MAX4780EUE+T [MAXIM]

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MAX4780EUE+T
型号: MAX4780EUE+T
厂家: MAXIM INTEGRATED PRODUCTS    MAXIM INTEGRATED PRODUCTS
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19-2365; Rev 4; 3/09  
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
0/MAX784  
General Description  
Features  
The MAX4780/MAX4784 are low on-resistance, low-  
voltage, quad 2:1 analog multiplexers that operate from  
a single +1.6V to +4.2V supply. These devices have  
Single-Supply Operation from 1.6V to 4.2V  
Low R  
ON  
0.7Ω (+2.7V Supply)  
2Ω (+1.8V Supply)  
fast switching speeds (t  
= 20ns, t  
= 8ns), handle  
ON  
OFF  
rail-to-rail analog signals, and consume less than 1µW  
of quiescent power.  
0.1Ω R  
Flatness (+2.7V Supply)  
ON  
When powered from a +2.7V supply, the MAX4780/  
3mm x 3mm Thin QFN Package  
+1.8V CMOS Logic Compatible  
MAX4784 feature low 0.7Ω on-resistance (R ), and  
ON  
0.1Ω R  
flatness. The digital logic input is +1.8V  
CMOS-logic compatible when using a single +3V supply.  
ON  
Fast Switching: t  
= 20ns, t  
= 8ns  
OFF  
ON  
The MAX4780/MAX4784 are available in 16-pin TSSOP  
and 3mm x 3mm thin QFN packages.  
Applications  
Power Routing  
Ordering Information  
Battery-Powered Systems  
Audio and Video Signal Routing  
Low-Voltage Data-Acquisition Systems  
Communications Circuits  
PCMCIA Cards  
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 Thin QFN-EP*  
16 TSSOP  
MAX4780ETE  
MAX4780EUE  
MAX4784ETE  
MAX4784EUE  
16 Thin QFN-EP*  
16 TSSOP  
Cellular Phones  
*EP = Exposed pad.  
Modems  
Hard Drives  
Pin Configurations/Functional Diagrams/Truth Tables  
TOP VIEW  
NC1  
16  
A0  
15  
V+  
14  
A1  
13  
NC1  
16  
A0  
15  
V+  
14  
EN  
13  
MAX4780  
ON SWITCH  
A0  
0
NC1, NC2  
CONTROL LOGIC  
1
NO1, NO2  
1
1
2
3
12 NC4  
12 NC4  
NO1  
NO1  
A1  
0
1
ON SWITCH  
NC3, NC4  
NO3, NO4  
NO4  
11  
NO4  
11  
COM1  
COM1  
2
3
MAX4784  
MAX4780  
MAX4784  
EN  
1
A0  
X
ON SWITCH  
NONE  
COM4  
COM4  
NC2  
NO2  
NC2  
NO2  
10  
9
10  
9
COM1-NC1  
COM2-NC2  
COM3-NC3  
COM4-NC4  
COM1-NO1  
COM2-NO2  
COM3-NO3  
COM4-NO4  
0
0
0
1
NC3  
NC3  
4
4
5
6
7
8
5
6
7
8
COM2  
GND  
COM3  
NO3  
COM2  
GND  
COM3  
NO3  
THIN QFN-EP  
Pin Configurations/Functional Diagrams/Truth Tables continued at end of data sheet.  
