MAX4674_V01 [MAXIM]

3V/5V, 4Ω, Wideband Quad 2:1 Analog Multiplexer;
MAX4674_V01
型号: MAX4674_V01
厂家: MAXIM INTEGRATED PRODUCTS    MAXIM INTEGRATED PRODUCTS
描述:

3V/5V, 4Ω, Wideband Quad 2:1 Analog Multiplexer

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19-1708; Rev 3; 12/06  
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
General Description  
Features  
The MAX4674 is a low-voltage CMOS analog switch con-  
taining four 2:1 multiplexers/demultiplexer. When pow-  
ered from a single +5V supply, it features a low 4max  
o Guaranteed On-Resistance  
4max (+5V Supply)  
6max (+3V Supply)  
on-resistance (R ), 0.4max R  
matching between  
ON  
ON  
o Guaranteed Match Between Channels  
channels, and 0.8RON flatness over the entire signal  
0.4max  
range. Off-leakage current is only 0.5nA max at +25°C.  
o Guaranteed Flatness Over Signal Range  
0.8max  
The MAX4674 features fast turn-on (t ) and turn-off  
ON  
(t  
) times of 18ns and 6ns, respectively, and is avail-  
OFF  
o 1.8V Operation  
able in QFN, QSOP, TSSOP, and SO packages.  
R
= 100typ Over Temperature  
ON  
t
t
= 51ns typ  
ON  
OFF  
This low-voltage multiplexer operates with 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.  
= 13ns typ  
o Guaranteed Low Leakage Currents  
0.5nA max at +25°C  
o Single-Supply Operation from +1.8V to +5.5V  
o Rail-to-Rail Signal Handling  
o TTL/CMOS-Logic Compatible  
o Crosstalk: -114dB (1MHz)  
________________________Applications  
10/100 Base-T  
ATM Switching  
o Off-Isolation: -67dB (1MHz)  
o 4mm 4mm QFN Package  
Audio and Video Signal Routing  
Low-Voltage Data-Acquisition Systems  
Communications Circuits  
Relay Replacement  
Ordering Information  
TEMP  
RANGE  
PIN-  
PACKAGE  
PKG  
CODE  
PART  
MAX4674EEE  
MAX4674EUE  
MAX4674ESE  
MAX4674EGE  
MAX4674EGP  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
16 QSOP  
E16-4  
U16-2  
16 TSSOP  
S16-2  
16 Narrow SO  
16 QFN-EP*  
20 QFN-EP*  
G1644-1  
G2044-3  
*EP = Exposed pad.  
Pin Configuration/Functional Diagram/Truth Table  
TOP VIEW  
MAX4674  
NC1  
16  
A0  
15  
V+  
14  
EN  
13  
AO  
20  
N.C.  
19  
V+  
18  
N.C.  
17  
EN  
16  
A0  
NC1  
1
16 V+  
CONTROL LOGIC  
EN  
1
A0  
X
ON SWITCH  
NONE  
CONTROL LOGIC  
CONTROL LOGIC  
2
3
4
5
6
7
8
15 EN  
1
NC4  
1
NC4  
12  
15  
NO1  
NC1  
NO1  
0
0
COM1-NC1  
COM2-NC2  
COM3-NC3  
COM4-NC4  
COM1-NO1  
COM2-NO2  
COM3-NO3  
COM4-NO4  
NO1  
14 NC4  
13 NO4  
12 COM4  
11 NC3  
10 NO3  
COM1  
NC2  
NO4  
NO4  
COM1  
NC2  
2
3
4
2
3
14  
13  
12  
11  
10  
0
1
MAX4674  
NO2  
COM4  
COM1  
COM4  
NC3  
COM2  
GND  
MAX4674  
9
COM3  
NO2  
NC3  
NC2  
NO2  
4
9
QSOP/TSSOP/SO  
5
6
7
COM3  
QFN  
8
5
NO3  
11  
COM2  
GND  
NO3  
6
7
8
9
10  
COM2  
N.C.  
GND  
QFN  
N.C.  
