MAX4704EUB [MAXIM]

Low-Voltage, 60ヘ,4:1 Analog Multiplexer in QFN; 低电压, 60ヘ, 4 : 1模拟多路复用器采用QFN
MAX4704EUB
型号: MAX4704EUB
厂家: MAXIM INTEGRATED PRODUCTS    MAXIM INTEGRATED PRODUCTS
描述:

Low-Voltage, 60ヘ,4:1 Analog Multiplexer in QFN
低电压, 60ヘ, 4 : 1模拟多路复用器采用QFN

复用器 光电二极管
文件: 总11页 (文件大小:374K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
19-2240; Rev 0; 10/01  
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
General Description  
Features  
The MAX4704 low-voltage, 4-channel analog multiplex-  
er operates from a single +1.8V to +5.5V supply. The  
MAX4704 features break-before-make switching action  
3mm x 3mm 12-Pin QFN Package  
Guaranteed On-Resistance:  
60(max) (+2.7V supply)  
40(max) (+5V supply)  
with a t  
= 60ns and t  
= 20ns at +3V.  
ON  
OFF  
When powered from a +2.7V supply, the device has a  
60(max) on-resistance (R ), with 3(max) R  
Guaranteed Match Between Channels: 3(max)  
ON  
ON  
matching and 5max R  
flatness. The digital logic  
ON  
Guaranteed Flatness Over Signal Range:  
5(max)  
inputs are 1.8V-logic compatible from a +2.7V to +3.3V  
supply. The MAX4704 is available in both a space-sav-  
ing 12-pin QFN (3mm x 3mm) package and a 10-pin  
µMAX package.  
Guaranteed Low Leakage Currents:  
100pA (max) at +25°C  
Switching Time: t  
= 60ns, t  
= 20ns  
ON  
OFF  
Applications  
+1.8V to +5.5V Single-Supply Operation  
MP3 Players  
Rail-to-Rail® Signal Handling  
-3dB Bandwidth: >200MHz  
Low Crosstalk: -90dB (1MHz)  
High Off-Isolation: -85dB (1MHz)  
Low 3pC Charge Injection  
THD: 0.02%  
Battery-Operated Equipment  
Relay Replacement  
Audio and Video Signal Routing  
Low-Voltage Data-Acquisition Systems  
Communications Circuits  
PCMCIA Cards  
Cellular Phones  
Modems  
+1.8V CMOS-Logic Compatible  
Ordering Information  
PART  
TEMP. RANGE  
-40°C to +85°C  
-40°C to +85°C  
PIN-PACKAGE  
MAX4704EGC  
MAX4704EUB  
12 QFN  
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.  
10 µMAX  
Pin Configurations  
MAX4704  
TOP VIEW  
COM NO0 ADDA  
12 11  
MAX4704  
10  
INH  
1
ADDB ADDA ON SWITCH  
NO2  
NO3  
NO1  
INH  
1
2
3
4
5
10 V+  
V+  
N.C.  
NO2  
1
2
3
9
8
7
ADDB  
N.C.  
