19-1425; Rev 0; 1/99
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
Features
The MAX4588 low-voltage, dual 4-channel multiplexer
is designed for RF and video signal processing at frequencies up to 180MHz in 50Ω and 75Ω systems. A
flexible digital interface allows control of on-chip functions through either a parallel interface or an SPI™/
MICROWIRE™ serial port.
♦ Low Insertion Loss: -2.5dB up to 100MHz
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 channels of 4Ω max. Additionally, on-resistance is flat
across the specified signal range (2Ω max). The offleakage current is under 1nA at TA = +25°C, and less
than 10nA at TA = +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 compatibility. The MAX4588 is available in 28-pin narrow
DIP, wide SO, and space-saving SSOP packages.
♦ 180MHz -3dB Signal Bandwidth
Applications
♦ High Off-Isolation: -74dB at 10MHz
♦ Low Crosstalk: -70dB up to 10MHz
♦ 16MHz -0.1dB Signal Bandwidth
♦ 60Ω (max) On-Resistance with ±5V Supplies
♦ 4Ω (max) On-Resistance Matching with ±5V
Supplies
♦ 2Ω (max) On-Resistance Flatness with ±5V
Supplies
♦ +2.7V to +12V Single Supply
±2.7V to ±6V Dual Supplies
♦ Low Power Consumption: ±2kV ESD Protection per Method 3015.7
Video Signal Routing
Networking
♦ TTL/CMOS-Compatible Inputs with VL = +5V
High-Speed Data Acquisition
Pin Configuration
TOP VIEW
GND 1
MAX4588
COM1 2
28 COM2
27 V-
Ordering Information
PART
TEMP. RANGE
MAX4588CAI
0°C to +70°C
28 SSOP
PIN-PACKAGE
MAX4588CWI
0°C to +70°C
28 Wide SO
28 Narrow Plastic DIP
MAX4588CPI
0°C to +70°C
V+ 3
26 NO5
MAX4588EAI
-40°C to +85°C
28 SSOP
NO1 4
25 GND
MAX4588EWI
-40°C to +85°C
28 Wide SO
GND 5
24 NO6
MAX4588EPI
-40°C to +85°C
28 Narrow Plastic DIP
NO2 6
23 GND
GND 7
22 NO7
NO3 8
21 GND
GND 9
20 NO8
NO4 10
19 VL
4/8 11
RS 12
LE/CS 13
18 SER/PAR
CONTROL
LOGIC
A2/SCLK 14
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.
________________________________________________________________ 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.
MAX4588
General Description
MAX4588
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND)
V+ ........................................................................-0.3V to +13.0V
VL .......................-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
VNO_, VCOM_ (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 (TA = +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+ = VL = +4.5V to +5.5V, V- = -4.5V to -5.5V, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C, V+ = VL = +5V, V- = -5V.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
V+
V
60
Ω
ANALOG
ANALOG SWITCH
Analog Signal Range
(Note 3)
On-Resistance