THIN QFN-EP  
________________________________________________________________ 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.  
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
ABSOLUTE MAXIMUM RATINGS  
Voltages Referenced to GND  
Continuous Power Dissipation (T = +70°C)  
A
V+, A_, EN..........................................................-0.3V to +4.6V  
COM_, NO_, NC_ (Note 1) ........................-0.3V to (V+ + 0.3V)  
Continuous Current COM_ , NO_, NC_ ......................... 300mA  
Peak Current COM_, NO_, NC_  
16-Pin Thin QFN (derate 14.7mW/°C  
above +70°C)......................................................1176.5mW  
16-Pin TSSOP (derate 9.4mW/°C above +70°C) .........755mW  
Operating Temperature Range ...........................-40°C to +85°C  
Maximum Junction Temperature .....................................+150°C  
Storage Temperature Range.............................-65°C to +150°C  
Lead Temperature (soldering, 10s) .................................+300°C  
(pulsed at 1ms 10% duty cycle).................................. 500mA  
Note 1: Signals on COM_, NO_, or NC_ exceeding V+ or GND are clamped by internal diodes. Limit forward 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—Single +3V Supply  
(V+ = +2.7V to +4.2V, V = +1.4V, V = +0.5V, T = T  
to T  
, unless otherwise specified. Typical values are at V+ = +3.0V,  
MAX  
IH  
IL  
A
MIN  
T
A
= +25°C.) (Notes 2, 3)  
0/MAX784  
PARAMETER  
SYMBOL  
CONDITIONS  
T
MIN  
TYP  
MAX  
UNITS  
A
ANALOG SWITCH  
V
_,  
COM  
V
_,  
Analog Signal Range  
0
V+  
V
NO  
V
_
NC  
V+ = 2.7V,  
_ = 100mA,  
+25°C  
to T  
0.7  
1
On-Resistance (Note 4)  
R
I
Ω
ON  
COM  
V
_ or V _ = 1.5V  
T
T
T
T
1.2  
0.15  
0.2  
0.2  
0.3  
+1  
NO  
NC  
MIN  
MAX  
On-Resistance Match  
Between Channels  
(Notes 4, 5)  
V+ = 2.7V,  
_ = 100mA,  
+25°C  
to T  
0.1  
ΔR  
I
Ω
Ω
ON  
COM  
V
_ or V _ = 1.5V  
NC  
NO  
MIN  
MAX  
V+ = 2.7V,  
I _ = 100mA;  
COM  
+25°C  
to T  
0.1  
On-Resistance Flatness  
(Note 6)  
R
FLAT(ON)  
V
_ or V _ = 1V, 1.5V, 2V  
NC  
NO  
MIN  
MAX  
V+ = 3.6V;  
+25°C  
to T  
-1  
-5  
-1  
0.002  
0.002  
NO_ or NC_ Off-Leakage  
Current (Note 7)  
I
I
,
NO_(OFF)  
V
V
_ = 0.3V, 3.3V;  
nA  
COM  
NC_(OFF)  
_ or V _ = 3.3V, 0.3V  
+5  
NO  
NC  
MIN  
MAX  
V+ = 3.6V;  
+25°C  
to T  
+1  
COM_ Off-Leakage Current  
(MAX4784 Only) (Note 7)  
V
V
_ = 0.3V, 3.3V;  
COM  
I
nA  
nA  
COM_(OFF)  
_ or V _ = 3.3V, 0.3V,  
NO  
NC  
T
-5  
-2  
+5  
+2  
MIN  
MAX  
or unconnected  