X
0
0
1
1
X
0
1
0
1
NONE  
9
8
7
6
COM  
0
COM-NO0  
COM-NO1  
COM-NO2  
COM-NO3  
NO0  
0
ADDA  
ADDB  
LOGIC  
GND  
0
GND  
0
X = DON’T CARE  
N.C. = NO CONNECT  
µMAX  
4
5
6
NO3 NO1 INH  
QFN  
________________________________________________________________ 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.  
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
ABSOLUTE MAXIMUM RATINGS  
(Voltages Referenced to GND)  
Continuous Power Dissipation (T = +70°C)  
A
V+.............................................................................-0.3V to +6V  
All Other Pins (Note 1)................................ -0.3V to (V+ + 0.3V)  
Continuous Current COM, NO_........................................ 20mA  
Peak Current COM, NO_  
(pulsed at 1ms, 10% duty cycle).................................. 40mA  
ESD per Method 3015.7.......................................................>2kV  
10-Pin µMAX (derate 4.7mW/°C above +70°C)......... 330mW  
12-Pin QFN (derate 11.9mW/°C above +70°C) ......... 952mW  
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 INH, ADD_, NO_, and COM exceeding V+ or GND are clamped by internal diodes. 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 CHARACTERISTICSSingle +3V Supply  
(V+ = +2.7V to +3.3V, V = +1.4V, V = +0.5V, T = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +3V and  
IH  
IL  
A
T
A
= +25°C.) (Notes 2, 3)  
PARAMETER  
SYMBOL  
CONDITIONS  
T
MIN  
TYP  
MAX UNITS  
A
ANALOG SWITCH  
Analog Signal Range  
V
, V  
0
V+  
V
COM NO_  
+25°C  
50  
1
60  
70  
3
V+ = +2.7V, I  
= 5mA,  
= 5mA,  
= 5mA,  
COM  
COM  
COM  
On-Resistance  
R
ON  
V
= +1.3V  
T
T
T
T
to T  
NO_  
MIN  
MAX  
+25°C  
to T  
On-Resistance Match  
Between Channels (Note 4)  
V+ = +2.7V, I  
= +1.3V  
R  
ON  
V
NO_  
5
MIN  
MAX  
+25°C  
to T  
3
5
On-Resistance Flatness  
(Note 5)  
V+ = +2.7V, I  
R
FLAT (ON)  
V
= +1V, +1.3V, +1.8V  
NO_  
10  
0.1  
1
MIN  
MAX  
+25°C  
to T  
-0.1  
-1  
0.01  
NO_ Off-Leakage  
Current (Note 6)  
V+ = +3.3V, V  
= +0.3V, +3V  
COM  
I
nA  
NO_(OFF)  
V
= +3V, +0.3V  
NO_  
MIN  
MAX  
+25°C  
to T  
-0.5  
0.01  
0.01  
0.5  
COM On-Leakage Current  
(Note 6)  
V+ = +3.3V, V  
= +0.3V, +3V  
COM  
I
nA  
nA  
COM(ON)  
V
NO_  
= +0.3V, +3V, or floating  
T
T
-5  
-0.5  
-5  
5
0.5  
5
MIN  
MAX  
+25°C  
to T  
COM Off-Leakage Current  
(Note 6)  
V+ = +3.3V, V  
= +0.3V, +3V  
COM  
I
COM(OFF)  
V
= +3V, +0.3V  
NO_  
MIN  
MAX  
DYNAMIC  
+25°C  
to T  
20  
60  
70  
60  
70  
20  
30  
V
= +1.5V, R = 300,  
NO_  
L
Address Transition Time  
t
ns  
ns  
ns  
ns  
pC  
TRANS  
C = 35pF, Figure 2  
L
T
T
T
T
MIN  
MAX  
+25°C  
to T  
25  
10  
20  
V
_ = +1.5V, R = 300,  
L
NO  
Inhibit Turn-On Time  
Inhibit Turn-Off Time  
t
ON  
C = 35pF, Figure 3  
L
MIN  
MAX  
+25°C  
to T  
V
_ = +1.5V, R = 300,  
L
NO  
t
OFF  
C = 35pF, Figure 3  
L
MIN  
MAX  
+25°C  
to T  
Break-Before-Make Time  
(Note 7)  
V
_ = +1.5V, R = 300,  
NO L  
t
BBM  
C = 35pF, Figure 4  
L
2
MIN  
MAX  
V
= 0, R  
= 0, C = 1.0nF,  
GEN L  
GEN  
Charge Injection  
Q
2
Figure 5  
2
_______________________________________________________________________________________  
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