On-Resistance Match Between
Channels (Note 4)
VCOM_,
VNO
V-
RON
V+ = 5V, V- = -5V, VNO_ = ±2V,
ICOM_ = 4mA
+25°C
∆RON
V+ = 5V, V- = 5V, VNO_ = ±2V,
ICOM_ = 4mA
+25°C
40
C, E
75
1
C, E
4
5
On-Resistance Flatness
(Note 5)
RFLAT(ON)
V+ = 5V; V- = -5V; VNO_ = 1V, 0, -1V;
ICOM_ = 1mA
+25°C
0.5
NO_ Off-Leakage Current
(Note 6)
INO_(OFF)
V+ = 5.5V, V- = -5.5V,
– 4.5V
VCOM_ = ±4.5V, VNO_ = +
+25°C
-1
C, E
-10
COM_ Off-Leakage Current
(Note 6)
ICOM_(OFF)
V+ = 5.5V, V- = -5.5V,
– 4.5V
VCOM_ = ±4.5V, VNO_ = +
+25°C
-2
C, E
-20
COM_ On-Leakage Current
(Note 6)
ICOM_(ON)
V+ = 5.5V, V- = -5.5V, VCOM_ = ±4.5V, +25°C
VNO_ = ±4.5V or floating
C, E
C, E
2.5
3
-2
0.01
1
10
0.01
2
20
0.01
-20
2
20
Ω
Ω
nA
nA
nA
LOGIC INPUTS
INPUTS (4/8,
(Pins RS,
11 LE/CS, A2/SCLK, A1/DIN, A0/DOUT, EN, SER/PAR)
LOGIC
Input Logic Threshold High
VINH
C, E
Input Logic Threshold Low
VINL
C, E
2.4
1.5
Input Threshold Hysteresis
Input Current
1.7
V
0.8
V
1
µA
0.4
V
0.2
IIN
VIN_ = 0 or VL
C, E
-1
0.03
V
OUTPUT(SERIAL
(SERIAL INTERFACE)
LOGIC OUTPUT
DOUT Logic Low Output
VOL
ISINK = 3.2mA
C, E
DOUT Logic High Output
VOH
ISOURCE = -1mA
C, E
2
VL - 1
_______________________________________________________________________________________
V
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
(V+ = VL = +4.5V to +5.5V, V- = -4.5V to -5.5V, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C, V+ = VL = +5V, V- = -5V.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
SWITCH DYNAMIC
DYNAMICCHARACCHARACTERISTICS
SWITCH
Turn-On Time
tON
VNO_ = 3V, V+ = 4.5V, V- = -4.5V,
Figure 1
+25°C
Turn-Off Time
tOFF
VNO_ = 3V, V+ = 4.5V, V- = -4.5V,
Figure 1
+25°C
Break-Before-Make Time Delay
(Note 3)
tBBM
VNO_ = ±3V, V+ = 5.5V, V- = -5.5V,
Figure 2
Charge Injection
Q
CL = 1.0nF, VNO_ = 0, RS = 0,
Figure 3
380
C, E
150
C, E
C, E
550
600
300
350
10
ns
ns
180
ns
+25°C
15
pC
NO_ Off-Capacitance
CNO_(OFF) VNO_ = 0, fIN = 1MHz, Figure 4
+25°C
2
pF
COM_ Off-Capacitance
CCOM_(OFF) VCOM_ = 0, fIN = 1MHz, Figure 4
+25°C
4
pF
COM_ On-Capacitance
CCOM_(ON) VCOM_ = 0, fIN = 1MHz, Figure 4
+25°C
7
pF
-74
dB
-70
dB
Off-Isolation (Note 7)
VISO
VNO_ = 1VRMS, f = 10MHz,
all channels off, Figure 5
+25°C
Channel-to-Channel Crosstalk
VCT
VNO_ = 1VRMS, f = 10MHz, Figure 5
+25°C
4-channel mode
180
-3dB Bandwidth
BW
Figure 5
-0.1dB Bandwidth
BW
Figure 5
A_, EN to LE Rise Setup Time
tDS
Figure 6
C, E
80
ns
A_, EN to LE Rise Hold Time
tDH
Figure 6
C, E
0
ns
LE Low Pulse Width
tL
Figure 6
C, E
80
ns
RS Low Pulse Width
tRS
Figure 6
C, E
80
ns
Operating Frequency
fCLK
Figure 7
C, E
SCLK Pulse Width High
tCH
Figure 7
C, E
80
ns
SCLK Pulse Width Low
tCL
Figure 7
C, E
80
ns
DIN to SCLK Rise Setup Time
tDS
Figure 7
