MAX4524LETB+T [MAXIM]
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19-1332; Rev 0; 1/98
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
/MAX425
________________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
♦ Tiny 10-Pin µMAX Package
The MAX4524/MAX4525 are low-voltage, single-supply
CMOS analog switches configured as a 4-channel mul-
tip le xe r/d e multip le xe r (MAX4524) a nd a d oub le -
p ole /d oub le -throw (DPDT) s witc h (MAX4525). Both
have an inhibit input to simultaneously open all signal
paths.
♦ Single-Supply Operation from +2V to +12V
♦ 200Ω On-Resistance with +5V Supply
♦ 500Ω On-Resistance with +3V Supply
♦ Guaranteed 8Ω On-Resistance Match at +5V
♦ Guaranteed 2nA Max On-Leakage at +5V
♦ TTL/CMOS-Logic Compatible
These devices operate from a single supply of +2V to
+12V and are optimized for operation with +3V or +5V
supplies. On-resistance is 200Ω with a +5V supply and
500Ω with a +3V supply. Each switch can handle Rail-
®
to-Rail analog signals. The off-leakage current is only
2nA at +25°C or 20nA at +85°C.
_______________Ord e rin g In fo rm a t io n
All digital inputs have 0.8V to 2.4V logic thresholds,
ensuring TTL/CMOS-logic compatibility when using a
single +5V supply.
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
Dice*
MAX4524CUB
MAX4524C/D
MAX4524EUB
MAX4525CUB
MAX4525C/D
MAX4525EUB
________________________Ap p lic a t io n s
Battery-Operated Equipment
10 µMAX
10 µMAX
Dice*
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Communications Circuits
10 µMAX
*Contact factory for availability.
______________________P in Co n fig u ra t io n s /Fu n c t io n a l Dia g ra m s /Tru t h Ta b le s
TOP VIEW
MAX4524
MAX4525
NO2
NO3
NO1
INH
1
2
3
4
5
10 V+
NOA
COMA
NCA
1
2
3
4
5
10 V+
9
8
7
6
COM
9
8
7
6
COMB
NO0
NOB
NCB
ADD
ADDA
ADDB
INH
LOGIC
GND
GND
LOGIC
µMAX
µMAX
INH
1
ADDB ADDA ON SWITCH
INH
ADD
ON SWITCH
X
0
0
1
1
X
0
1
0
1
NONE
1
X
NONE
0
COM-NO0
COM-NO1
COM-NO2
COM-NO3
COMA-NCA,
COMB-NCB
0
0
0
1
0
COMA-NOA,
COMB-NOB
0
0
X = DON’T CARE
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND)
Continuous Power Dissipation (T = +70°C)
A
V+ ..............................................................................-0.3V, +13V
Voltage into any terminal (Note 1)................-0.3V to (V+ + 0.3V)
Continuous Current into any Terminal ..............................±20mA
Peak Current, NO, NC or COM_
(pulsed at 1ms,10% duty cycle)....................................±40mA
ESD per Method 3015.7 ..................................................>2000V
µMAX (derate 4.1mW/°C above +70°C) .......................330mW
Operating Temperature Ranges
MAX452_C_ _ ......................................................0°C to +70°C
MAX452_E_ _....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1: Voltages exceeding V+ or GND on any signal terminal 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 CHARACTERISTICS—Single +5V Supply
(V+ = +4.5V to +5.5V, GND = 0V, V
= 2.4V, V = 0.8V, T = T
to T
, unless otherwise noted. Typical values are at
AH
AL
A
MIN
MAX
T
A
= +25°C.)
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
TEMP.