ELECTRICAL CHARACTERISTICSSingle +3V Supply (continued)  
(V+ = +2.7V to +3.3V, V = +1.4V, V = +0.5V, T = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +3V and  
IH  
IL  
A
T
A
= +25°C.) (Notes 2, 3)  
PARAMETER  
SYMBOL  
CONDITIONS  
T
MIN  
TYP  
MAX UNITS  
A
Signal = 0dBm, 50in and out,  
Figure 6  
On-Channel -3dB Bandwidth  
Off-Isolation (Note 8)  
Crosstalk (Note 9)  
BW  
>200  
MHz  
f = 1MHz, R = 50, C = 5pF,  
L
L
V
-85  
-90  
dB  
dB  
ISO  
Figure 6  
f = 1MHz, R = 50, C = 5pF,  
L
L
V
CT  
Figure 6  
NO_ Off-Capacitance  
COM On-Capacitance  
C
f = 1MHz, V _ = GND, Figure 7  
7
pF  
pF  
pF  
NO_(OFF)  
COM(ON)  
COM(OFF)  
NO  
C
f = 1MHz, V _ = GND, Figure 7  
19  
15  
NO  
COM Off-Capacitance  
DIGITAL I/O  
C
f = 1MHz, V _ = GND, Figure 7  
NO  
Input Logic High  
Input Logic Low  
V
1.4  
-1  
V
IH  
V
0.5  
1
V
IL  
Input Leakage Current  
SUPPLY  
I
, I  
IH IL  
ADD_, INH = 0 or V+  
µA  
Power-Supply Range  
Power-Supply Current  
V+  
I+  
1.8  
5.5  
1
V
V+ = +5.5V, ADD_, INH = 0 or V+  
µA  
ELECTRICAL CHARACTERISTICSSingle +5V Supply  
(V+ = +4.5V to +5.5V, V = +2.0V, V = +0.8V, T = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +5V and  
IH  
IL  
A
T
A
= +25°C.) (Notes 2, 3)  
PARAMETER  
SYMBOL  
CONDITIONS  
T
MIN  
TYP  
MAX UNITS  
A
ANALOG SWITCH  
Analog Signal Range  
V
, V  
0
V+  
V
COM NO_  
+25°C  
to T  
30  
1
40  
50  
2
V+ = +4.5V, I  
= 5mA,  
= 5mA,  
= 5mA,  
COM  
COM  
COM  
On-Resistance  
R
ON  
V
= +3.5V  
NO_  
T
T
T
T
T
MIN  
MAX  
+25°C  
to T  
On-Resistance Match  
Between Channels (Note 4)  
V+ = +4.5V, I  
= +3.5V  
R  
ON  
V
NO_  
3
MIN  
MAX  
+25°C  
to T  
3
5
On-Resistance Flatness  
(Note 5)  
V+ = +4.5V, I  
R
FLAT (ON)  
NO_(OFF)  
V
= +1V, +2.25V, +3.5V  
NO_  
10  
0.1  
1
MIN  
MAX  
+25°C  
to T  
-0.1  
-1  
0.01  
0.01  
NO_ Off-Leakage  
Current (Note 6)  
V+ = +5.5V, V  
= +0.5V, +5V  
COM  
I
nA  
nA  
V
= +5V, +0.5V  
NO_  
MIN  
MAX  
+25°C  
to T  
-0.5  
-5  
0.5  
5
COM On-Leakage Current  
(Note 6)  
V+ = +5.5V, V  
= +0.5V, +5V  
COM  
I
COM(ON)  
V
NO_  
= +0.5V, +5V, or floating  
MIN  
MAX  
_______________________________________________________________________________________  
3
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
ELECTRICAL CHARACTERISTICSSingle +5V Supply (continued)  
(V+ = +4.5V to +5.5V, V = +2.0V, V = +0.8V, T = -40°C to +85°C, unless otherwise noted. Typical values are at V+ = +5V and  
IH  
IL  
A
T
A
= +25°C.) (Notes 2, 3)  
PARAMETER  
SYMBOL  
CONDITIONS  
V+ = +5.5V, V = +0.5V, +5V  
T
MIN  
-0.5  
-5  
TYP  
MAX UNITS  
A
+25°C  
to T  
0.01  
0.5  
nA  
5
COM_  
COM Off-Leakage Current  
DYNAMIC  
I
COM(OFF)  
V
= +5V, +0.5V  
NO_  
T
MIN  
MAX  
+25°C  
to T  
15  
18  
9
35  
ns  
40  
V
= +3V, R = 300,  
NO_  
L
Address Transition Time  
t
TRANS  
C = 35pF, Figure 2  
L
T
T
T
T
MIN  
MAX  
+25°C  
to T  
35  
ns  
40  
V
= +3V, R = 300,  
L
NO_  
Inhibit Turn-On Time  
Inhibit Turn-Off Time  
t
ON  
C = 35pF, Figure 3  
L
MIN  
MAX  
+25°C  
to T  
20  
ns  
30  
V
= +3V, R = 300,  
L
NO_  
t
OFF  
C = 35pF, Figure 3  