C, E
60
ns
DIN to SCLK Rise Hold Time
tDH
Figure 7
C, E
0
ns
tCSS0
Figure 7
C, E
50
CL = 50pF, Figure 7
C, E
8-channel mode
4-channel mode
8-channel mode
+25°C
MHz
140
16
+25°C
MHz
11
PARALLEL-INTERFACE
TIMING
PARALLEL
MODE INPUT TIM-
SERIAL-INTERFACE
SERIAL PERIPHERAL TIMING
INTER-
CS Fall to SCLK Rise Setup Time
SCLK Rise to DOUT Valid
tDO
6.25
MHz
ns
150
ns
CS Rise to SCLK Rise Hold Time
tCSH1
Figure 7
C, E
0
ns
CS Rise to SCLK Rise Setup
Time
tCSS1
Figure 7
C, E
80
ns
CS Fall to SCLK Rise Hold Time
tCSS1
Figure 7
C, E
80
ns
tRS
Figure 6
C, E
80
ns
RS Low Pulse Width
_______________________________________________________________________________________
3
MAX4588
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
MAX4588
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = VL = +4.5V to +5.5V, V- = -4.5V to -5.5V, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C, V+ = VL = +5V, V- = -5V.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
POWERSUPPLY
SUPPLY
POWER
Power-Supply Range
V+, V-
±2.7
±6
VL
2.7
V+
V+ Supply Current
I+
V+ = 5.5V, V- = -5.5V
V - Supply Current
I-
V+ = 5.5V, V- = -5.5V
V+ = 5.5V
VL Supply Current
IL
VL = 5.5V, all VIN_ = 0 or VL
+25°C
-1
C, E
-10
+25°C
-1
C, E
-10
C, E
-10
0.0001
1
10
0.0001
1
10
2
10
V
µA
µA
µA
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = VL = +4.5V to +5.5V, V- = 0, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA
= +25°C, V+ = VL = +5V.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
V+
V
120
Ω
ANALOG
ANALOG SWITCH
Analog Signal Range (Note 3)
On-Resistance
On-Resistance Match Between
Channels (Note 4)
VCOM_,
VNO_
0
RON
V+ = 5V, VNO_ = 3V, ICOM_ = 4mA
∆RON
V+ = 5V, VNO_ = 3V, ICOM_ = 4mA
+25°C
80
C, E
150
+25°C
1
C, E
8
10
On-Resistance Flatness
(Note 5)
RFLAT(ON)
COM_ = 4mA,
V+ = 5V, ICOM_
VNO_ = 2V, 3V, 4V
+25°C
4
NO_ Off Leakage Current
(Notes 6, 9)
INO_(OFF)
V+ = 5.5V; VCOM_ = 4.5V, 1V;
VNO_ = 1V, 4.5V
+25°C
-1
C, E
-10
COM_ Off Leakage Current
(Notes 6, 9)
ICOM(OFF)
V+ = 5.5V; VCOM_ = 4.5V, 1V;
VNO_ = 1V, 4.5V
+25°C
-2
C, E
-20
COM_ On Leakage Current
(Notes 6, 9)
ICOM_(ON)
V+ = 5.5V; VCOM_ = 4.5V, 1V;
VNO_ = 4.5V, 1V, or floating
+25°C
-2
C, E
-20
2.4
C, E
10
12
0.005
1
10
0.005
2
20
0.005
2
20
Ω
Ω
nA
nA
nA
LOGIC INPUTS
INPUTS(Pins
(4/8, 11
RS,through
LE/CS, A2/SCLK, A1/DIN, A0/DOUT, EN, SER/PAR)
Input Logic Threshold High
VINH
C, E
Input Logic Threshold Low
VINL
C, E
1.5
Input Threshold Hysteresis
Input Current
1.7
V
0.8
0.2
IIN
VIN = 0 or VL
C, E
-1
V
V
1
µA
0.4
V
LOGIC
LOGIC OUTPUT
OUTPUT (SERIAL
(SERIAL INTERFACE)
DOUT Logic Low Output
VOL
ISINK = 3.2mA
C, E
DOUT Logic High Output
VOH
ISOURCE = -1mA
C, E
4
VL - 1
