low-Voltage Analog Multiplexers
ELECTRICAL CHARACTERISTICS—+3.0V Single Supply (continued)
(V+ = +2.7V to +3.3V, V- = 0, V
IH
= +2.0V, V
IL
= +0.4V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V+ = +3V
1、引言 汽车污染是当前人们最为关心和急需解决的重要课题之一。作为汽车排气污染物的检测的重要方法,简易瞬态工况法（VMAS法，IG法）可以统计排放总质量，监控车辆的真实排放情况，设备成本不高，测量比较准确，与新车认证检测结果具有相关性，可以检测NO相关因子等一系列优点，成为人们研究的热点。VMAS（Vehicle Mass Analysis System）检测方法在美国和欧洲都有很好的应用基础，...[详细]
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