19-1262; Rev 1; 5/01
Low-Voltage, Bidirectional
RF/Video Switch
General Description
The MAX4529 is a low-voltage T-switch designed for
switching RF and video signals from DC to 300MHz in
50Ω and 75Ω systems. This switch is constructed in a
“T” configuration, ensuring excellent high-frequency off
isolation of -80dB at 10MHz.
The MAX4529 can handle Rail-to-Rail
®
analog signals
in either direction. On-resistance (70Ω max) is flat (0.5Ω
max) over the specified signal range, using ±5V sup-
plies. The off leakage current is less than 1nA at +25°C
and 20nA at +85°C.
This CMOS switch can operate with dual power sup-
plies ranging from ±2.7V to ±6V or a single supply
between +2.7V and +12V. All digital inputs have
0.8V/2.4V logic thresholds, ensuring both TTL- and
CMOS-logic compatibility when using ±5V or a single
+5V supply.
____________________________Features
o
High 50Ω Off Isolation: -80dB at 10MHz
o
DC to 300MHz -3dB Signal Bandwidth
o
70Ω Signal Paths with ±5V Supplies
o
10Ω Signal-Path Flatness with ±5V Supplies
o
±2.7V to ±6V Dual Supplies
+2.7V to +12V Single Supply
o
Low Power Consumption: <1µW
o
Rail-to-Rail Bidirectional Signal Handling
o
>2kV ESD Protection per Method 3015.7
o
TTL/CMOS-Compatible Inputs with
Single +5V or ±5V
MAX4529
Ordering Information
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-
PACKAGE
8 Plastic DIP
8 Narrow SO
8 µMAX
6 SOT23-6
Dice*
8 Plastic DIP
8 Narrow SO
8 µMAX
6 SOT23-6
SOT
TOP MARK
—
—
—
AAAQ
—
—
—
—
AAAQ
________________________Applications
RF Switching
Video Signal Routing
High-Speed Data Acquisition
Test Equipment
ATE Equipment
Networking
MAX4529CPA
MAX4529CSA
MAX4529CUA
MAX4529CUT-T
MAX4529C/D
MAX4529EPA
MAX4529ESA
MAX4529EUA
MAX4529EUT-T
*Contact
factory for dice specifications.
_______________________Pin Configurations/Functional Diagrams/Truth Table
MAX4529
N.C. 1
NC 2
GND 3
IN 4
8 V+
7 COM
6 N.C.
5 V-
NC 1
V+ 2
V- 3
MAX4529
6 COM
5 GND
4 IN
LOGIC
0
1
SWITCH
ON
OFF
SOT23-6
DIP/SO/µMAX
N.C. = NOT INTERNALLY CONNECTED
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
________________________________________________________________
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, Bidirectional
RF/Video Switch
MAX4529
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND)
V+ ...........................................................................-0.3V, +13.0V
V- ............................................................................-13.0V, +0.3V
V+ to V-...................................................................-0.3V, +13.0V
All Other Pins (Note 1) ..........................(V- - 0.3V) to (V+ + 0.3V)
Continuous Current into Any Terminal..............................±10mA
Peak Current into Any Terminal
(pulsed at 1ms, 10% duty cycle)..................................±50mA
ESD per Method 3015.7 ..................................................>2000V
Continuous Power Dissipation (T
A
= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW
8-Pin SO (derate 5.88mW/°C above +70°C)............... 471mW
8-Pin µMAX (derate 4.1mW/°C above +70°C) ............. 330mW
6-Pin SOT23-6 (derate 7.1mW/°C above +70°C) ........571mW
Operating Temperature Ranges
MAX4529C_ E .....................................................0°C to +70°C
MAX4529E_ E ..................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Note 1:
Voltages on all other pins exceeding V+ or V- 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 CHARACTERISTICS—Dual Supplies
(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, V
INL
= 0.8V, V
INH
= 2.4V, V
GND
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical
values are at T
A
= +25°C.)