_______________________________________________________________________________________
V
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
(V+ = VL = +4.5V to +5.5V, V- = 0, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA
= +25°C, V+ = VL = +5V.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
SWITCH DYNAMIC
DYNAMICCHARACCHARACTERISTICS
SWITCH
Turn-On Time
tON
VNO_ = 3V, V+ = 4.5V, Figure 1
Turn-Off Time
tOFF
VNO_ = 3V, V+ = 4.5V, Figure 1
Break-Before-Make Time Delay
(Note 3)
tBBM
VNO_ = 3V, V+ = 5.5V, Figure 2
Charge Injection
Q
+25°C
550
C, E
+25°C
150
C, E
C, E
800
900
300
350
10
ns
ns
200
ns
CL = 1.0nF, VNO_ = 2.5V, RS = 0,
Figure 3
+25°C
5
pC
-65
dB
-70
dB
Off-Isolation
VISO
VNO_ = 1VRMS, f = 10MHz,
all channels off, Figure 5
+25°C
Channel-to-Channel Crosstalk
VCT
VNO_ = 1VRMS, f = 10MHz, Figure 5
+25°C
4-channel mode
-3dB Bandwidth
BW
Figure 5
-0.1dB Bandwidth
BW
Figure 5
A_, EN to LE Rise Setup Time
tDS
Figure 6
C, E
A_, EN to LE Rise Hold Time
8-channel mode
4-channel mode
8-channel mode
100
+25°C
MHz
75
10
+25°C
MHz
7
PARALLEL-INTERFACE
PARALLEL MODE INPUT TIMING
TIM80
ns
tDH
Figure 6
C, E
0
ns
LE Low Pulse Width
tL
Figure 6
C, E
80
ns
RS Low Pulse Width
tRS
Figure 6
C, E
80
ns
Operating Frequency
fCLK
Figure 7
C, E
SCLK Pulse Width High
tCH
Figure 7
C, E
80
ns
SCLK Pulse Width Low
tCL
Figure 7
C, E
80
ns
DIN to SCLK Rise Setup Time
tDS
Figure 7
C, E
60
ns
DIN to SCLK Rise Hold Time
tDH
Figure 7
C, E
0
ns
CS Fall to SCLK Rise Setup Time
tCSS0
Figure 7
C, E
50
ns
CS Fall to SCLK Rise Hold Time
tCSS1
Figure 7
C, E
80
ns
CS Rise to SCLK Rise Hold Time
tCSH1
Figure 7
C, E
0
ns
CS Rise to SCLK Rise Setup
Time
tCSS1
Figure 7
C, E
80
ns
SERIAL-INTERFACE
SERIAL PERIPHERAL TIMING
INTER-
SCLK Rise to DOUT Valid
tDO
CL = 50pF, Figure 7
C, E
RS Low Pulse Width
tRS
Figure 6
C, E
6.25
150
80
MHz
ns
ns
_______________________________________________________________________________________
5
MAX4588
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
MAX4588
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = VL = +4.5V to +5.5V, V- = 0, VINH = +2.4V, VINL = +0.8V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA
= +25°C, V+ = VL = +5V.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
POWERSUPPLY
SUPPLY
POWER
V+
Power-Supply Range
VL
V+ ≤ 6.5V
V+ > 6.5V
V+ Supply Current
I+
V+ = 5.5V, VIN = 0 or VL
VL Supply Current
IL
VL = 5.5V, all VIN_ = 0 or VL
2.7
12
2.7
V+
2.7
6.5
+25°C
-1
1
C, E
-10
10
C, E
-10
2
10
V
µA
µA
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = VL = +2.7V to +3.6V, V- = 0, VINH = +2V, VINL = +0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA =
+25°C, V+ = VL = +3.0V.)