COM3  
________________________________________________________________ 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.  
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
ABSOLUTE MAXIMUM RATINGS  
16-Pin Narrow SO (derate 8mW/°C above +70°C) ....640mW  
16-Pin QFN (derate 18.5mW/°C above +70°C) ........1481mW  
20-Pin QFN (derate 20mW/°C above +70°C) ...........1600mW  
V+, A0, EN................................................................-0.3V to +6V  
COM_, NO_, NC_ (Note1)...............................-0.3V to (V + 0.3V)  
Continuous Current COM_, NO_, NC_ .......................... 100mA  
Operating Temperature Range  
Peak Current (COM_, NO_, NC_)  
MAX4674E_E .................................................-40°C to +85°C  
Die Temperature ..............................................................+150°C  
Storage Temperature Range ............................-65°C to +150°C  
Lead Temperature (soldering, 10s) ................................+300°C  
(pulsed at 1ms, 10% duty cycle) .............................. 300mA  
Continuous Power Dissipation (T = +70°C)  
A
16-Pin QSOP (derate 8.3mW/°C above +70°C) ........ 667mW  
16-Pin TSSOP (derate 6.7mW/°C above +70°C) .......533mW  
Note 1: Signals on NO_, NC_, and COM_ exceeding V+ or GND are clamped by internal diodes. Limit forward-diode current to max-  
imum 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 CHARACTERISTICSSingle +5V Supply  
(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T  
to T  
, unless otherwise noted. Typical values at T = +25°C.) (Notes 2, 3)  
A
MAX  
IH  
IL  
A
MIN  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
ANALOG SWITCH  
V
,V  
NC_  
,
COM_ NO_  
Analog Signal Range  
0
V+  
4
V
V
T
= +25°C  
2.2  
0.15  
0.5  
A
V+ = 4.5V, I  
= 10mA,  
= 0 to V+  
COM_  
COM_  
COM_  
On-Resistance  
R
ON  
T
T
= T  
to  
A
MIN  
V
or V  
NO_  
NC_  
5
MAX  
T
A
= +25°C  
0.4  
0.5  
0.8  
1
On-Resistance Match Between  
Channels (Notes 4, 5)  
V+ = 4.5V, I  
or V  
= 10mA,  
= 0 to V+  
R  
ON  
T
T
= T  
to  
A
MIN  
V
NO_  
NC_  
MAX  
T
A
= +25°C  
On-Resistance Flatness  
(Note 6)  
V+ = 4.5V, I  
or V  
= 10mA,  
R
FLAT (ON)  
T
T
= T  
to  
A
MIN  
V
= 0 to V+  
NC_  
NO_  
MAX  
T
= +25°C  
-0.5  
-1  
0.01  
0.01  
0.01  
+0.5  
+1  
+0.5  
+1  
+0.5  
+1  
A
V+ = 5.5V; V  
= 1V,  
COM_  
NO_, NC_ Off-Leakage  
Current (Note 7)  
I
I
NO_(OFF),  
4.5V; V  
1V  
or V  
= 4.5V,  
nA  
nA  
nA  
NO_  
NC_  
T
T
= T  
to  
A
MIN  
NC_(OFF)  
MAX  
T
A
= +25°C  
-0.5  
-1  
V+ = 5.5V; V  
= 1V,  
COM_  
COM_ Off-Leakage Current  
(Note 7)  
I
4.5V; V  
1V  
or V  
= 4.5V,  
COM_(OFF)  
NO_  
NC_  
T
T
= T  
to  
A
MIN  
MAX  
T
A
= +25°C  
-0.5  
-1  
V+ = 5.5V; V  
= 1V,  
COM_  
COM_ On-Leakage Current  
(Note 7)  
I
4.5V; V  
or V  
= 1,  
COM_(ON)  
NO_  
NC_  
T
T
= T  
to  
A
MIN  
4.5V, or floating  
MAX  
DIGITAL I/O (A0, EN)  