L
MIN  
MAX  
+25°C  
to T  
20  
Break-Before-Make Time  
(Note 7)  
V
= +3V, R = 300,  
NO_ L  
t
ns  
pC  
BBM  
C = 35pF, Figure 4  
L
2
MIN  
MAX  
V
= 0, R  
= 0, C = 1.0nF,  
GEN L  
GEN  
Charge Injection  
Q
3
Figure 5  
Signal = 0dBm, 50in and out,  
Figure 6  
On-Channel -3dB Bandwidth  
Off-Isolation (Note 8)  
Crosstalk (Note 9)  
BW  
>200  
-85  
MHz  
dB  
f = 1MHz, R = 50, C = 5pF,  
L
L
V
ISO  
Figure 6  
f = 1MHz, R = 50, C = 5pF,  
L
L
V
-90  
dB  
%
CT  
Figure 6  
Total Harmonic Distortion  
DIGITAL I/O  
THD  
f = 20Hz to 20kHz, 1Vp-p, R = 600Ω  
0.02  
L
Input Logic High  
Input Logic Low  
V
2.0  
-1  
V
IH  
V
0.8  
1
V
IL  
Input Leakage Current  
SUPPLY  
I
, I  
IH IL  
ADD_, INH = 0 or V+  
µA  
Power-Supply Range  
Positive Supply Current  
V+  
I+  
1.8  
5.5  
1
V
V+ = +5.5V, ADD_, INH = 0 or V+  
µA  
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: -40°C specifications are guaranteed by design.  
Note 4: R  
= R  
- R  
.
ON  
ON(MAX)  
ON(MIN)  
Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the  
specified analog signal ranges.  
Note 6: Leakage currents are 100% tested at T = +85°C. Limits across the full temperature range are guaranteed by correlation.  
A
Note 7: Guaranteed by design.  
Note 8: Off-Isolation = 20log (V  
/ V  
), V  
NO_  
= output, V  
= input to off switch.  
NO_  
COM  
COM  
10  
Note 9: Between any two switches.  
4
_______________________________________________________________________________________  
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
Typical Operating Characteristics  
(T = +25°C, unless otherwise noted.)  
A
ON-RESISTANCE VS. V  
(V+ = 3V)  
ON-RESISTANCE VS. V  
(V+ = 5V)  
COM  
ON-RESISTANCE VS. V  
COM  
COM  
40  
35  
30  
25  
20  
15  
10  
5
25  
20  
15  
10  
5
90  
80  
T
= +85°C  
A
T
= +25°C  
= -40°C  
A
70  
60  
50  
40  
30  
20  
10  
0
V+ = 1.8V  
T
A
= +85°C  
A
T
A
T
= +25°C  
= -40°C  
V+ = 2.5V  
T
A
V+ = 3.0V  
V+ = 5.0V  
0
0
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
0
1
2
3
4
5
0
1
2
3
4
5
V (V)  
COM  
V
(V)  
V
(V)  
COM  
COM  
COM ON-LEAKAGE CURRENT  
vs. TEMPERATURE  
SUPPLY CURRENT VS.  
LOGIC INPUT VOLTAGE  
SUPPLY CURRENT VS. TEMPERATURE  
1000  
100  
10  
15  
1000  
100  
10  
V
= 0  
INH  
12  
9
V+ = +5V  
V+ = 5V  
V+ = 3V  
V+ = +3V  
6
1
V+ = +5V  
V+ = +3V  
3
V
3
= 0  
ADDB  
1
0
0.1  
-40  
-15  
10  
35  
60  
85  
-40  
-15  
10  
35  
60  
85  
0
1
2
4
5
TEMPERATURE (°C)  
TEMPERATURE (°C)  
ADDA (V)  
COM OFF-LEAKAGE CURRENT  
vs. TEMPERATURE  
INHIBIT TURN-ON/OFF TIME  
vs. SUPPLY VOLTAGE  
LOGIC THRESHOLD  
SUPPLY VOLTAGE  
VS.  
1000  
100  
10  
35  
30  
25  
20  
15  
10  
5
1.50  
1.25  
1.00  
0.75  
0.50  
0.25  
0
V
IH  
COM OFF, V+ = 3V  
COM OFF, V+ = 5V  
t
ON  
V
3
IL  
NO_ OFF, V+ = 5V  
t
OFF  
NO_ OFF, V+ = 3V  
1
-40  
-15  
10  
35  
60  
85  
1
2
3
4
5
0
1
2
4
5
TEMPERATURE (°C)  
SUPPLY VOLTAGE (V)  
V+ (V)  
_______________________________________________________________________________________  
5
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
Typical Operating Characteristics (continued)  
(T = +25°C, unless otherwise noted.)  