PARAMETER
SYMBOL
CONDITIONS
TA
MIN
TYP
MAX
UNITS
V+
V
350
Ω
ANALOG SWITCH
SWITCH
ANALOG
Analog Signal Range
On-Resistance
VCOM_,
VNO_
RON
0
V+ = 2.7V, VNO_ = 1V,
ICOM_ = 1mA
+25°C
240
C, E
450
LOGIC INPUT
(Pins
through
INPUTS
(4/8,11RS,
LE/CS, A2/SCLK, A1/DIN, A0/DOUT, EN, SER/PAR)
Input Logic Threshold High
VINH
C, E
Input Logic Threshold Low
VINL
C, E
Input Current
IIN
VIN_ = 0 or VL
C, E
2.0
V
-1
0.5
V
1
µA
SWITCH DYNAMIC
DYNAMICCHARACCHARACTERISTICS
SWITCH
Turn-On Time
tON
VNO_ = 1.5V, V+ = 2.7V, Figure 1
Turn-Off Time
tOFF
VNO_ = 1.5V, V+ = 2.7V, Figure 1
Break-Before-Make Time Delay
(Note 3)
tBBM
VNO_ = 1.5V, V+ = 3.6V, Figure 2
+25°C
700
C, E
1000
200
+25°C
250
C, E
400
500
350
ns
ns
+25°C
10
ns
200
ns
PARALLEL-INTERFACE
PARALLEL MODE INPUT TIMING
TIMA_, EN to LE Rise Setup Time
tDS
Figure 6
C, E
A_, EN to LE Rise Hold Time
tDH
Figure 6
C, E
0
ns
LE Low Pulse Width
tL
Figure 6
C, E
200
ns
RS Low Pulse Width
tRS
Figure 6
C, E
200
ns
Operating Frequency
fCLK
Figure 7
C, E
SCLK Pulse Width High
tCH
Figure 7
C, E
200
ns
SCLK Pulse Width Low
tCL
Figure 7
C, E
200
ns
DIN to SCLK Rise Setup Time
tDS
Figure 7
C, E
100
ns
DIN to SCLK Rise Hold Time
tDH
Figure 7
C, E
0
ns
RS Low Pulse Width
tRS
Figure 6
C, E
200
ns
SERIAL-INTERFACE
SERIAL PERIPHERAL TIMING
INTER-
6
2.1
_______________________________________________________________________________________
MHz
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
(V+ = VL = +2.7V to +3.6V, V- = 0, VINH = +2V, VINL = +0.5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA =
+25°C, V+ = VL = +3.0V.)
PARAMETER
SYMBOL
TA
MIN
CS Fall to SCLK Rise Setup Time
tCSS0
Figure 7
C, E
100
ns
CS Rise to SCLK Rise Hold Time
tCSH1
Figure 7
C, E
0
ns
CS Rise to SCLK Rise Setup
Time
tCSS1
Figure 7
C, E
200
ns
CS Fall to SCLK Rise Hold Time
tCSS1
Figure 7
C, E
200
ns
CL = 50pF, Figure 7
C, E
SCLK Rise to DOUT Valid
tDO
CONDITIONS
TYP
MAX
250
UNITS
ns
POWERSUPPLY
SUPPLY
POWER
V+ Supply Current
I+
V+ = 3.6V, VIN = 0 or VL
VL Supply Current
IL
VL = 3.6V, all VIN = 0 or VL
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
+25°C
-1
1
C, E
-10
10
C, E
-10
1
10
µA
µA
The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Guaranteed by design.
∆RON = ∆RON(MAX) - ∆RON(MIN).
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.
Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at TA = +25°C.
Off isolation = 20log10 [VCOM_ / (VNC_ or VNO_)], VCOM_ = output, VNC_ or VNO_ = input to off switch.
Between any two switches.
Leakage testing for single-supply operation is guaranteed by testing with dual supplies.
_______________________________________________________________________________________
7
MAX4588
ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)
Typical Operating Characteristics
(V+ = VL = +5V, V- = -5V, TA = +25°C, unless otherwise noted.)