V+ = 3.6V;  
+25°C  
to T  
0.002  
V
V
_ = 3.3V, 0.3V;  
COM_ On-Leakage Current  
(Note 7)  
COM  
I
COM_(ON)  
_ or V _ = 3.3V, 0.3V,  
NO  
NC  
T
-10  
+10  
MIN  
MAX  
or unconnected  
2
_______________________________________________________________________________________  
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
0/MAX784  
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)  
(V+ = +2.7V to +4.2V, V = +1.4V, V = +0.5V, T = T  
to T  
, unless otherwise specified. Typical values are at V+ = +3.0V,  
MAX  
IH  
IL  
A
MIN  
T
A
= +25°C.) (Notes 2, 3)  
PARAMETER  
SYMBOL  
CONDITIONS  
T
MIN  
TYP  
MAX  
UNITS  
ns  
A
SWITCH DYNAMIC CHARACTERISTICS  
V
_, V _ = 1.5V,  
+25°C  
to T  
20  
25  
30  
10  
18  
NO  
NC  
Turn-On Time  
Turn-Off Time  
t
R = 50Ω, C = 35pF,  
ON  
L
L
Figure 1  
T
T
T
MIN  
MAX  
V
_, V _ = 1.5V,  
+25°C  
to T  
8
7
NO  
NC  
t
R = 50Ω, C = 35pF,  
ns  
OFF  
L
L
Figure 1  
MIN  
MAX  
V
_, V _ = 1.5V,  
+25°C  
to T  
NO  
NC  
Break-Before-Make (Note 8)  
Charge Injection  
t
R = 50Ω, C = 35pF,  
ns  
BBM  
Q
L
L
Figure 2  
1
MIN  
MAX  
V
= 0, R  
= 0,  
GEN  
GEN  
+25°C  
5
pC  
C = 1.0nF, Figure 3  
L
NO_ or NC_ Off-Capacitance  
COM_ Off-Capacitance  
COM_ On-Capacitance  
C
f = 1MHz, Figure 4  
f = 1MHz, Figure 4  
f = 1MHz, Figure 4  
+25°C  
+25°C  
+25°C  
33  
60  
85  
pF  
pF  
pF  
OFF  
C
C
COM_(OFF)  
COM_(ON)  
Signal = 0, R = R  
=
OUT  
IN  
-3dB On-Channel Bandwidth  
Off-Isolation (Note 9)  
BW  
123  
-67  
MHz  
dB  
dB  
%
50Ω, C = 5pF, Figure 5  
L
f = 1MHz, V  
_ = 1V  
,
COM  
P-P  
V
+25°C  
+25°C  
+25°C  
ISO  
R = 50Ω, C = 5pF, Figure 5  
L
L
f = 1MHz, V  
_ = 1V , R  
P-P L  
COM  
Crosstalk (Note 10)  
V
-95  
CT  
= 50Ω, C = 5pF, Figures 4, 5  
L
f = 20Hz to 20kHz,  
Total Harmonic Distortion  
THD  
0.008  
V
_ = 2V , R = 32Ω  
COM P-P L  
LOGIC INPUT (A_, EN)  
Input Logic-High  
V
1.8  
-1  
V
V
IH  
Input Logic-Low  
V
0.5  
+1  
IL  
V
V
= 0 or +3.6V,  
= 0 or +3.6V  
EN  
Input Leakage Current  
I
0.005  
µA  
IN  
A0  
POWER SUPPLY  
Power-Supply Range  
V+  
I+  
1.6  
3.6  
2
V
V+ = 3.6V, EN, A0 = 0 or V+,  
all channels on or off  
Positive Supply Current  
T
MIN  
to T  
µA  
MAX  
_______________________________________________________________________________________  
3
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
ELECTRICAL CHARACTERISTICS—Single +1.8V Supply  
(V+ = +1.8V, V = +1.0V, V = +0.4V, T = T  
to T  
, unless otherwise specified. Typical values are at T = +25°C.)  