UNITS
/MAX425
ANALOG SWITCH
V
V
,
COM
Analog Signal Range
C, E
V-
V+
V
NO
+25°C
C, E
90
2
150
200
COM-NO/NC On-Resistance
R
V+ = 4.5V, I
= 1mA, V
COM
= 3.5V
= 3.5V
Ω
ON
COM
COM-NO/NC On-Resistance
Match Between Channels
(Note 3)
+25°C
C, E
10
15
∆R
V+ = 4.5V, I
V+ = 5.5V; I
= 1mA, V
COM
Ω
ON
COM
COM-NO/NC On-Resistance
Flatness (Note 4)
= 1mA;
COM
R
+25°C
5
12
Ω
FLAT
V
COM
= 1.5V, 2.5V, 3.5V
+25°C
C, E
-1
-10
-2
1
10
2
NO/NC Off-Leakage
(Note 5)
I
NO(OFF),
V+ = 5.5V; V = 1V, 4.5V; V
= 4.5V, 1V
nA
NO
COM
I
NC(OFF),
+25°C
C, E
MAX4524
MAX4525
MAX4524
MAX4525
-50
-1
50
1
COM Off-Leakage
(Note 5)
V+ = 5.5V; V = 1V, 4.5V;
NO
I
nA
nA
COM(OFF)
V
COM
= 4.5V, 1V
+25°C
C, E
-25
-2
25
2
+25°C
C, E
-50
-1
50
1
COM On-Leakage
(Note 5)
I
V+ = 5.5V; V
= 4.5V, 1V
COM(ON)
COM
+25°C
C, E
-25
25
DIGITAL I/O
Logic Input Logic
Threshold High
V
C, E
C, E
1.5
1.5
2.4
V
V
IH
Logic Input Logic
Threshold Low
V
IL
0.8
Input Current High
Input Current Low
I
V
= V
INH
= 2.4V
= 0.8V
C, E
C, E
-1
-1
1
1
µA
µA
IH
A
I
IH
V = V
A INH
2
_______________________________________________________________________________________
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
/MAX425
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = +4.5V to +5.5V, GND = 0V, V
= 2.4V, V = 0.8V, T = T
to T , unless otherwise noted. Typical values are at
MAX
AH
AL
A
MIN
T
A
= +25°C.)
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
TEMP.
UNITS
SWITCH DYNAMIC CHARACTERISTICS
+25°C
C, E
90
40
90
150
200
120
180
150
200
V
= 3V, R = 300Ω, C = 35pF,
L L
NO_
Inhibit Turn-On Time
Inhibit Turn-Off Time
Address Transition Time
t
ns
ns
ns
(ON)
Figure 2
+25°C
C, E
V
= 3V, R = 300Ω, C = 35pF,
NO_
L
L
t
(OFF)
Figure 2
+25°C
C, E
V
= 3V/0V, R = 300Ω, C = 35pF,
NO_
L
L
t
TRANS
Figure 1
Break-Before-Make Time
Charge Injection (Note 6)
NO/NC Off-Capacitance
t
V
= 3V, R = 300Ω, C = 35pF, Figure 3
+25°C
5
20
0.8
4
ns
pC
pF
BBM
Q
NO_
L
L
C = 1nF, R = 0Ω, V = 2.5V, Figure 4
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
5
S
S
C
V
= 0V, f = 1MHz, Figure 6
= 0V, f = 1MHz, Figure 6
NO_
NO(OFF)
NO_
MAX4524
MAX4525
MAX4524
MAX4525
14
6
COM Off-Capacitance
C
V
pF
COM(OFF)
COM(ON)
20
12
-75
COM On-Capacitance
Off-Isolation
C
V
NO_
= 0V, f = 1MHz, Figure 6
pF
dB
dB
%
V
R = 50Ω, f = 1MHz, Figure 5
L
ISO
Channel-to-Channel
Crosstalk (MAX4525)
V
R = 50Ω, f = 1MHz, Figure 5
L
+25°C
+25°C
-74
0.2
CT
Total Harmonic Distortion
POWER SUPPLY
THD
R = 600Ω, V
L
= 2.5Vp-p, 20Hz to 20kHz
COM
Power-Supply Range
V+
I+
C, E
+25°C
C, E
2
12
1
V
-1
Power-Supply Current
V+ = 5.5V, V
= V
= V+ or 0V
µA
ADD
INH
-10
10
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +2.7V to +3.6V, GND = 0V, V
= 2.0V, V = 0.5V, T = T
to T
, unless otherwise noted. Typical values are at
AH
AL
A
MIN
MAX
T
A
= +25°C.)
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
TEMP.
UNITS
ANALOG SWITCH
V
V
,
COM
Analog Signal Range
C, E
V-
V+
V
Ω
NO
+25°C
C, E
190
400
500
1
COM-NO/NC On-Resistance
R
V+ = 2.7V, I
= 0.1mA, V
= 1.5V
ON
COM
COM
+25°C
C, E
-1
-10
-2
NO/NC Off-Leakage
(Note 6)
I
I
NO(OFF),
V+ = 3.6V; V = 1V, 3V; V
= 3V, 1V
MAX4524
MAX4525
nA
NO
COM
NC(OFF)
10
2
+25°C
C, E
-50
-1
50
1
COM Off-Leakage
(Note 6)
V+ = 3.6V; V = 1V, 3V;
NO
I
nA
COM(OFF)
V
COM
= 3V, 1V
+25°C
C, E
-25
25
________________________________________________________________________________________
3
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
(V+ = +2.7V to +3.6V, GND = 0V, V
= 2.0V, V = 0.5V, T = T
to T , unless otherwise noted. Typical values are at
MAX
AH
AL
A
MIN
T
A
= +25°C.)