PARAMETER
ANALOG SWITCH
Analog Signal Range
Signal-Path On-Resistance
Signal-Path On-Resistance
Flatness (Note 4)
NC Off Leakage Current
(Notes 5, 6)
COM Off Leakage Current
(Notes 5, 6)
COM On Leakage Current
(Notes 5, 6)
LOGIC INPUT
IN Input Logic Threshold High
IN Input Logic Threshold Low
IN Input Current Logic High or
Low
V
INH
V
INL
I
INH
, I
INL
V
IN
= 0.8V or 2.4V
C, E
C, E
C, E
0.8
-1
1.5
1.5
0.03
1
2.4
V
V
µA
V
COM
, V
NC
R
ON
R
FLAT(ON)
I
NC(OFF)
I
COM(OFF)
I
COM(ON)
(Note 3)
V+ = 5V, V- = -5V,
V
COM
= ±3V, I
COM
= 1mA
V+ = 5V; V- = -5V; V
COM
= 3V,
0V, -3V; I
COM
= 1mA
V+ = 5.5V, V- = -5.5V,
V
COM
= ±4.5V, V
NC
= 4.5V
V+ = 5.5V, V- = -5.5V,
V
COM
= ±4.5V, V
NC
= 4.5V
V+ = 5.5V, V- = -5.5V,
V
COM
= ±4.5V
±
±
C, E
+25°C
C, E
+25°C
+25°C
C, E
+25°C
C, E
+25°C
C, E
-1
-20
-1
-20
-2
-40
0.02
0.02
5
0.02
V-
45
V+
70
100
10
1
20
1
20
2
40
V
Ω
Ω
nA
nA
nA
SYMBOL
CONDITIONS
T
A
MIN
TYP
(Note 2)
MAX
UNITS
2
_______________________________________________________________________________________
Low-Voltage, Bidirectional
RF/Video Switch
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, V
INL
= 0.8V, V
INH
= 2.4V, V
GND
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical
values are at T
A
= +25°C.)
PARAMETER
SYMBOL
CONDITIONS
T
A
MIN
TYP
(Note 2)
45
37
MAX
UNITS
MAX4529
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Charge Injection (Note 3)
NC Off Capacitance
COM_ Off Capacitance
COM_ On Capacitance
Off Isolation (Note 7)
-3dB Bandwidth
Distortion
POWER SUPPLY
Power-Supply Range
V+ Supply Current
V - Supply Current
V+, V-
I+
I-
V+ = 5.5V, V
IN
= 0V or V+,
V- = -5.5V
V+ = 5.5V, V
IN
= 0V or V+,
V- = -5.5V
C, E
+25°C
C, E
+25°C
C, E
±2.7
-1
-10
-1
-10
0.05
0.05
±6
1
10
1
10
V
µA
µA
t
ON
t
OFF
Q
C
NC(OFF)
C
COM(OFF)
C
COM(ON)
V
ISO
BW
THD+N
V
COM
= ±3V, V+ = 5V, V- = -5V,
Figure 2
V
COM
= ±3V, V+ = 5V, V- = -5V,
Figure 2
C
L
= 1.0nF, V
NC
= 0V, R
S
= 0Ω,
Figure 3
V
NC
= GND, f = 1MHz, Figure 5
V
COM
= 0V, f = 1MHz, Figure 5
V
COM
= V
NC
= 0V, f = 1MHz,
Figure 5
R
L
= 50Ω, V
COM
= 1V
RMS
,
f = 10MHz, Figure 4
R
L
= 50Ω, Figure 4
V
IN
= 5Vp-p, f < 20kHz,
600Ω in and out
+25°C
C, E
+25°C
C, E
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
5
6
6
11.5
-80
300
0.004
75
100
75
100
10
ns
ns
pC
pF
pF
pF
dB
MHz
%
_______________________________________________________________________________________
3
Low-Voltage, Bidirectional
RF/Video Switch
MAX4529
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = +4.5V to +5.5V, V- = 0V, V
INL
= 0.8V, V
INH
= 2.4V, V
GND
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
at T
A
= +25°C.)
PARAMETER
ANALOG SWITCH
Analog Signal Range
Signal-Path On-Resistance
NC Off Leakage Current
(Notes 5, 6, 8)
COM Off Leakage Current
(Notes 5, 6, 8)
COM On Leakage Current
(Notes 5, 6, 8)
LOGIC INPUT
IN Input Logic Threshold High
IN Input Logic Threshold Low
IN Input Current Logic High or
Low
V
INH
V
INL
I
INH
, I
INL
V
IN
= 0.8V or 2.4V
C, E
C, E
C, E
0.8
-1
1.5
1.5
0.03
1
2.4
V
V
µA
V
COM
, V
NC
R
ON
I
NC(OFF)
I
COM(OFF)
I
COM(ON)
(Note 3)
V+ = 5V, V
COM
= 3V,
I
COM
= 1mA
V+ = 5.5V, V
COM
= 1V,
V
NC
= 4.5V
V+ = 5.5V, V
COM
= 1V,
V
NC
= 4.5V
V+ = 5.5V; V
COM
= 1V, 4.5V
+25°C
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
-1
-20
-1
-20
-2
-40
0.02
0.02
0.02
0
70
V+
120
150
1
20
1
20
2
40
V
Ω
nA
nA
nA
SYMBOL
CONDITIONS
T
A
MIN
TYP
(Note 2)
MAX
UNITS
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time (Note 3)
Turn-Off Time (Note 3)
Charge Injection (Note 3)
Off-Isolation (Note 7)
POWER SUPPLY
Power-Supply Range
V+ Supply Current
V+
I+
V- = 0V
V+ = 5.5V, V
IN
= 0V or V+
C, E
+25°C
C, E
2.7
-1
-10
0.05
12.0
1
10
V
µA
t
ON
t
OFF
Q
V
ISO
V
COM
= 3V, V+ = 5V,
Figure 2
V
COM
= 3V, V+ = 5V,
Figure 2
C
L
= 1.0nF, V
NC
= 2.5V,
R
S
= 0Ω, Figure 3
R
L
= 50Ω, V
COM
= 1V
RMS
,
f = 10MHz, Figure 4
+25°C
C, E
+25°C
C, E
+25°C
+25°C
1.5
-75
43
65
100
120
90
110
10
ns
ns
pC
dB
4
_______________________________________________________________________________________
Low-Voltage, Bidirectional
RF/Video Switch
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +2.7V to +3.6V, V- = 0V, V
INL
= 0.4V, V
INH
= 2.4V, V
GND
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are
at T
A
= +25°C.)