A
INHIBIT TURN-ON/OFF TIME  
FREQUENCY RESPONSE  
CHARGE INJECTION vs. V  
vs. TEMPERATURE  
COM  
0
-10  
10  
9
8
7
6
5
4
3
2
1
0
25  
ON-RESPONSE  
t
t
, V+ = 3V  
, V+ = 5V  
ON  
-20  
20  
15  
10  
5
-30  
ON  
-40  
-50  
-60  
-70  
t
t
, V+ = 3V  
, V+ = 5V  
OFF  
OFF-ISOLATION  
CROSSTALK  
-80  
V+ = 5V  
-90  
OFF  
-100  
-110  
-120  
V+ = 3V  
0
0.01  
0.1  
1
10  
100  
1000  
0
1
2
3
4
5
-40  
-15  
10  
35  
60  
85  
FREQUENCY (MHz)  
V
(V)  
TEMPERATURE (°C)  
COM  
ADDRESS TRANSITION TIME  
vs. TEMPERATURE  
ADDRESS TRANSITION TIME  
vs. SUPPLY VOLTAGE  
THD vs. FREQUENCY  
0.04  
0.03  
0.02  
0.01  
30  
25  
20  
15  
10  
5
25  
20  
15  
10  
5
V+ = 5V  
t
, V+ = 3V  
LH  
t
LH  
t
, V+ = 5V  
LH  
t
, V+ = 3V  
HL  
t
HL  
t
, V+ = 5V  
HL  
Vp-p = 1V  
= R  
R
= 600Ω  
OUT  
IN  
0
0
10  
100  
1k  
FREQUENCY (Hz)  
10k  
100k  
1
2
3
4
5
-40  
-15  
10  
35  
60  
85  
SUPPLY VOLTAGE (V)  
TEMPERATURE (°C)  
6
_______________________________________________________________________________________  
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
Pin Description  
PIN  
NAME  
FUNCTION  
µMAX  
QFN  
1
10  
1
V+  
Positive Supply Voltage  
2, 8  
3
N.C.  
NO2  
NO3  
NO1  
No Connection. Not internally connected.  
Analog Switch 2. Normally open.  
Analog Switch 3. Normally open.  
Analog Switch 1. Normally open.  
2
4
3
5
Inhibit. Connect to GND for normal operation. Connect to logic-level high to turn  
all switches off.  
4
6
INH  
5
6
7
8
9
7
GND  
ADDB  
ADDA  
NO0  
Ground  
9
Address Decoder Selection B  
Address Decoder Selection A  
Analog Switch 0. Normally open.  
Analog Switch Common Terminal  
10  
11  
12  
COM  
analog signal can dip below GND, add D2. Adding  
Detailed Description  
protection diodes reduces the analog range to a diode  
drop (about 0.7V) below V+ (for D1), and a diode drop  
above ground (for D2). On-resistance increases slightly  
at low supply voltages. Maximum supply voltage (V+)  
must not exceed +6V.  
The MAX4704 low-voltage, 4-channel analog multiplexer  
operates from a single +1.8V to +5.5V supply. When  
powered from a +2.7V supply, the device has a 60Ω  
(max) on-resistance (R ), with 3(max) R  
matching  
ON  
ON  
and 5(max) R  
flatness. The digital logic inputs are  
ON  
Adding protection diode D2 causes the logic threshold  
to be shifted relative to GND. TTL compatibility is not  
guaranteed when D2 is added.  
+1.8V-logic compatible from a +2.7V to +3.3V supply.  
Applications Information  
Protection diodes D1 and D2 also protect against some  
overvoltage situations. In the circuit in Figure 1, if the  
supply voltage is below the absolute maximum rating,  
and if a fault voltage up to the absolute maximum rating  
is applied to an analog signal pin, no damage will result.  
Digital Control Inputs  
The MAX4704 logic inputs are +1.8V CMOS logic com-  
patible for 3V operation and TTL compatible for 5V  
operation of V+. Driving ADD_ rail-to-rail minimizes  
power consumption.  