Input Logic High  
Input Logic Low  
Input Leakage Current  
DYNAMIC  
V
2.4  
V
V
IH  
V
0.8  
IL  
I
V
= 0 or +5.5V  
-0.5  
1
+0.5  
µA  
IN  
IN  
10  
18  
20  
T
= +25°C  
A
V
or V  
= 3V,  
L
NO_  
NC_  
Turn-On Time (Note 7)  
t
R = 100, C = 35pF,  
Figure 2  
ns  
ON  
L
T
T
= T  
to  
A
MIN  
MAX  
2
_______________________________________________________________________________________  
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
ELECTRICAL CHARACTERISTICSSingle +5V Supply (continued)  
(V+ = +4.5V to +5.5V, V = 2.4V, V = 0.8V, T = T  
to T  
, unless otherwise noted. Typical values at T = +25°C.) (Notes 2, 3)  
A
MAX  
IH  
IL  
A
MIN  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
T
A
= +25°C  
4
6
V
or V  
= 3V,  
NC_  
NO_  
Turn-Off Time (Note 7)  
t
ns  
R = 100, C = 35pF,  
Figure 2  
OFF  
L
L
T
T
= T  
to  
A
MIN  
8
MAX  
T
A
= +25°C  
5
V
or V  
= 3V,  
NC_  
NO_  
Break-Before-Make (Note 7)  
t
R = 100, C = 35pF,  
Figure 3  
ns  
BBM  
Q
L
L
T
T
= T  
MAX  
to  
A
MIN  
1
V
= 4V, R = 0, C = 1.0nF, Figure 4  
GEN L  
GEN  
Charge Injection  
10  
-47  
pC  
dB  
f = 10MHz  
f = 1MHz  
f = 10MHz  
f = 1MHz  
C = 5pF, R = 100,  
L
L
Off-Isolation (Note 8)  
V
ISO  
f = 10MHz, Figure 5  
-67  
-68  
C = 5pF, R = 100,  
L
L
Crosstalk (Note 9)  
V
dB  
%
CT  
f = 10MHz, Figure 5  
-114  
0.015  
Total Harmonic Distortion  
NO_, NC_ Off-Capacitance  
THD  
R = 600, f = 20Hz to 20kHz  
L
C
C
NO_(OFF),  
V
, V  
NO_ NC_  
= GND, f = 1MHz, Figure 6  
10  
pF  
NC_(OFF)  
COM_ Off-Capacitance  
COM_ On-Capacitance  
SUPPLY  
C
V
V
= GND, f = 1MHz, Figure 6  
20  
30  
pF  
pF  
COM_(OFF)  
COM_  
C
= V , V  
NO_ NC_  
= GND, f = 1MHz, Figure 6  
(ON)  
COM_  
Supply Range  
V+  
I+  
1.8  
5.5  
1.0  
V
Positive Supply Current  
V+ = +5.5V, V = 0 or V+  
0.001  
µA  
IN  
ELECTRICAL CHARACTERISTICSSingle +3V Supply  
(V+ = +2.7V to +3.3V, V = 2.0V, V = 0.4V, T =T  
to T  
, unless otherwise noted. Typical values at T = +25°C.) (Notes 2, 3)  
MAX A  
IH  
IL  
A
MIN  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
ANALOG SWITCH  
V
, V  
NC_  
,
COM NO  
V
Analog Signal Range  
0
V+  
6
V
T
= +25°C  
4
A
V+ = 2.7V, I  
= 10mA,  
= 0 to V+  
COM_  
COM_  
COM_  
On-Resistance  
R
ON  
T
T
= T  
to  
A
MIN  
V
or V  
NO_  
NC_  
8
MAX  
T
A
= +25°C  
0.15  
2
0.4  
0.5  
3
On-Resistance Match Between  
Channels (Notes 4, 5)  
V+ = 2.7V, I  
or V  
= 10mA,  
= 0 to V+  
R  
ON  
T
T
= T  
to  
A
MIN  
V
NO_  
NC_  
MAX  
T
A
= +25°C  
On-Resistance Flatness  
(Note 6)  
V+ = 2.7V, I  
or V  
= 10mA,  
= 0 to V+  
R
FLAT(ON)  
T
T
= T  
to  
A
MIN  
V
NO_  
NC_  
4
MAX  
T
= +25°C  
-0.5  
-1  
0.01  
+0.5  
+1  
A
NO_, NC_ Off-Leakage  
Current (Note 7)  
I
I
V+ = 3.3V; V  
= 1V, 3V;  
COM_  
= 3V, 1V  
NO_(OFF),  
nA  
T
T
= T  
to  
A
MIN  
V
or V  
NC_(OFF)  
NO_  
NC_  
MAX  