MIN
TYP
(Note 2)
MAX
PARAMETER
SYMBOL
CONDITIONS
TEMP.
UNITS
+25°C
C, E
-2
-50
-1
2
50
1
MAX4524
MAX4525
COM On-Leakage
(Note 6)
I
V+ = 3.6V; V
= 3V, 1V
nA
COM(ON)
COM
+25°C
C, E
-25
25
DIGITAL I/O
Logic Input Logic
Threshold High
V
C, E
C, E
1.0
1.0
2.0
V
V
IH
Logic Input Logic
Threshold Low
V
IL
0.5
Input Current High
Input Current Low
I
V
= V
INH
= 2.0V
= 0.5V
C, E
C, E
-1
-1
1
1
µA
µA
IH
A
I
IH
V = V
A INH
/MAX425
SWITCH DYNAMIC CHARACTERISTICS (Note 6)
+25°C
C, E
170
50
300
400
200
300
300
400
V
= 1.5V, R = 300Ω, C = 35pF,
L L
NO_
Inhibit Turn-On Time
Inhibit Turn-Off Time
Address Transition Time
t
ns
ns
(ON)
Figure 2
+25°C
C, E
V
= 1.5V, R = 300Ω, C = 35pF,
NO_
L
L
t
(OFF)
Figure 2
+25°C
C, E
130
40
V
= 1.5V/0V, R = 300Ω, C = 35pF,
NO_
L
L
t
ns
ns
TRANS
Figure 1
Break-Before-Make Time
t
Figure 3, V
= 1.5V, R = 300Ω, C = 35pF +25°C
5
BBM
I+
NO_
L
L
POWER SUPPLY
+25°C
C, E
-1
1
Power-Supply Current
V+ = 3.6V, V
= V
= V+ or 0V
µA
ADD
INH
-10
10
Note 2: The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3: ∆R = R - R
ON
ON(MAX)
ON(MIN)
Note 4: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges; i.e., V = 3V to 0V and 0V to 3V.
NO
Note 5: Leakage parameters are 100% tested at maximum-rated hot operating temperature, and guaranteed by correlation at
T
A
= +25°C.
Note 6: Guaranteed by design, not production tested.
4
_______________________________________________________________________________________
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
/MAX425
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(V+ = +5V, GND = 0V, T = +25°C, unless otherwise noted.)
A
OFF-LEAKAGE vs.
TEMPERATURE
ON-RESISTANCE vs. V
COM
ON-RESISTANCE vs. V
AND TEMPERATURE
COM
10,000
100
10
130
110
90
V+ = 5.5V
T = +70°C
T = +85°C
A
A
V+ = 1.2V
1000
100
V+ = 2V
V+ = 2.7V
70
1
0.1
V+ = 3.3V
COM OFF
T = +25°C
A
V+ = 5V
T = 0°C
A
V+ = 7.5V
50
30
T = -40°C
A
NO OFF
V+ = 10V
10
0.01
10
0
1
2
3
4
5
6
7
8
9 10
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5..0
(V)
-50 -25
0
25
50
75 100 125
V
(V)
TEMPERATURE (°C)
V
COM
COM
ON-LEAKAGE vs.
TEMPERATURE
SUPPLY CURRENT vs.
TEMPERATURE
CHARGE INJECTION vs. V
COM
1.5
1.0
100,000
10,000
1000
100
10
1
V+ = 5.5V
V+ = 5V
V+ = +5V
V- = 0V
V
= V = 0V, 5V
A
INH
I+
0.5
0
-0.5
100
10
-1.0
-1.5
-2.0
-2.5
1
0
1
2
3
4
5
-50 -25
0
25
50
75 100 125
-50 -25
0
25
50
75 100 125
TEMPERATURE (°C)
V
COM
(V)
TEMPERATURE (°C)
TOTAL HARMONIC DISTORTION
vs. FREQUENCY
FREQUENCY RESPONSE
MAX4524/25-08
120
100
80
0
100
10
600Ω IN AND OUT
-10
-20
-30
-40
-50
-60
-70
-80
ON LOSS
60
OFF LOSS
40
20
ON PHASE
0
1
-20
-40
-60
-80
-90
0.1
-100
-100
-120
50Ω IN AND OUT
-110
-120
0.01
0.1
1
10
FREQUENCY (MHz)
100 300
10
100
1k
10k
100k
FREQUENCY (Hz)
_______________________________________________________________________________________
5
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s (c o n t in u e d )
(V+ = +5V, GND = 0V, T = +25°C, unless otherwise noted.)