Analog Signal Levels  
Analog signals that range over the entire supply volt-  
age (V+ to GND) are passed with very little change in  
on-resistance (see Typical Operating Characteristics).  
The switches are bidirectional, so the NO_ and COM  
pins can be either inputs or outputs.  
POSITIVE SUPPLY  
D1  
V+  
MAX4704  
Power-Supply Sequencing and  
Overvoltage Protection  
NO  
COM  
Caution: Do not exceed the absolute maximum rat-  
ings because stresses beyond those listed may  
cause permanent damage to devices.  
V
g
Proper power-supply sequencing is recommended for  
all CMOS devices. Always apply V+ before applying  
analog signals, especially if the analog signal is not  
current limited. If this sequencing is not possible, and if  
the analog inputs are not current limited to <20mA, add  
a small-signal diode (D1) as shown in Figure 1. If the  
GND  
D2  
Figure 1. Overvoltage Protection Using Two External Blocking  
Diodes  
_______________________________________________________________________________________  
7
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
Test Circuits/Timing Diagrams  
V+  
V+  
V+  
0
50%  
V
ADD  
V
ADD  
NO0  
ADDA  
ADDB  
V
NO_  
NO1NO2  
V
NO0  
90%  
90%  
MAX4704  
NO3  
INH  
COM  
V
OUT  
GND  
V
OUT  
35pF  
0
300Ω  
t
TRANS  
t
TRANS  
Figure 2. Address Transition Time  
V+  
V+  
0
50%  
V
V
INH  
V+  
NO0  
ADDA  
V
NO_  
ADDB  
NO1NO3  
V
NO0  
90%  
90%  
MAX4704  
V
INH  
INH  
COM  
V
OUT  
GND  
OUT  
35pF  
0
300Ω  
t
t
ON  
OFF  
Figure 3. Inhibit Switching Times  
V+  
t < 5ns  
F
R
V+  
t < 5ns  
V
50%  
ADD  
V+  
V
ADD  
NO0N03  
ADDA  
ADDB  
V
NO_  
0
V
COM  
90%  
MAX4704  
V
OUT  
INH  
COM  
V
GND  
OUT  
35pF  
300Ω  
0
t
BBM  
Figure 4. Break-Before-Make Interval  
8
_______________________________________________________________________________________  
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
Test Circuits/Timing Diagrams (continued)  
V+  
V+  
V+  
V
INH  
V
= 0  
NO  
NO_  
0
CHANNEL  
SELECT  
ADDB  
ADDA  
MAX4704  
V  
V
OUT  
OUT  
V
INH  
V
OUT  
INH  
COM  
C
GND  
L
1000pF  
V  
IS THE MEASURED VOLTAGE DUE TO CHARGE-  
OUT  
TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF.  
Q = V X C  
OUT  
L
REPEAT TEST FOR EACH SECTION.  
Figure 5. Charge Injection  
10nF  
V+  
NETWORK  
ANALYZER  
V
V
IN  
OUT  
50Ω  
50Ω  
V+  
OFF-ISOLATION = 20log  
V
NO_  
ADDA  
ADDB  
IN  
CHANNEL  
SELECT  
MAX4704  
V
OUT  
ON-LOSS = 20log  
V
IN  
V
OUT  
MEAS.  
REF.  
INH  
COM  
V
OUT  
CROSSTALK = 20log  
GND  
V
IN  
50Ω  
50Ω  
MEASUREMENTS ARE STANDARDIZED AGAINST SHORT 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 (A, B) TO OTHER CHANNEL.  
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.  
Figure 6. Off-Isolation, On-Loss, and Crosstalk  
Chip Information  
V+  
V+  
TRANSISTOR COUNT: 256  
PROCESS: CMOS  
NO_  
NO_  
ADDA  
ADDB  
CHANNEL  
SELECT  
MAX4704  
1MHz  
CAPACITANCE  
ANALYZER  
INH  
COM  
GND  
Figure 7. NO_/COM Capacitance  
_______________________________________________________________________________________  
9
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
Package Information  
10 ______________________________________________________________________________________  
Low-Voltage, 60,  
4:1 Analog Multiplexer in QFN  
Package Information (continued)  
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  
© 2001 Maxim Integrated Products  
Printed USA  
is a registered trademark of Maxim Integrated Products.  

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