ON-RESISTANCE vs. VCOM
(SINGLE SUPPLY)
ON-RESISTANCE vs. VCOM
(DUAL SUPPLIES)
250
±2.5V
ON-RESISTANCE (Ω)
ON-RESISTANCE (Ω)
±3V
60
±4V
50
±5V
40
30
±6V
V- = 0
V+ = +2.5V
200
80
70
20
150
V+ = +3.0V
V+ = +3.6V
100
V+ = +5V
V+ = +9V
50
10
V+ = +12V
0
0
-6
-4
-2
0
2
4
0
6
4
8
6
10
12
VCOM (V)
ON-RESISTANCE vs. VCOM
AND TEMPERATURE (DUAL SUPPLIES)
ON-RESISTANCE vs. VCOM
AND TEMPERATURE (SINGLE SUPPLY)
V- = 0
130
120
55
TA = +85°C
50
TA = +50°C
45
TA = +25°C
40
TA = 0°C
35
ON-RESISTANCE (Ω)
60
MAX4588-04
140
MAX4588-03
65
ON-RESISTANCE (Ω)
2
VCOM (V)
70
TA = -40°C
30
25
110
TA = +85°C
100
TA = +50°C
90
TA = +25°C
80
70
TA = 0°C
60
TA = -40°C
50
20
40
-5
-4
-3
-2
-1
0
1
2
3
4
5
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VCOM (V)
VCOM (V)
ON/OFF-LEAKAGE CURRENT
vs. TEMPERATURE
CHARGE INJECTION vs. VCOM
30
CHARGE INJECTION (pC)
1n
100p
ON-LEAKAGE
10p
OFF-LEAKAGE
1p
MAX4588-06
35
MAX4588-05
10n
25
DUAL SUPPLIES
20
15
10
SINGLE SUPPLY
5
0
0.1p
-40
-20
0
20
40
60
TEMPERATURE (°C)
8
MAX4588-02
90
MAX4588-01
100
LEAKAGE CURRENT (A)
MAX4588
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
80
100 120
-5
-4
-3
-2
-1
0
1
2
3
VCOM (V)
_______________________________________________________________________________________
4
5
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
ON/OFF TIME vs. TEMPERATURE
tON
200
300
200
tOFF
tOFF
100n
10n
1n
100p
I+
100
100
I-
10p
0
0
3.0
3.5
4.0
4.5
5.0
5.5
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
6.0
10
0
ON LOSS
40
10
0
AMPLITUDE (dB)
RS = 75Ω
RL = 600Ω
-30
20
60
80
100 120
INSERTION LOSS, OFF-ISOLATION,
AND CROSSTALK vs. FREQUENCY
(SINGLE SUPPLY)
INSERTION LOSS
-10
-20
0
TEMPERATURE (°C)
INSERTION LOSS, OFF-ISOLATION,
AND CROSSTALK vs. FREQUENCY
(DUAL SUPPLIES)
-10
1p
-40 -20
TEMPERATURE (°C)
SUPPLY VOLTAGE (±V)
MAX4588-10
2.5
-40
-50
-60
MAX4588-11
300
IL
1µ
SUPPLY CURRENT (A)
tON, tOFF (ns)
400
10µ
MAX4588-08
MAX4588-07
400
tON
AMPLITUDE (dB)
tON, tOFF (ns)
500
SUPPLY CURRENT vs. TEMPERATURE
500
MAX4588-09
ON/OFF TIME vs. SUPPLY VOLTAGE
600
-20
RS = 75Ω
RL = 600Ω
-30
-40
-50
CROSSTALK
-60
OFF-ISOLATION
-70
-70
CROSSTALK
-80
OFF-ISOLATION
-80
-90
-90
100k
1M
10M
FREQUENCY (Hz)
100M
1G
100k
1M
10M
100M
1G
FREQUENCY (Hz)
_______________________________________________________________________________________
9
MAX4588
Typical Operating Characteristics (continued)
(V+ = VL = +5V, V- = -5V, TA = +25°C, unless otherwise noted.)
MAX4588
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
Pin Description
PIN
NAME
1, 5, 7,
9, 21,
23, 25
GND
2
COM1
3
V+
4
NO1
Normally Open Analog Input Terminal. See Truth Tables.
6
NO2
Normally Open Analog Input Terminal. See Truth Tables.
8
NO3
Normally Open Analog Input Terminal. See Truth Tables.
10
NO4
Normally Open Analog Input Terminal. See Truth Tables.
11
4/8
Multiplexer Configuration Control. Connect to VL to select dual 2-channel mode. Connect to GND for single
4-channel multiplexer operation. See Truth Tables.