_______________________________________________________________________________________  
3
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
ELECTRICAL CHARACTERISTICSSingle +3V Supply (continued)  
(V+ = +2.7V to +3.3V, V = 2.0V, V = 0.4V, T =T  
to T  
, unless otherwise noted. Typical values at T = +25°C.) (Notes 2, 3)  
MAX A  
IH  
IL  
A
MIN  
PARAMETER  
SYMBOL  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
T
= +25°C  
-0.5  
0.01  
+0.5  
A
COM_ Off-Leakage Current  
(Note 7)  
V+ = 3.3V; V  
= 1V, 3V;  
COM_  
= 3V, 1V  
I
nA  
COM_(OFF)  
T
T
= T  
to  
A
MIN  
V
or V  
NO_  
NC_  
-1  
-0.5  
-1  
+1  
+0.5  
+1  
MAX  
T
A
= +25°C  
0.01  
V+ = 3.3V; V  
= 1V, 3V;  
COM_  
COM_ On-Leakage Current  
(Note 7)  
I
V
or V = 1V, 3V, or  
NC_  
nA  
COM_(ON)  
NO_  
T
T
= T  
to  
A
MIN  
floating  
MAX  
DIGITAL I/O (A0, EN)  
Input Logic High  
Input Logic Low  
Input Leakage Current  
DYNAMIC  
V
2.0  
V
V
IH  
V
0.4  
IL  
I
V
= 0 or +5.5V  
-0.5  
1
+0.5  
µA  
IN  
IN  
T
= +25°C  
12  
22  
25  
8
A
V
or V  
= 1.5V,  
L
NO_  
NC_  
R = 100, C = 35pF,  
Figure 2  
Turn-On Time (Note 7)  
Turn-Off Time (Note 7)  
Break-Before-Make (Note 7)  
t
ns  
ns  
ns  
L
ON  
T
T
= T  
to  
A
MIN  
MAX  
T
A
= +25°C  
5
5
V
or V  
= 1.5V,  
NC_  
NO_  
R = 100, C = 35pF,  
Figure 2  
t
L
L
OFF  
T
T
= T  
to  
A
MIN  
10  
MAX  
T
A
= +25°C  
V
or V = 1.5V,  
NC  
NO_  
t
R = 100, C = 35pF,  
Figure 3  
BBM  
Q
L
L
T
T
= T  
MAX  
to  
A
MIN  
1
V
= 2V, R = 0, C = 1.0nF,  
GEN L  
GEN  
Charge Injection  
18  
pC  
dB  
dB  
Figure 4  
f = 10MHz  
f = 1MHz  
f = 10MHz  
f = 1MHz  
-47  
-67  
C = 5pF, R = 100,  
L
L
Off-Isolation (Note 8)  
Crosstalk (Note 9)  
V
ISO  
f = 10MHz, Figure 5  
-68  
C = 5pF, R = 100,  
L
L
V
CT  
f = 10MHz, Figure 5  
-114  
C
C
,
NO_(OFF)  
NO_, NC_ Off-Capacitance  
COM_ Off-Capacitance  
COM_ On-Capacitance  
V
or V  
= GND, f = 1MHz, Figure 6  
10  
20  
30  
pF  
pF  
pF  
NO_  
NC_  
NC_(OFF)  
C
V
V
= GND, f = 1MHz, Figure 6  
COM_(OFF)  
COM_  
COM_  
= V  
, V  
= GND, f = 1MHz,  
NO_ NC_  
C
(ON)  
Figure 6  
SUPPLY  
Positive Supply Current  
I+  
V+ = 3.3V, V = 0 or V+  
0.001  
1.0  
µA  
IN  
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 the maximum hot-rated temperature. Limits across the entire temperature range are guaranteed by  
design and correlation.  
Note 4: R  
= R  
- R  
.
ON  
Note 5: R  
ON(MAX)  
ON(MIN)  
matching specifications for QFN 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 range.  
Note 7: Guaranteed by design.  
Note 8: Off-Isolation = 20log (V  
/V ), V  
= output, V  
= input to off switch.  
10 COM NO  
COM  
NO  
Note 9: Between any two switches.  
4
_______________________________________________________________________________________  
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
Typical Operating Characteristics  
(V+ = +5V, T = +25°C, unless otherwise noted.)  
