19-1424; Rev 0; 1/99
Low-Voltage, High-Isolation,
Dual 2-Channel RF/Video Multiplexer
General Description
The MAX4589 low-voltage, dual 2-channel multiplexer is
designed for RF and video signal processing at frequen-
cies up to 200MHz in 50Ω and 75Ω systems. On-chip
functions are controlled through either a parallel interface
or an SPI™/QSPI™/MICROWIRE™ serial interface.
Each channel of the MAX4589 is designed using a “T”
switch configuration, ensuring excellent high-frequency
off-isolation. The MAX4589 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 MAX4589 operates from single +2.7V to +12V or
dual ±2.7V to ±6V supplies. When operating with a
positive supply of +5V, the inputs maintain TTL/CMOS-
level compatibility. The MAX4589 is available in 20-pin
DIP, wide SO, and SSOP packages.
o
High Off-Isolation: -74dB at 10MHz
o
Low Crosstalk: < -70dB up to 10MHz
o
20MHz -0.1dB Signal Bandwidth
o
200MHz -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 Operation
±2.7V to ±6V Dual-Supply Operation
o
Low Power Consumption: <20µW
o
Rail-to-Rail
®
‚ Bidirectional Signal Handling
o
Parallel or SPI/QSPI/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
MAX4589
Applications
RF Switching
Video Signal Routing
High-Speed Data Acquisition
Automatic Test Equipment
Networking
Pin Configuration
PART
TOP VIEW
GND 1
COM1 2
V+ 3
NO1 4
GND 5
NO2 6
2/4 7
RS 8
CONTROL LOGIC
LE/CS 9
A1/SCLK 10
12 EN
11 A0/DOUT
Ordering Information
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
20 SSOP
20 Wide SO
20 Plastic DIP
20 SSOP
20 Wide SO
20 Plastic DIP
MAX4589CAP
MAX4589
20 SER/PAR
19 COM2
18 V-
17 NO3
16 GND
15 NO4
14 V
L
13 DIN
MAX4589CWP
MAX4589CPP
MAX4589EAP
MAX4589EWP
MAX4589EPP
SSOP/SO/DIP
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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 1-800-835-8769.
Low-Voltage, High-Isolation,
Dual 2-Channel RF/Video Multiplexer
MAX4589
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND)
V+ ...........................................................................-0.3V to +13V
V
L
......................-0.3V to (V+ + 0.3V) or 7V (whichever is lower)
V- ...........................................................................-13V to +0.3V
V+ to V-...................................................................-0.3V to +13V
V
NO_
, V
COM_
to GND (Note 1)..............(V- - 0.3V) to (V+ + 0.3V)
2/4,
RS, LE, CS,
A1/SCLK,
A0/DOUT, EN, DIN, 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 9.1mW/°C above +70°C)............................727mW
Wide SO (derate 10mW/°C above +70°C)........................800mW
Plastic DIP (derate 11.1mW/°C above +70°C) .................889mW
Operating Temperature Ranges
MAX4589C_ P ......................................................0°C to +70°C
MAX4589E_ P ...................................................-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 Signal Range (Note 3)
On-Resistance
On-Resistance Match Between
Channels (Note 4)
On-Resistance Flatness
(Note 5)
V
COM_,
V
NO_
R
ON
∆R
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_
= 4mA
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
V+ = 5.5V, V- = -5.5V,
V
COM_
= ±4.5V,
V
NO_
= 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
-1
-10
-2
-20
-2
-20
0.01
0.01
0.01
0.5
1
V-
40
V+
60
75
4
5
2.5
3
1
nA
10
2
nA
20
2
nA
20
V
Ω
Ω
SYMBOL
CONDITIONS
T
A
MIN
TYP
MAX
UNITS
R
FLAT(ON)
Ω
NO_ Off-Leakage Current
(Note 6)
I
NO_ (OFF)
COM_ Off-Leakage Current
(Note 6)
I
COM_ (OFF)
COM_ On-Leakage Current
(Note 6)
I
COM_ (ON)
4
LOGIC INPUTS (2/4,
RS, LE/CS,
A1/SCLK, AO/DOUT, EN, DIN, SER/PAR)
Input Logic Threshold High
Input Logic Threshold Low
Input Threshold Hysteresis
Input Current
I
IN
V
IN_
= 0 or V
L
C, E
-1
V
INH
V
INL
C, E
C, E
2.4
1.7
1.5
0.2
0.03
1
0.8
V
V
V
µA
2
_______________________________________________________________________________________
Low-Voltage, High-Isolation,
Dual 2-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
DOUT Logic Low Output
DOUT Logic High Output