12
RS
Active-Low Reset Input. In serial mode, drive RS low to force the latches and shift registers to the poweron reset state and force all switches open. In parallel mode, drive RS low to force the latches to the poweron reset state and force all switches open. See Truth Tables.
13
LE/CS
14
A2/SCLK
15
A1/DIN
16
A0/DOUT
17
EN
Switch Enable. Drive EN low to force all channels off. Drive high to allow normal multiplexer operation.
Operates asynchronously in serial mode. In parallel mode, EN is latched when LE signal is high.
18
SER/PAR
Interface Select Input. Drive low for parallel data interface operation. Drive high for serial data interface
operation and to enable the DOUT driver.
19
VL
Logic Supply Input. Powers the DOUT driver and other digital circuitry. VL sets both the digital input and
output logic levels.
20
NO8
Normally Open Analog Input Terminal. See Truth Tables.
22
NO7
Normally Open Analog Input Terminal. See Truth Tables.
24
NO6
Normally Open Analog Input Terminal. See Truth Tables.
26
NO5
Normally Open Analog Input Terminal. See Truth Tables.
27
V-
28
COM2
10
FUNCTION
Ground. Connect all ground pins to a ground plane. See Grounding section.
Analog Switch Common Terminal. See Truth Table.
Analog Positive Supply Voltage Input
In parallel mode, this pin is the transparent Latch Enable. In the serial mode, this pin is the Chip-Select
Input. See Truth Tables.
Most Significant Address Bit in parallel mode with 4/8 low. If 4/8 pin is high, this pin is ignored. In the serial
mode, this is the Serial Shift Clock Input. Data is loaded on the rising edge of SCLK. See Truth Tables.
Address Input in the parallel mode. Serial Data Input in serial mode. In serial mode, data is loaded on
SCLK’s rising edge.
Least Significant Address Input in the parallel mode. In the serial mode this is an output from the internal
4-bit shift register. DOUT is intended for daisy-chain cascading. DOUT is not three-stated by CS. See
Serial Operation.
Analog Negative Supply Voltage Input. Connect to ground plane for single-supply operation.
Analog Switch Common Terminal. See Truth Tables.
______________________________________________________________________________________
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
MAX4588
V+
V+
LE/CS
NO_
EN
VNO_
50%
50%
MAX4588
EN
COM_
90%
VOUT
300Ω
30pF
GND
V-
90%
VOUT
tOFF
tON
V-
Figure 1. Turn-On/Turn-Off Time
V+
V+
NO_
LE/CS
A0
NO_
SER/PAR
VNO_
VOUT
MAX4588
A0
90%
VOUT
COM_
300Ω
30pF
GND
GND
V-
tBBM
V-
Figure 2. Break-Before-Make Time Delay
V+
V+
LE/CS
NO_
VNO_
1nF
SER/PAR
10µF
EN
VOUT
VOUT
MAX4588
EN
COM_
CL
GND
V-
∆VOUT
Q = ∆VOUT · CL
V∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
Figure 3. Charge Injection
______________________________________________________________________________________
11
MAX4588
Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer
V+
FLOATING
NO_
V+
NO_
1MHz
CAPACITANCE
ANALYZER
MAX4588
MAX4588
FLOATING
COM_
COM_
1MHz
CAPACITANCE
ANALYZER
GND
V-
GND
V-
Figure 4. NO_, COM_ Capacitance
V+
V+
NO_
50Ω
49.9Ω
56Ω
MAX4588
+
-
NO_
MEASURE
NODE
24.9Ω
50Ω
V-
COM_
MEASURE
NODE
560Ω
50Ω
VALL SIGNALS NORMALIZED TO VCOM = 0dB.
Figure 5. Off-Isolation, Crosstalk, and Bandwidth
tL
LE
tDS
tDH
MAX4588
A0, A1, A2, EN
tRS
RS
NOTE: ALL INPUT SIGNALS ARE SPECIFIED WITH tR AND tF
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