A
ON/OFF-LEAKAGE CURRENT  
ON-RESISTANCE vs. V  
COM  
ON-RESISTANCE vs. V  
COM  
vs. TEMPERATURE  
1000  
100  
10  
12  
10  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
T = +85°C  
A
I
ON_LEAK  
8
V+ = 1.8V  
V+ = 2.5V  
V+ = 3.0V  
6
4
2
0
T = +25°C  
A
I
OFF_LEAK  
T = -40°C  
A
V+ = 5.0V  
1
V+ = 5V  
1
0.1  
0
1
2
3
4
5
0
2
3
4
5
-40  
-15  
10  
35  
60  
85  
V
(V)  
V
(V)  
COM  
TEMPERATURE (°C)  
COM  
CHARGE INJECTION  
SUPPLY CURRENT  
vs. SUPPLY VOLTAGE  
TURN-ON/-OFF TIME  
vs. SUPPLY VOLTAGE  
vs. V  
COM  
25  
20  
15  
10  
5
40  
35  
30  
25  
20  
15  
10  
5
30  
25  
20  
15  
10  
5
t
ON  
t
OFF  
0
0
0
1
2
3
4
5
0
1
2
3
4
5
6
1
2
3
4
5
V
(V)  
V+ (V)  
V+ (V)  
COM  
TURN-ON/-OFF TIME  
vs. TEMPERATURE  
OFF-ISOLATION, ON-RESPONSE,  
AND CROSSTALK vs. FREQUENCY  
TOTAL HARMONIC DISTORTION  
vs. FREQUENCY  
12  
10  
8
20  
0.020  
0.018  
0.016  
t
ON  
0
-20  
ON-RESPONSE  
OFF-ISOLATION  
0.014  
0.012  
0.010  
0.008  
0.006  
0.004  
0.002  
-40  
6
-60  
t
OFF  
4
-80  
CROSSTALK  
2
-100  
-120  
0
-40  
-20  
0
20  
40  
60  
80  
0.01  
0.1  
1
10  
100  
1000  
10  
100  
1k  
10k  
100k  
TEMPERATURE (°C)  
FREQUENCY (MHz)  
FREQUENCY (Hz)  
_______________________________________________________________________________________  
5
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
Pin Description  
PIN  
NAME  
FUNCTION  
QSOP/TSSOP/SO  
20 QFN  
16 QFN  
1
2
20  
15  
16  
1
A0  
NC1  
NO1  
COM1  
NC2  
NO2  
COM2  
N.C.  
GND  
COM3  
NO3  
NC3  
COM4  
NO4  
NC4  
EN  
Address Input  
1
Normally Closed Terminal  
Normally Open Terminal  
3
2
4
3
2
Analog Switch Common Terminal  
Normally Closed Terminal  
Normally Open Terminal  
Analog Switch Common Terminal  
No Connection  
5
4
3
6
5
4
7
6
5
8
7, 9, 17, 19  
6
8
Ground  
9
10  
11  
12  
13  
14  
15  
16  
18  
EP  
7
Analog Switch Common Terminal  
Normally Open Terminal  
Normally Closed Terminal  
Analog Switch Common Terminal  
Normally Open Terminal  
Normally Closed Terminal  
Output Enable, Active Low  
Positive Supply Voltage  
Exposed Pad. Connect to GND.  
10  
11  
12  
13  
14  
15  
16  
8
9
10  
11  
12  
13  
14  
EP  
V+  
EP  
Detailed Description  
Applications Information  
Power-Supply Considerations  
The MAX4674 is a low on-resistance (R ), low-volt-  
ON  
age, quad 2:1 analog multiplexer/demultiplexer that  
operates from a +1.8V to +5.5V single supply. The  
Overview  
The MAX4674 construction is typical of most CMOS  
analog switches. It has two supply pins, V+ and GND,  
used to drive the internal CMOS switches and set the  
limits of the analog voltage on any switches. Reverse  
ESD-protection diodes are internally connected  
between each analog-signal pin and both V+ and  
GND. If any analog signal exceeds V+ and GND, one  
of these diodes conducts. During normal operation,  
these and other reverse-biased ESD diodes leak, form-  
MAX4674 features very fast switching speed (t  
=
ON  
18ns max, t  
= 6ns max) and guaranteed break-  
OFF  
before-make switching. Its low R  
allows high continu-  
ON  
ous currents to be switched in a variety of applications.  
Digital Interface  
A0 and EN are CMOS digital inputs that meet TTL logic  
levels when V+ = 5V. Note that A0 and EN can exceed  
the voltage at V+ to a maximum of +5.5V. This feature  
allows operation of the MAX4674 from a +3.3V supply  
while controlling it with 5V CMOS logic signals.  
ing the only current drawn from V  
or GND.  