MAX A  
IH  
IL  
A
MIN  
(Notes 2, 3)  
PARAMETER  
ANALOG SWITCH  
SYMBOL  
CONDITIONS  
T
MIN  
TYP  
MAX  
UNITS  
A
V
_,  
COM  
V
V
_,  
Analog Signal Range  
On-Resistance  
0
V+  
V
Ω
NO  
_
NC  
+25°C  
to T  
2
3
5
I
V
_ = 10mA,  
_ or V _ = 1.0V  
NC  
COM  
R
ON  
NO  
T
T
MIN  
MAX  
V
V
0.3V  
_ = 0.3V, 1.5V;  
COM  
+25°C  
to T  
-1  
-5  
+1  
+5  
NO_ or NC_ Off-Leakage  
Current (Note 7)  
I
I
,
NO_(OFF)  
nA  
_ or V _ = 1.5V,  
NO  
NC  
NC_(OFF)  
MIN  
MAX  
V
V
0.3V  
_ = 0.3V, 1.5V;  
COM  
+25°C  
to T  
-1  
+1  
COM_ Off-Leakage Current  
(MAX4784 Only) (Note 7)  
I
nA  
nA  
_ or V _ = 1.5V,  
COM_(OFF)  
NO  
NC  
T
T
-5  
+5  
MIN  
MAX  
0/MAX784  
V
V
_= 0.3V, 1.5V;  
COM  
+25°C  
to T  
-2  
+2  
COM_ On-Leakage Current  
(Note 7)  
I
_ or V _ = 0.3V,  
NC  
COM_(ON)  
NO  
-10  
+10  
MIN  
MAX  
1.5V, or unconnected  
SWITCH DYNAMIC CHARACTERISTICS  
V
R
_, V _ = 1.0V,  
NC  
NO  
+25°C  
to T  
25  
10  
10  
30  
35  
15  
20  
Turn-On Time  
Turn-Off Time  
t
= 50Ω, C = 35pF,  
ns  
ns  
ON  
L
L
T
T
T
MIN  
MAX  
Figure 1  
V
_, V _ = 1.0V,  
+25°C  
to T  
NO  
NC  
R = 50Ω, C = 35pF,  
Figure 1  
t
L
L
OFF  
MIN  
MAX  
V
_, V _ = 1.0V,  
NC  
+25°C  
to T  
NO  
Break-Before-Make (Note 8)  
Charge Injection  
t
R = 50Ω, C = 35pF,  
Figure 2  
ns  
BBM  
Q
L
L
1
MIN  
MAX  
V
= 0, R  
= 0,  
GEN  
GEN  
+25°C  
5
pC  
C = 1nF, Figure 3  
L
4
_______________________________________________________________________________________  
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
0/MAX784  
ELECTRICAL CHARACTERISTICS—Single +1.8V Supply (continued)  
(V+ = +1.8V, V = +1.0V, V = +0.4V, T = T  
to T  
, unless otherwise specified. Typical values are at T = +25°C.)  
MAX A  
IH  
IL  
A
MIN  
(Notes 2, 3)  
PARAMETER  
LOGIC INPUT (A_, EN)  
Input Logic-High  
SYMBOL  
CONDITIONS  
T
MIN  
TYP  
MAX  
UNITS  
A
V
1.8  
V
V
IH  
Input Logic-Low  
V
0.4  
+1  
IL  
V
V
= 0 or +3.6V,  
= 0 or +3.6V  
EN  
Input Leakage Current  
I
-1  
µA  
IN  
A0  
Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value is a maximum, is  
used in this data sheet.  
Note 3: -40°C specifications are guaranteed by design.  
Note 4:  
R
ON  
and ΔR  
matching specifications for QFN packaged parts are guaranteed by design.  
ON  
Note 5: ΔR  
= R  
- R  
.
ON(MIN)  
ON  
ON(MAX)  
Note 6: Flatness is defined as the difference between the maximum and the minimum value of on-resistance as measured over the  
specified analog signal ranges.  
Note 7: Leakage parameters are 100% tested at T = +85°C, and guaranteed by correlation over the full rated temperature range.  
A
Note 8: Guaranteed by design.  
Note 9: Off-isolation = 20log (V  
_/V _), V  
_ = output, V _ = input to off switch.  
COM NO  
10 COM  
NO  
Note 10: Between two switches.  
Note 11: Parts are guaranteed to 1 million cycles of operation. (Cycle = switch on switch off switch on.)  
Note 12: The minimum load resistance is 8Ω. (See the Typical Application Circuit.)  
Typical Operating Characteristics  
(T = +25°C, unless otherwise noted.)  