SYMBOL
V
OL
V
OH
CONDITIONS
I
SINK
= 3.2mA
I
SOURCE
= -1mA
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
V
NO_
= 0, f
IN
= 1MHz, Figure 4
V
COM_
= 0, f
IN
= 1MHz, Figure 4
V
COM_
= 0, f
IN
= 1MHz, Figure 4
V
NO_
= 1V
RMS
, f = 10MHz,
all channels off, Figure 5
V
NO_
= 1V
RMS
, f = 10MHz,
Figure 5
Figure 5
Figure 5
2-channel mode
4-channel mode
2-channel mode
4-channel mode
T
A
C, E
C, E
+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
6
-74
-70
200
150
20
15
80
0
80
80
6.25
80
80
60
0
150
V
L
- 1
380
550
600
300
350
MIN
TYP
MAX
0.4
UNITS
V
V
LOGIC OUTPUT (SERIAL INTERFACE)
MAX4589
SWITCH DYNAMIC CHARACTERISTICS
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
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
Operating Frequency
SCLK Pulse Width High
SCLK Pulse Width Low
DIN to SCLK Rise Setup Time
DIN to SCLK Rise Hold Time
t
DS
t
DH
t
L
t
RS
f
CLK
t
CH
t
CL
t
DS
t
DH
Figure 6
Figure 6
Figure 6
Figure 6
Figure 7
Figure 7
Figure 7
Figure 7
Figure 7
C, E
C, E
C, E
C, E
C, E
C, E
C, E
C, E
C, E
ns
ns
ns
ns
MHz
ns
ns
ns
ns
t
ON
t
OFF
t
BBM
Q
C
NO_(OFF)
C
COM_(OFF)
C
COM_(ON)
V
ISO
V
CT
BW
BW
ns
ns
ns
pC
pF
pF
pF
dB
dB
MHz
MHz
_______________________________________________________________________________________
3
Low-Voltage, High-Isolation,
Dual 2-Channel RF/Video Multiplexer
MAX4589
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
CS
Fall to SCLK Rise Setup Time
CS
Fall to SCLK Rise Hold Time
CS
Rise to SCLK Rise Hold Time
CS
Rise to SCLK Rise Setup
Time
SCLK Rise to DOUT Valid
RS
Low Pulse Width
POWER SUPPLY
Power-Supply Range
V+ Supply Current
V- Supply Current
V
L
Supply Current
SYMBOL
t
CSS0
t
CSS1
t
CSH1
t
CSS1
t
DO
t
RS
V+, V-
V
L
I+
I-
I
L
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
Figure 7
Figure 7
Figure 7
Figure 7
C
L
= 50pF, Figure 7
Figure 6
CONDITIONS
T
A
C, E
C, E
C, E
C, E
C, E
C, E
80
±2.7
+2.7
-1
-10
-1
-10
-10
2
0.0001
0.0001
±6
V+
1
10
1
10
10
MIN
50
80
0
80
150
TYP
MAX
UNITS
ns
ns
ns
ns
ns
ns
V
µA
µA
µA
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 Signal Range (Note 3)
On-Resistance
On-Resistance Match Between
Channels (Note 4)
On-Resistance Flatness
(Note 5)
NO_ Off-Leakage Current
(Notes 6, 8)
COM_ Off-Leakage Current
(Notes 6, 8)
COM_ On-Leakage Current
(Notes 6, 8)
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;
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
-1
-10
-2
-20
-2
-20
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
4
_______________________________________________________________________________________
Low-Voltage, High-Isolation,
Dual 2-Channel RF/Video Multiplexer
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(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
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
V
NO__
= 3V, V+ = 4.5V,
Figure 1
V
NO__
= 3V, V+ = 4.5V,
Figure 1
V
NO__
= 3V, V+ = 5.5V,
Figure 2
C
L
= 1.0nF, V
NO_
= 2.5V,
R
S
= 0, Figure 3
V
NO_
= 1V
RMS
, f = 10MHz,
all channels off, Figure 5
V
NO_
= 1V
RMS
, f = 10MHz,
Figure 5
Figure 5
Figure 5
2-channel mode
4-channel mode
2-channel mode
4-channel mode
C, E
C, E
C, E
+25°C
C, E
+25°C
C, E
C, E
+25°C
+25°C
+25°C
+25°C
+25°C
10
200
5
-65
-70
100
75
10
7
80
0
80
80
150
V
L
- 1
550
800
900
300
350
-1
LOGIC OUTPUT (SERIAL INTERFACE)
0.4
V
V
SYMBOL
V
INH
V
INL
CONDITIONS
T
A
C, E
C, E
MIN
2.4
TYP
1.7
1.5
0.2
1
0.8
MAX
UNITS
V
V
V
µA
4
LOGIC INPUTS (2/4,
RS, LE/CS,
A1/SCLK, AO/DOUT, EN, DIN, SER/PAR
MAX4589
SWITCH DYNAMIC CHARACTERISTICS
Turn-On Time
Turn-Off Time
Break-Before-Make Time Delay
(Note 3)
Charge Injection
Off-Isolation
Channel-to-Channel Crosstalk
-3dB Bandwidth
-0.1dB Bandwidth
PARALLEL-INTERFACE TIMING
A_, EN to
LE
Rise Setup Time
A_, EN to
LE
Rise Hold Time
LE
Low Pulse Width
RS
Low Pulse Width
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
V
ISO
V
CT
BW
BW
ns
ns
ns
pC
dB
dB
MHz
MHz
_______________________________________________________________________________________
5
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