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19-1425; Rev 0; 1/99
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
General Description
The MAX4588 low-voltage, dual 4-channel multiplexer
is designed for RF and video signal processing at fre-
quencies up to 180MHz in 50Ω and 75Ω systems. A
flexible digital interface allows control of on-chip func-
tions through either a parallel interface or an SPI™/
MICROWIRE™ serial port.
Each channel of the MAX4588 is designed using a “T”
switch configuration, ensuring excellent high-frequency
off-isolation. The MAX4588 has low on-resistance of
60Ω max, with an on-resistance match across all chan-
nels of 4Ω max. Additionally, on-resistance is flat
across the specified signal range (2Ω max). The off-
leakage current is under 1nA at T
A
= +25°C, and less
than 10nA at T
A
= +85°C.
The MAX4588 operates from single +2.7V to +12V or
dual ±2.7V to ±6V supplies. When operating with a +5V
supply, the inputs maintain TTL- and CMOS-level com-
patibility. The MAX4588 is available in 28-pin narrow
DIP, wide SO, and space-saving SSOP packages.
o
High Off-Isolation: -74dB at 10MHz
o
Low Crosstalk: -70dB up to 10MHz
o
16MHz -0.1dB Signal Bandwidth
o
180MHz -3dB Signal Bandwidth
o
60Ω (max) On-Resistance with ±5V Supplies
o
4Ω (max) On-Resistance Matching with ±5V
Supplies
o
2Ω (max) On-Resistance Flatness with ±5V
Supplies
o
+2.7V to +12V Single Supply
±2.7V to ±6V Dual Supplies
o
Low Power Consumption: <20µW
o
Rail-to-Rail
®
, Bidirectional Signal Handling
o
Parallel or SPI/MICROWIRE-Compatible Serial
Interface
o
>±2kV ESD Protection per Method 3015.7
o
TTL/CMOS-Compatible Inputs with V
L
= +5V
Features
o
Low Insertion Loss: -2.5dB up to 100MHz
MAX4588
Applications
RF Switching
Video Signal Routing
High-Speed Data Acquisition
Automatic Test Equipment
Networking
Pin Configuration
TOP VIEW
GND 1
COM1 2
V+ 3
NO1 4
GND 5
NO2 6
GND 7
NO3 8
GND 9
NO4 10
4/8 11
RS 12
LE/CS 13
A2/SCLK 14
CONTROL
LOGIC
Ordering Information
PART
TEMP. RANGE
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
PIN-PACKAGE
28 SSOP
28 Wide SO
28 Narrow Plastic DIP
28 SSOP
28 Wide SO
28 Narrow Plastic DIP
MAX4588CAI
MAX4588CWI
MAX4588CPI
MAX4588EAI
MAX4588EWI
MAX4588EPI
MAX4588
28 COM2
27 V-
26 NO5
25 GND
24 NO6
23 GND
22 NO7
21 GND
20 NO8
19 V
L
18 SER/PAR
17 EN
16 A0/DOUT
15 A1/DIN
SSOP/SO/DIP
SPI is a trademark of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
1
________________________________________________________________
Maxim Integrated Products
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
MAX4588
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND)
V+ ........................................................................-0.3V to +13.0V
V
L
.......................-0.3V to (V+ + 0.3V) or 7V (whichever is lower)
V- ........................................................................-13.0V to +0.3V
V+ to V-................................................................-0.3V to +13.0V
V
NO_
, V
COM_
(Note 1) ..........................(V- - 0.3V) to (V+ + 0.3V)
4/8,
RS, LE/CS,
A2/SCLK, A1/DIN,
A0/DOUT, EN, SER/PAR to GND ...............-0.3V to (V+ + 0.3V)
Continuous Current into Any Terminal..............................±20mA
Peak Current into Any Terminal
(pulsed at 1ms, 10% duty cycle)..................................±40mA