PARAMETER
ANALOG SWITCH
Analog Signal Range
Signal-Path On-Resistance
LOGIC INPUT
IN Input Logic Threshold High
IN Input Logic Threshold Low
IN Input Current Logic High or Low
V
INH
V
INL
I
INH
, I
INL
(Note 3)
(Note 3)
V
IN
= 0.4V or 2.4V (Note 3)
V
COM
= 1.5V, V+ = 2.7V,
Figure 2 (Note 3)
V
COM
= 1.5V, V+ = 2.7V,
Figure 2 (Note 3)
C, E
C, E
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
-1
-10
0.05
70
0.4
-1
150
1.0
1.0
1
300
400
150
200
1
10
2.4
V
V
µA
V
COM
, V
NC
R
ON
(Note 3)
V+ = 2.7V, V
COM
= 1.5V,
I
COM
= 0.1mA
+25°C
+25°C
C, E
0
175
V+
400
500
V
Ω
SYMBOL
CONDITIONS
T
A
MIN
TYP
(Note 2)
MAX
UNITS
MAX4529
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
POWER SUPPLY
V+ Supply Current
I+
V+ = 3.6V, V
IN
= 0V or V+
µA
t
ON
t
OFF
ns
ns
Note 2:
The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3:
Guaranteed by design.
Note 4:
Resistance flatness is defined as the difference between the maximum and the minimum value of on-resistance as
measured over the specified analog signal range.
Note 5:
Leakage parameters are 100% tested at the maximum rated hot temperature and guaranteed by correlation at +25°C.
Note 6:
Guaranteed by design, not subject to production testing in SOT package.
Note 7:
Off isolation = 20log
10
(V
COM
/ V
NC
), V
COM
= output, V
NC
= input to off switch.
Note 8:
Leakage testing for single-supply operation is guaranteed by testing with dual supplies.
__________________________________________Typical Operating Characteristics
(V+ = +5V, V- = -5V, GND = 0V, T
A
= +25°C, packages are surface mount, unless otherwise noted.)
ON-RESISTANCE vs. V
COM
(DUAL SUPPLIES)
MAX4529-01
ON-RESISTANCE vs. V
COM
(SINGLE SUPPLY)
MAX4529-02
ON-RESISTANCE vs. V
COM
AND
TEMPERATURE (DUAL SUPPLIES)
+125°C
+85°C
+70°C
40
0°C
30
20
10
0
V+ = 5V
V- = -5V
-5
-4
-3
-2
-1
0
1
2
3
4
5
V
COM
(V)
-40°C
-55°C
+25°C
MAX4529-03
1000
V+ = 1.2V
V- = -1.2V
ON-RESISTANCE (Ω)
V+ = 2.0V
V- = -2.0V
100
V+ = 2.7V
V- = -2.7V
1000
V+ = 1.2V
V+ = 2.0V
ON-RESISTANCE (Ω)
V+ = 2.7V
V+ = 3.3V
100
V+ = 5.0V
V- = 0V
70
60
ON-RESISTANCE (Ω)
50
V+ = 5.0V
V- = -5.0V
10
-5
-4
-3
-2 -1
0
1
V+ = 3.3V
V- = -3.3V
10
2
3
4
5
0
1
2
3
4
V+ = 7.5V
V+ = 10.0V
5
6
7
8
9
10
V
COM
(V)
V
COM
(V)
_______________________________________________________________________________________
5
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