A
LOGIC-LEVEL THRESHOLD vs. V+
V+ CURRENT vs. LOGIC LEVEL
3.0
1
-1
10
2.5
2.0
-2
10
V+ = +12V
-3
10
-4
10
-5
10
1.5
1.0
-6
10
V+ = +5V
-7
10
-8
10
-9
10
0.5
0
-10
10
-11
10
0
1
2
3
4
5
6
7 8 9 10 11 12
11
12
0
1
2
3
4
5
6
7
8
9
10
V+ (V)
V
, V (V)
/MAX425
ADD_ INH
______________________________________________________________ P in De s c rip t io n
MAX4524
MAX4525
NAME
NO2
FUNCTION
1
—
2
—
1
Analog Switch Normally Open Input 2
NOA
NO3
Analog Switch “A” Normally Open Input
Analog Switch Normally Open Input 3
Analog Switch “A” Common
—
2
—
3
COMA
NO1
—
3
Analog Switch Normally Open Input 1
Analog Switch “A” Normally Closed Input
—
NCA
Inhibit. Connect to GND for normal operation. Connect to logic-level high to turn all
switches off.
4
5
4
5
INH
Ground. Connect to digital ground (analog signals have no ground reference, but
are limited to V+ and GND).
GND
6
—
7
—
6
ADDB
ADD
ADDA
NCB
NO0
Logic-Level Address Input (see Truth Tables)
Logic-Level Address Input (see Truth Tables)
Logic-Level Address Input (see Truth Tables)
Analog Switch “B” Normally Closed Input
Analog Switch Normally Open Input 0
Analog Switch “B” Normally Open Input
Analog Switch Common
—
7
—
8
—
8
—
9
NOB
COM
COMB
V+
—
9
—
10
Analog Switch “A” Common
10
Positive Analog and Digital Supply-Voltage Input
Note: NO_, NC_, and COM_ analog signal pins are identical and interchangeable. Any may be considered an input or output;
signals pass equally well in both directions.
6
_______________________________________________________________________________________
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
/MAX425
Virtually all the analog leakage current comes from the
__________Ap p lic a t io n s In fo rm a t io n
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
that leakage will vary as the signal varies. The differ-
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. This is why both sides of a given switch can
show leakage currents of either the same or opposite
polarity.
P o w e r-S u p p ly Co n s id e ra t io n s
The MAX4524/MAX4525’s construction is typical of
most CMOS analog switches. They have two supply
pins: V+ and GND. V+ and GND are used to drive the
internal CMOS switches and set the limits of the analog
voltage on any switch. Reverse ESD-protection diodes
are internally connected between each analog signal
p in a nd b oth V+ a nd GND. If a ny a na log s ig na l
exceeds V+ or GND, one of these diodes will conduct.
During normal operation, these (and other) reverse-
biased ESD diodes leak, forming the only current drawn
from V+ or GND.
______________________________________________Te s t Circ u it s /Tim in g Dia g ra m s
V+
V+
V+
0V
50%
V
ADD
V
ADD
NO0
ADDA
ADDB
V+
NO1–NO2
50Ω
V
NO0
90%
90%
MAX4524
GND
NO3
INH
COM
V
OUT
V
OUT
35pF
0V
300Ω
t
TRANS
t
TRANS
V+
V+
V+
0V
V
50%
ADD
V
ADD
NO
ADD
INH
50Ω
V
NC
90%
MAX4525
GND
90%
NC
V+
COM
V
OUT
V
OUT
35pF
300Ω
0V
t
t
TRANS
TRANS
REPEAT TEST FOR EACH SECTION.
Figure 1. Address Transition Time
_______________________________________________________________________________________
7
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
The re is no c onne c tion b e twe e n the a na log s ig na l
Hig h -Fre q u e n c y P e rfo rm a n c e
In 50Ω systems, signal response is reasonably flat up
to 50MHz (s e e Typ ic a l Op e ra ting Cha ra c te ris tic s ).
Ab ove 20MHz, the on-re s p ons e ha s s e ve ra l minor
peaks, which 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
frequencies with less attenuation. At 10MHz, off-isola-
tion is about -50dB in 50Ω systems, becoming worse
(a p p roxima te ly 20d B p e r d e c a d e ) a s fre q ue nc y
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.
paths and GND. V+ and GND power the internal logic
and logic-level translators, and set both the input and
output logic limits. The logic-level translators convert
the logic levels into switched V+ and GND signals to
drive the gates of the analog signals. This drive signal
is the only connection between the logic supplies (and
signals) and the analog supplies. V+ has an ESD-pro-
tection diode to GND.