CC  
Virtually all the analog leakage current comes from the  
ESD diodes. Although the ESD diodes on a given sig-  
nal pin are identical and therefore fairly well balanced,  
they are reverse biased differently. Each is biased by  
either V+ or GND and the analog signal. This means  
The Pin Configuration/Functional Diagram/Truth Table  
located on the first page of this data sheet details the  
operation of the MAX4674.  
6
_______________________________________________________________________________________  
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
their leakages will vary as the signal varies. The differ-  
ings can cause permanent damage to the device.  
Always sequence V+ on first, followed by the logic  
inputs and analog signals. If power-supply sequencing  
is not possible, add two small signal diodes (D1, D2) in  
series with the supply pins for overvoltage protection  
(Figure 1).  
ence in the two-diode leakages to the V+ and GND  
pins constitutes the analog-signal-path leakage current.  
All analog leakage current flows between each pin and  
one of the supply terminals, not to the other switch ter-  
minal, which is why both sides of a given switch can  
show leakage currents of either the same or opposite  
polarity.  
Adding diodes reduces the analog-signal range to one  
diode drop below V+ and one diode drop above GND,  
but does not affect the devices low switch resistance  
and low leakage characteristics. Device operation is  
unchanged, and the difference between V+ and GND  
should not exceed 6V. These protection diodes are not  
recommended if signal levels must extend to ground.  
V+ and GND power the internal logic and set the input  
logic limits. Logic inputs have ESD-protection diodes to  
ground.  
The logic-level thresholds are TTL/CMOS compatible  
when V+ is +5V. As V+ rises, the threshold increases;  
as V+ falls, the threshold decreases. For example,  
when V+ = +3V, the guaranteed minimum logic-high  
threshold decreases to 2.0V.  
High-Frequency Performance  
In 50systems, signal response is reasonably flat up  
to 50MHz (see the Typical Operating Characteristics).  
Above 20MHz, the on response has several minor  
peaks that are highly layout dependent. The problem is  
not turning the switch on, but turning it off. The off-state  
switch acts like a capacitor and passes higher frequen-  
cies with less attenuation. At 10MHz, off-isolation is  
about -50dB in 50systems, becoming worse (approx-  
imately 20dB per decade) as frequency increases.  
Higher circuit impedances also degrade off-isolation.  
Adjacent channel attenuation is about 3dB above that  
of a bare IC socket and is entirely due to capacitive  
coupling.  
Low-Voltage Operation  
The MAX4674 operates from a single supply between  
+1.8V and +5.5V. At room temperature, it actually  
workswith a single supply near or below +1.7V; as  
supply voltage decreases, however, switch on-resis-  
tance becomes very high.  
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-  
Chip Information  
TRANSISTOR COUNT: 478  
V+  
D1  
EXTERNAL  
BLOCKING DIODE  
MAX4674  
V+  
*
*
*
*
GND  
D2  
EXTERNAL  
BLOCKING DIODE  
GND  
*INTERNAL PROTECTION DIODES  
Figure 1. Overvoltage Protection Using External Blocking  
Diodes  
_______________________________________________________________________________________  
7
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
Test Circuits/Timing Diagrams  
V+  
t < 5ns  
F
R
V
+ 0.5V  
0
IH  
t < 5ns  
V
50%  
AO  
V
AO  
V+  
AO  
EN  
NO  
V
NO_  
V
OUT  
50Ω  
MAX4674  
90%  
NC  
COM  
V
OUT  
GND  
C *  
L
R
L
GND  
t
t
ON  
OFF  
*C INCLUDES STRAY CAPACITANCE.  
L
Figure 2. Turn-On and Turn-Off Times  
V+  
t < 5ns  
F
R
V
+ 0.5V  
0
V
IH  
V+  
AO  
t < 5ns  
V
AO  
50%  
NC, NO  
COM  
AO  
EN  
V
N_ _  
50Ω  
V
COM  
MAX4674  
90%  
V
OUT  
GND  
C *  
L
V
R
L
OUT  
0
t
BBM  
*C INCLUDES STRAY CAPACITANCE.  
L
Figure 3. Break-Before-Make Interval  
V+  
V+  
V+  
0
R
GEN  
V
EN  
NC, NO  
V+ OR GND  
AO  
EN  
V
GEN  
MAX4674  
V  
OUT  
V
OUT  
V
EN  
V
OUT  
COM  
GND  
C *  
L
50Ω  
V  
IS THE MEASURED VOLTAGE DUE TO CHARGE-  
OUT  
TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF.  