A
ON/OFF-LEAKAGE CURRENT  
vs. TEMPERATURE  
ON-RESISTANCE vs. V  
AND TEMPERATURE  
COM  
ON-RESISTANCE vs. V  
COM  
3.0  
2.5  
2.0  
1.5  
1.0  
0.5  
0
10,000  
1000  
100  
10  
2.0  
1.8  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
V+ = +1.8V, T = -40°C  
A
V+ = +1.6V  
OFF, V+ = +3.0V  
ON, V+ = +3.0V  
V+ = +1.8V, T = +25°C  
A
V+ = +1.8V, T = +85°C  
A
V+ = +1.8V  
V+ = +2.5V  
V+ = +3.0V, T = +85°C  
A
ON, V+ = +1.8V  
OFF, V+ = +1.8V  
V+ = +2.7V  
V+ = +3.0V, T = +25°C  
A
V+ = +3.0V, T = -40°C  
A
V+ = +3.0V  
V+ = +3.6V  
0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6  
(V)  
1
0
-40  
-15  
10  
35  
60  
85  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
V
COM  
TEMPERATURE (°C)  
V
COM  
(V)  
_______________________________________________________________________________________  
5
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
Typical Operating Characteristics (continued)  
(T = +25°C, unless otherwise noted.)  
A
LOGIC-LEVEL THRESHOLD  
vs. SUPPLY VOLTAGE  
SUPPLY CURRENT vs. SUPPLY  
VOLTAGE AND TEMPERATURE  
CHARGE INJECTION  
vs. V  
COM  
10,000  
1000  
100  
10  
1.1  
1.0  
0.9  
0.8  
0.7  
0.6  
0.5  
0.4  
50  
40  
30  
20  
10  
0
RISING  
T
A
= +85°C  
V+ = +3.0V  
T
A
= +25°C  
1
FALLING  
0.1  
T
A
= -40°C  
0.01  
0.001  
V+ = +1.8V  
1.0  
2.0  
3.6  
0
0.4 0.8 1.2 1.6  
2.4 2.8 3.2  
1.6  
2.0  
2.4  
2.8  
3.2  
3.6  
0
0.5  
1.5  
2.0  
2.5  
3.0  
0/MAX784  
SUPPLY VOLTAGE (V)  
SUPPLY VOLTAGE (V)  
V
COM  
(V)  
TURN-ON/OFF TIME  
vs. SUPPLY VOLTAGE  
TURN-ON/OFF TIMES  
vs. TEMPERATURE  
50  
45  
40  
35  
50  
45  
40  
35  
30  
25  
20  
15  
10  
5
t
, V+ = +1.8V  
ON  
30  
25  
20  
t
, V+ = +3.0V  
ON  
t
ON  
15  
10  
5
t
, V+ = +1.8V  
OFF  
t
OFF  
t
, V+ = +3.0V  
OFF  
0
0
1.6  
2.0  
2.4  
2.8  
3.2  
3.6  
-40  
-15  
10  
35  
60  
85  
SUPPLY VOLTAGE (V)  
TEMPERATURE (°C)  
TOTAL HARMONIC DISTORTION  
vs. FREQUENCY  
FREQUENCY RESPONSE  
0.05  
15  
R = 32Ω  
L
0
-15  
ON-RESPONSE  
0.04  
0.03  
0.02  
0.01  
0
V+ = +1.8V,  
= +1.2V  
-30  
V
COM  
P-P  
-45  
OFF-ISOLATION  
-60  
CROSSTALK  
-75  
V+ = +3.0V,  
V
COM  
= +2V  
P-P  
-90  
-105  
-120  
10  
100  
1k  
10k  
100k  
0.01  
0.1  
1
10  
100  
1000  
FREQUENCY (Hz)  
FREQUENCY (MHz)  
6
_______________________________________________________________________________________  
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
0/MAX784  
Pin Description  
PIN  
NAME  
FUNCTION  
MAX4780  
MAX4784  
TSSOP THIN QFN-EP TSSOP THIN QFN-EP  
1
2
15  
16  
1
1
2
15  
16  
1
A0  
NC1  
Address Input  
Normally Closed Terminal  
Normally Open Terminal  
3
3
NO1  
COM1  
NC2  
4
2
4
2
Analog Switch Common Terminal  
Normally Closed Terminal  
Normally Open Terminal  
Analog Switch Common Terminal  
Ground  
5
3
5
3
6
4
6
4
NO2  
COM2  
GND  
COM3  
NO3  
NC3  
7
5
7
5
8
6
8
6
9
7
9
7
Analog Switch Common Terminal  
Normally Open Terminal  
Normally Closed Terminal  
Analog Switch Common Terminal  
Normally Open Terminal  
Normally Closed Terminal  
Address Input  
10  
11  
12  
13  
14  
15  
8
10  
11  
12  
13  
14  
8
9
9
10  
11  
12  
13  
10  
11  
12  
COM4  
NO4  
NC4  
A1  
Enable. Connect to GND for normal operation.  