ESD per Method 3015.7.......................................................±2kV
Continuous Power Dissipation (T
A
= +70°C)
SSOP (derate 9.52mW/°C above +70°C) ....................762mW
Wide SO (derate 12.50mW/°C above +70°C)................1.00W
Plastic DIP (derate 14.29mW/°C above +70°C) ............1.14W
Operating Temperature Ranges
MAX4588C_ I ......................................................0°C to +70°C
MAX4588E_ I ...................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1:
Voltages on these 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+ = V
L
= +4.5V to +5.5V, V- = -4.5V to -5.5V, V
INH
= +2.4V, V
INL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical val-
ues are at T
A
= +25°C, V+ = V
L
= +5V, V- = -5V.) (Note 2)
PARAMETER
ANALOG SWITCH
ANALOG
Analog Signal Range
(Note 3)
On-Resistance
On-Resistance Match Between
Channels (Note 4)
On-Resistance Flatness
(Note 5)
NO_ Off-Leakage Current
(Note 6)
COM_ Off-Leakage Current
(Note 6)
COM_ On-Leakage Current
(Note 6)
Input Logic Threshold High
Input Logic Threshold Low
Input Threshold Hysteresis
Input Current
DOUT Logic Low Output
DOUT Logic High Output
I
IN
V
OL
V
OH
V
IN_
= 0 or V
L
I
SINK
= 3.2mA
I
SOURCE
= -1mA
C, E
C, E
C, E
V
L
- 1
-1
OUTPUT (SERIAL
LOGIC OUTPUT (SERIAL
INTERFACE)
0.4
V
V
V
COM_
,
V
NO
R
ON
∆R
ON
R
FLAT(ON)
I
NO_(OFF)
I
COM_(OFF)
I
COM_(ON)
V+ = 5V, V- = -5V, V
NO_
= ±2V,
I
COM_
= 4mA
V+ = 5V, V- = 5V, V
NO_
= ±2V,
I
COM_
= 4mA
V+ = 5V; V- = -5V; V
NO_
= 1V, 0, -1V;
I
COM_
= 1mA
V+ = 5.5V, V- = -5.5V,
–
V
COM_
= ±4.5V, V
NO_
= + 4.5V
V+ = 5.5V, V- = -5.5V,
–
V
COM_
= ±4.5V, V
NO_
= + 4.5V
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
-1
-10
-2
-20
-2
-20
2.4
1.7
1.5
0.2
0.03
1
0.8
0.01
0.01
0.01
0.5
1
V-
40
V+
60
75
4
5
2.5
3
1
10
2
20
2
20
V
Ω
Ω
Ω
nA
nA
nA
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
V+ = 5.5V, V- = -5.5V, V
COM_
= ±4.5V, +25°C
V
NO_
= ±4.5V or floating
C, E
C, E
C, E
LOGIC INPUTS (Pins 11
LOGIC INPUTS (4/8,
RS, LE/CS,
A2/SCLK, A1/DIN, A0/DOUT, EN, SER/PAR)
V
INH
V
INL
V
V
V
µA
2
_______________________________________________________________________________________
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = V
L
= +4.5V to +5.5V, V- = -4.5V to -5.5V, V
INH
= +2.4V, V
INL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical val-
ues are at T
A
= +25°C, V+ = V
L
= +5V, V- = -5V.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
V
NO_
= 3V, V+ = 4.5V, V- = -4.5V,
Figure 1
V
NO_
= 3V, V+ = 4.5V, V- = -4.5V,
Figure 1
V
NO_
= ±3V, V+ = 5.5V, V- = -5.5V,
Figure 2
C
L
= 1.0nF, V
NO_
= 0, R
S
= 0,
Figure 3
T
A
+25°C
C, E
+25°C
C, E
C, E
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
+25°C
10
180
15
2
4
7
-74
-70
180
140
16
11
80
0
80
80
6.25
80
80
60
0
50
150
0
80
80
80
150
MIN
TYP
380
MAX
550
600
300
350
UNITS
SWITCH DYNAMIC CHARACTERISTICS
SWITCH DYNAMIC CHARAC-
Turn-On Time
Turn-Off Time
Break-Before-Make Time Delay
(Note 3)
Charge Injection
NO_ Off-Capacitance
COM_ Off-Capacitance
COM_ On-Capacitance
Off-Isolation (Note 7)
Channel-to-Channel Crosstalk
-3dB Bandwidth
-0.1dB Bandwidth
PARALLEL-INTERFACE TIMING
PARALLEL MODE INPUT TIM-
A_, EN to
LE
Rise Setup Time
A_, EN to
LE
Rise Hold Time
LE
Low Pulse Width
RS
Low Pulse Width
SERIAL-INTERFACE TIMING
SERIAL PERIPHERAL INTER-
Operating Frequency