Lo w -Vo lt a g e Op e ra t io n
These devices operate from a single supply between
+2V a nd +12V. At room te mpe ra ture , the y a c tua lly
“work” with a single supply at near or below +1.7V,
although as supply voltage decreases, switch on-resis-
tance and switching times become very high.
_________________________________Te s t Circ u it s /Tim in g Dia g ra m s (c o n t in u e d )
/MAX425
V+
V+
V+
0V
50%
V
INH
NO0
ADDA
ADDB
V+
NO1–NO3
V
NO0
90%
MAX4524
GND
V
INH
INH
COM
V
OUT
V
OUT
90%
50Ω
35pF
0V
300Ω
t
t
ON
OFF
V+
V+
V+
0V
V
50%
INH
NO_
NC_
ADD
INH
V+
V
NO_
90%
MAX4525
GND
V
INH
COM_
V
OUT
V
OUT
90%
35pF
50Ω
300Ω
0V
t
t
ON
OFF
REPEAT TEST FOR EACH SECTION.
Figure 2. Inhibit Switching Times
8
_______________________________________________________________________________________
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
/MAX425
_________________________________Te s t Circ u it s /Tim in g Dia g ra m s (c o n t in u e d )
V+
V+
V
ADD
NO0–N03
ADDA
ADDB
V+
50Ω
MAX4524
GND
t < 20ns
R
t < 20ns
F
V+
0V
V
OUT
INH
COM
V
ADD
50%
35pF
300Ω
V
COM
80%
V+
V+
V
OUT
V
ADD
NO_, NC_
ADD
INH
V+
0V
t
50Ω
BBM
MAX4525
V
OUT
COM_
GND
35pF
300Ω
REPEAT TEST FOR EACH SECTION.
Figure 3. Break-Before-Make Interval
V+
V+
V+
0V
V
INH
V
NO
= 0V
NO_
CHANNEL
ADDB
SELECT
MAX4524
ADDA
MAX4525
∆ V
OUT
V
OUT
V
INH
V
OUT
INH
COM_
C
GND
L
50Ω
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 4. Charge Injection
_______________________________________________________________________________________
9
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
_________________________________Te s t Circ u it s /Tim in g Dia g ra m s (c o n t in u e d )
10nF
V+
V+
NETWORK
ANALYZER
V
IN
V
OUT
50Ω
50Ω
OFF ISOLATION = 20log
V
NO_
ADDA
ADDB
IN
CHANNEL
SELECT
MAX4524
MAX4525
V
OUT
ON LOSS = 20log
V
IN
V
OUT
MEAS.
REF.
INH
COM_
V
OUT
CROSSTALK = 20log
GND
V
IN
50Ω
50Ω
/MAX425
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 (MAX4524) IS MEASURED FROM ONE CHANNEL (A, B) TO OTHER CHANNEL.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 5. Off-Isolation, On-Loss, and Crosstalk
V+
V+
NO_
NO_
ADDA
ADDB
CHANNEL
SELECT
MAX4524
MAX4525
1MHz
INH
COM_
CAPACITANCE
ANALYZER
GND
Figure 6. NO/COM Capacitance
10 ______________________________________________________________________________________
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
/MAX425
__________________________________________________________Ch ip To p o g ra p h ie s
MAX4524
MAX4525
NO2
N.C.
N.C.
V+
N.C.
N.C.
V+
N.C.
N.C.
N.C.
N.C.
NO3
NOA
COM
N.C.
COMB
COMA
NOB
0.069"
(1.75mm)
NO0
0.069"
(1.75mm)
NCB
NO1
NCA
ADDA
N.C.
INH
INH
GND
0.053"
(1.35mm)
GND
0.053"
(1.35mm)
N.C.
N.C.
N.C.
N.C.
ADDB
ADD
N.C. = No Connection
TRANSISTOR COUNT: 219
SUBSTRATE CONNECTED TO V+
______________________________________________________________________________________ 11
Lo w -Vo lt a g e , S in g le -S u p p ly
Mu lt ip le x e r a n d S w it c h
________________________________________________________P a c k a g e In fo rm a t io n
/MAX425
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.
12 ____________________Ma x im In t e g ra t e d P ro d u c t s , 1 2 0 S a n Ga b rie l Drive , S u n n yva le , CA 9 4 0 8 6 4 0 8 -7 3 7 -7 6 0 0
© 1998 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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