Connect to logic-level high to turn all switches off.  
15  
16  
13  
14  
EN  
16  
14  
V+  
Positive Supply Voltage  
Exposed Pad. Internally connected to GND. Connect to a large  
ground plane to maximize thermal performance. Not intended as an  
electrical connection point. (Thin QFN package only.)  
EP  
Detailed Description  
Typical Application Circuit  
The MAX4780/MAX4784 are low 0.7Ω (at V+ = +2.7V)  
on-resistance, low-voltage, quad 2:1 analog multiplexers/  
demultiplexers that operate from a +1.6V to +4.2V single  
supply. CMOS switch construction allows switching  
analog signals that are within the supply voltage range  
(GND to V+).  
RING TONE/  
MAX4780  
MELODY IC  
When powered from a +2.7V supply, the 0.7Ω R  
allows high continuous currents to be switched in a  
variety of applications.  
ON  
INTERNAL  
SPEAKER  
R = 8Ω  
L
AUDIO  
CODEC  
Applications Information  
Proper power-supply sequencing is recommended for all  
CMOS devices. Do not exceed the absolute maximum  
ratings, because stresses beyond the listed ratings can  
cause permanent damage to the devices. Always  
sequence V+ on first, followed by NO_, NC_, or COM_.  
EXTERNAL  
SPEAKER  
R = 8Ω OR 32Ω  
L
SYSTEM  
CONTROLLER  
Although it is not required, power-supply bypassing  
improves noise margin and prevents switching noise  
propagation from the V+ supply to other components. A  
0.1µF capacitor, connected from V+ to GND, is adequate  
for most applications.  
1.6V TO 4.2V  
V
CC  
_______________________________________________________________________________________  
7
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
resistance (see the Typical Operating Characteristics).  
The switches are bidirectional, so the NO_, NC_, and  
COM_ pins can be used as either inputs or outputs.  
Logic Inputs  
The MAX4780/MAX4784 logic inputs can be driven up  
to +4.2V regardless of the supply voltage. For example,  
with a +1.8V supply, A_ and EN may be driven low to  
GND and high to +4.2V. Driving A_ and EN rail-to-rail  
minimizes power consumption. Drive EN low to enable  
the COM_ outputs. When EN is high, the COM_ outputs  
are high impedance.  
Layout  
High-speed switches require proper layout and design  
procedures for optimum performance. Reduce stray  
inductance and capacitance by keeping traces short  
and wide. Ensure that bypass capacitors are as close  
to the device as possible. Use large ground planes  
where possible.  
Analog Signal Levels  
Analog signals that range over the entire supply voltage  
(V+ to GND) can be passed with very little change in on-  
Test Circuits/Timing Diagrams  
V+  
t
< 5ns  
R
V
V
+ 0.5V  
IH  
t < 5ns  
F
50%  
A0  
V
A0  
V+  
0/MAX784  
0
A0  
NO  
V
NO_  
V
OUT  
MAX4780/  
MAX4784  
90%  
NC  
EN**  
COM  
V
OUT  
GND  
C *  
L
R
L
GND  
t
t
ON  
OFF  
*C INCLUDES STRAY CAPACITANCE.  