SCLK Pulse Width High
SCLK Pulse Width Low
DIN to SCLK Rise Setup Time
DIN to SCLK Rise Hold Time
CS
Fall to SCLK Rise Setup Time
SCLK Rise to DOUT Valid
CS
Rise to SCLK Rise Hold Time
CS
Rise to SCLK Rise Setup
Time
CS
Fall to SCLK Rise Hold Time
RS
Low Pulse Width
f
CLK
t
CH
t
CL
t
DS
t
DH
t
CSS0
t
DO
t
CSH1
t
CSS1
t
CSS1
t
RS
Figure 7
Figure 7
Figure 7
Figure 7
Figure 7
Figure 7
C
L
= 50pF, Figure 7
Figure 7
Figure 7
Figure 7
Figure 6
C, E
C, E
C, E
C, E
C, E
C, E
C, E
C, E
C, E
C, E
C, E
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
DS
t
DH
t
L
t
RS
Figure 6
Figure 6
Figure 6
Figure 6
C, E
C, E
C, E
C, E
ns
ns
ns
ns
t
ON
t
OFF
t
BBM
Q
ns
ns
ns
pC
pF
pF
pF
dB
dB
MHz
MHz
MAX4588
C
NO_(OFF)
V
NO_
= 0, f
IN
= 1MHz, Figure 4
C
COM_(OFF)
V
COM_
= 0, f
IN
= 1MHz, Figure 4
C
COM_(ON)
V
COM_
= 0, f
IN
= 1MHz, Figure 4
V
ISO
V
CT
BW
BW
V
NO_
= 1V
RMS
, f = 10MHz,
all channels off, Figure 5
V
NO_
= 1V
RMS
, f = 10MHz, Figure 5
Figure 5
Figure 5
4-channel mode
8-channel mode
4-channel mode
8-channel mode
_______________________________________________________________________________________
3
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
MAX4588
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = V
L
= +4.5V to +5.5V, V- = -4.5V to -5.5V, V
INH
= +2.4V, V
INL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical val-
ues are at T
A
= +25°C, V+ = V
L
= +5V, V- = -5V.) (Note 2)
PARAMETER
POWER SUPPLY
POWER SUPPLY
Power-Supply Range
V+ Supply Current
V - Supply Current
V
L
Supply Current
V+, V-
V
L
I+
I-
I
L
V+ = 5.5V, V- = -5.5V
V+ = 5.5V, V- = -5.5V
V+ = 5.5V
V
L
= 5.5V, all V
IN_
= 0 or V
L
+25°C
C, E
+25°C
C, E
C, E
±2.7
2.7
-1
-10
-1
-10
-10
2
0.0001
0.0001
±6
V+
1
10
1
10
10
V
µA
µA
µA
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = V
L
= +4.5V to +5.5V, V- = 0, V
INH
= +2.4V, V
INL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C, V+ = V
L
= +5V.) (Note 2)
PARAMETER
ANALOG SWITCH
ANALOG
Analog Signal Range (Note 3)
On-Resistance
On-Resistance Match Between
Channels (Note 4)
On-Resistance Flatness
(Note 5)
NO_ Off Leakage Current
(Notes 6, 9)
COM_ Off Leakage Current
(Notes 6, 9)
COM_ On Leakage Current
(Notes 6, 9)
V
COM_
,
V
NO_
R
ON
∆R
ON
R
FLAT(ON)
I
NO_(OFF)
I
COM(OFF)
I
COM_(ON)
V+ = 5V, V
NO_
= 3V, I
COM_
= 4mA
V+ = 5V, V
NO_
= 3V, I
COM_
= 4mA
V+ = 5V, I
COM_
= 4mA,
COM_
V
NO_
= 2V, 3V, 4V
V+ = 5.5V; V
COM_
= 4.5V, 1V;
V
NO_
= 1V, 4.5V
V+ = 5.5V; V
COM_
= 4.5V, 1V;
V
NO_
= 1V, 4.5V
V+ = 5.5V; V
COM_
= 4.5V, 1V;
V
NO_
= 4.5V, 1V, or floating
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
+25°C
C, E
C, E
C, E
V
IN
= 0 or V
L
I
SINK
= 3.2mA
I
SOURCE
= -1mA
C, E
C, E
C, E
V
L
- 1
-1
-1
-10
-2
-20
-2
-20
2.4
1.7
1.5
0.2
I
IN
V
OL
V
OH
1
0.4
0.8
0.005
0.005
0.005
4
1
0
80
V+
120
150
8
10
10
12
1
10
2
20
2
20
V
Ω
Ω
Ω
nA
nA
nA
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
LOGIC INPUTS (Pins 11 through
A2/SCLK, A1/DIN, A0/DOUT, EN, SER/PAR)
INPUTS (4/8,
RS, LE/CS,
Input Logic Threshold High
Input Logic Threshold Low
Input Threshold Hysteresis
Input Current
DOUT Logic Low Output
DOUT Logic High Output
LOGIC OUTPUT (SERIAL INTERFACE)
LOGIC OUTPUT (SERIAL
V
V
V
INH
V
INL
V
V
V
µA
4
_______________________________________________________________________________________
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