*C INCLUDES STRAY CAPACITANCE.  
L
Q = V  
C
L
OUT  
Figure 4. Charge Injection  
_______________________________________________________________________________________  
8
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
Test Circuits/Timing Diagrams (continued)  
V+  
V+  
10nF  
NETWORK  
ANALYZER  
V
V
IN  
50Ω  
50Ω  
OUT  
OFF-ISOLATION = 20log  
V
V+ OR GND  
NC, NO  
COM  
AO  
EN  
IN  
V
MAX4674  
OUT  
ON-LOSS = 20log  
V
IN  
V
OUT  
MEAS  
REF  
V
OUT  
CROSSTALK = 20log  
GND  
V
IN  
50Ω  
50Ω  
NOTES: MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT SOCKET TERMINALS.  
OFF-ISOLATION IS MEASURED BETWEEN COM AND "OFF" NO TERMINAL ON EACH SWITCH.  
ON-LOSS IS MEASURED BETWEEN COM AND "ON" NO TERMINAL ON EACH SWITCH.  
CROSSTALK IS MEASURED FROM ONE CHANNEL TO ALL OTHER CHANNELS.  
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.  
Figure 5. Off-Isolation, On-Loss, and Crosstalk  
V+  
V+  
NC, NO  
COM  
V+ OR GND  
AO  
EN  
MAX4674  
1MHz  
CAPACITANCE  
ANALYZER  
GND  
Figure 6. Capacitance  
_______________________________________________________________________________________  
9
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
Package Information  
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,  
go to www.maxim-ic.com/packages.)  
PACKAGE OUTLINE, QSOP .150", .025" LEAD PITCH  
1
21-0055  
F
1
PACKAGE OUTLINE, TSSOP 4.40mm BODY  
1
21-0066  
I
1
10 ______________________________________________________________________________________  
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
Package Information (continued)  
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,  
go to www.maxim-ic.com/packages.)  
INCHES  
MILLIMETERS  
DIM  
A
MIN  
MAX  
0.069  
0.010  
0.019  
0.010  
MIN  
1.35  
0.10  
0.35  
0.19  
MAX  
1.75  
0.25  
0.49  
0.25  
0.053  
0.004  
0.014  
0.007  
N
A1  
B
C
e
0.050 BSC  
1.27 BSC  
E
0.150  
0.228  
0.016  
0.157  
0.244  
0.050  
3.80  
5.80  
0.40  
4.00  
6.20  
1.27  
E
H
H
L
VARIATIONS:  
INCHES  
1
MILLIMETERS  
DIM  
D
MIN  
MAX  
0.197  
0.344  
0.394  
MIN  
4.80  
8.55  
9.80  
MAX  
5.00  
N
8
MS012  
AA  
TOP VIEW  
0.189  
0.337  
0.386  
D
8.75 14  
10.00 16  
AB  
D
AC  
D
C
A
B
0
-8  
e
A1  
L
FRONT VIEW  
SIDE VIEW  
PROPRIETARY INFORMATION  
TITLE:  
PACKAGE OUTLINE, .150" SOIC  
APPROVAL  
DOCUMENT CONTROL NO.  
REV.  
1
21-0041  
B
1
______________________________________________________________________________________ 11  
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
Package Information (continued)  
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,  
go to www.maxim-ic.com/packages.)  
PACKAGE OUTLINE  
12,16,20,24L QFN, 4x4x0.90 MM  
1
21-0106  
E
2
PACKAGE OUTLINE  
12,16,20,24L QFN, 4x4x0.90 MM  
2
21-0106  
E
2
12 ______________________________________________________________________________________  
3V/5V, 4, Wideband Quad  
2:1 Analog Multiplexer  
Package Information (continued)  
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,  
go to www.maxim-ic.com/packages.)  
PACKAGE OUTLINE  
12,16,20,24L QFN, 4x4x0.90 MM  
1
21-0106  
E
2
PACKAGE OUTLINE  
12,16,20,24L QFN, 4x4x0.90 MM  
2
21-0106  
E
2
Revision History  
Pages changed at Rev 3: 17, 1013  
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are  
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.  
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13  
© 2006 Maxim Integrated Products  
is a registered trademark of Maxim Integrated Products, Inc.  

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