L
**MAX4784 ONLY.  
Figure 1. Turn-On and Turn-Off Times  
V+  
t
< 5ns  
R
V
V
+ 0.5V  
V
A0  
IH  
V+  
t < 5ns  
F
50%  
A0  
NC, NO  
A0  
V
N_ _  
0
MAX4780/  
MAX4784  
V
COM  
90%  
EN**  
V
OUT  
COM  
GND  
C *  
L
V
R
L
OUT  
0
t
BBM  
*C INCLUDES STRAY CAPACITANCE.  
L
**MAX4784 ONLY.  
Figure 2. Break-Before-Make Interval  
8
_______________________________________________________________________________________  
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
0/MAX784  
Test Circuits/Timing Diagrams (continued)  
V+  
V+  
V+  
0
R
V
GEN  
EN  
NC, NO  
V+ OR GND  
A0  
V
GEN  
MAX4780/  
MAX4784  
Δ V  
V
OUT  
OUT  
V
EN  
EN**  
V
OUT  
COM  
GND  
C *  
L
Δ V  
IS THE MEASURED VOLTAGE DUE TO CHARGE-  
OUT  
TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF.  
*C INCLUDES STRAY CAPACITANCE.  
L
Q = Δ V  
C
L
OUT  
**MAX4784 ONLY.  
Figure 3. Charge Injection  
V+  
V+  
NC, NO  
COM  
V+ OR GND  
A0  
MAX4780/  
MAX4784  
1MHz  
EN*  
CAPACITANCE  
ANALYZER  
GND  
*MAX4784 ONLY.  
Figure 4. Capacitance  
V+  
V+  
10nF  
NETWORK  
ANALYZER  
V
V
IN  
50Ω  
50Ω  
OUT  
OFF-ISOLATION = 20log  
V
V+ OR GND  
NC, NO  
COM  
A0  
IN  
V
MAX4780/  
MAX4784  
OUT  
ON-LOSS = 20log  
V
IN  
V
OUT  
MEAS  
REF  
EN*  
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.  
*MAX4784 ONLY.  
Figure 5. Off-Isolation, On-Loss, and Crosstalk  
_______________________________________________________________________________________  
9
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
Pin Configurations/Functional Diagrams/Truth Tables (continued)  
TOP VIEW  
MAX4780  
MAX4784  
A0  
NC1  
1
2
3
4
5
6
7
8
16 V+  
A0  
NC1  
1
2
3
4
5
6
7
8
16 V+  
CONTROL LOGIC  
15 A1  
15 EN  
NO1  
14 NC4  
13 NO4  
12 COM4  
11 NC3  
10 NO3  
NO1  
14 NC4  
13 NO4  
12 COM4  
11 NC3  
10 NO3  
COM1  
NC2  
COM1  
NC2  
NO2  
NO2  
COM2  
GND  
COM2  
GND  
9
COM3  
9
COM3  
0/MAX784  
TSSOP  
TSSOP  
Package Information  
Chip Information  
For the latest package outline information and land patterns, go  
PROCESS: CMOS  
to www.maxim-ic.com/packages.  
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.  
16 TQFN  
T1633+4  
U16+2  
21-0136  
21-0066  
16 TSSOP  
10 ______________________________________________________________________________________  
Ω
0.7 , Low-Voltage, Quad 2:1 Analog  
Multiplexers  
0/MAX784  
Revision History  
REVISION  
NUMBER  
REVISION  
DATE  
PAGES  
DESCRIPTION  
CHANGED  
0
1
2
3
4
4/02  
1/04  
9/04  
12/04  
3/09  
Initial release  
Added MAX4780  
Changed Ab max voltage  
Change operation to 4.2V  
Added exposed pad information  
1, 2, 4, 7, 10,  
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 ____________________ 11  
© 2009 Maxim Integrated Products  
Maxim is a registered trademark of Maxim Integrated Products, Inc.  

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