MAXIM MAX4588 Technical data

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General Description

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.

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 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.

Applications

RF Switching Automatic Test Equipment
Video Signal Routing Networking
High-Speed Data Acquisition

Features

♦ Low Insertion Loss: -2.5dB up to 100MHz
♦ High Off-Isolation: -74dB at 10MHz
♦ Low Crosstalk: -70dB up to 10MHz
♦ 16MHz -0.1dB Signal Bandwidth
♦ 180MHz -3dB 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: <20µW
♦ Rail-to-Rail

®

, Bidirectional Signal Handling

♦ Parallel or SPI/MICROWIRE-Compatible Serial

Interface

♦ >±2kV ESD Protection per Method 3015.7
♦ TTL/CMOS-Compatible Inputs with V

L

= +5V

MAX4588

Low-Voltage, High-Isolation,

Dual 4-Channel RF/Video Multiplexer

________________________________________________________________

Maxim Integrated Products

1

28
27
26
25
24
23
22
21
20
19
18
17
16
15

1
2
3
4
5
6
7
8

9
10
11
12
13
14

COM2
V­NO5
GND
NO6
GND

A1/DIN

NO7
GND
NO8
V

L

SER/PAR
EN
A0/DOUT

A2/SCLK

LE/CS

RS

4/8

NO4

GND

NO3

GND

NO2

GND

NO1

V+

COM1

GND

SSOP/SO/DIP

TOP VIEW

MAX4588

CONTROL

LOGIC

19-1425; Rev 0; 1/99

PART TEMP. RANGE PIN-PACKAGE

Pin Configuration

Ordering Information

MAX4588CPI 0°C to +70°C 28 Narrow Plastic DIP
MAX4588EAI
MAX4588EWI -40°C to +85°C

-40°C to +85°C 28 SSOP
28 Wide SO

MAX4588EPI -40°C to +85°C 28 Narrow Plastic 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.

MAX4588CAI

0°C to +70°C 28 SSOP

MAX4588CWI 0°C to +70°C 28 Wide SO

MAX4588

Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS—Dual Supplies

(V+ = VL= +4.5V to +5.5V, V- = -4.5V to -5.5V, V

INH

= +2.4V, V

INL

= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical val-

ues are at T

A

= +25°C, V+ = VL= +5V, V- = -5V.) (Note 2)

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.

(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.

+25°C

V+ = 5V, V- = -5V, V

NO_

= ±2V,

I

COM_

= 4mA

C, E

+25°C

C, E

C, E

+25°C

C, E

+25°C

T

A

+25°C

V+ = 5.5V, V- = -5.5V,
V

COM_

= ±4.5V, V

NO_

=

–

+

4.5V

V+ = 5V, V- = 5V, V

NO_

= ±2V,

I

COM_

= 4mA

C, E

V+ = 5V; V- = -5V; V

NO_

= 1V, 0, -1V;

I

COM_

= 1mA

+25°C

CONDITIONS

V+ = 5.5V, V- = -5.5V, V

COM_

= ±4.5V,

V

NO_

= ±4.5V or floating

C, E

V+ = 5.5V, V- = -5.5V,
V

COM_

= ±4.5V, V

NO_

=

–

+

4.5V

C, E

C, E
C, E

V

IN_

= 0 or V

L

nA

-2 0.01 2

I

COM_(ON)

COM_ On-Leakage Current
(Note 6)

-20 20

nA

-2 0.01 2

I

COM_(OFF)

COM_ Off-Leakage Current
(Note 6)

LOGIC OUTPUT (SERIAL

µA-1 0.03 1I

IN

Input Current

V0.2Input Threshold Hysteresis

-20 20

LOGIC INPUTS (Pins 11

V2.4 1.7V

INH

Ω

40 60

R

ON

On-Resistance

VV- V+

V

COM_

,

V

NO

ANALOG SWITCH

Analog Signal Range
(Note 3)

Input Logic Threshold High

V1.5 0.8V

INL

-10 10

nA

-1 0.01 1

I

NO_(OFF)

NO_ Off-Leakage Current
(Note 6)

Ω

3

75

Ω

14

∆R

ON

On-Resistance Match Between
Channels (Note 4)

5

0.5 2.5

R

FLAT(ON)

On-Resistance Flatness
(Note 5)

UNITSMIN TYP MAXSYMBOLPARAMETER

Input Logic Threshold Low

C, E

C, E

I

SOURCE

= -1mA

I

SINK

= 3.2mA

VVL - 1V

OH

V0.4V

OL

DOUT Logic Low Output
DOUT Logic High Output

ANALOG SWITCH

LOGIC INPUTS (4/8, RS, LE/CS, A2/SCLK, A1/DIN, A0/DOUT, EN, SER/PAR)

LOGIC OUTPUT (SERIAL INTERFACE)

MAX4588

Low-Voltage, High-Isolation,

Dual 4-Channel RF/Video Multiplexer

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)

(V+ = VL= +4.5V to +5.5V, V- = -4.5V to -5.5V, V

INH

= +2.4V, V

INL

= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical val-

ues are at T

A

= +25°C, V+ = VL= +5V, V- = -5V.) (Note 2)

4-channel mode

T

A

8-channel mode
4-channel mode
8-channel mode

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

+25°C

+25°C

C, E

+25°C

C, E

+25°C

C, E

V

NO_

= 0, fIN= 1MHz, Figure 4

+25°C

CL= 1.0nF, V

NO_

= 0, RS= 0,

Figure 3

V

NO_

= ±3V, V+ = 5.5V, V- = -5.5V,

Figure 2

V

NO_

= 3V, V+ = 4.5V, V- = -4.5V,

Figure 1
V

NO_

= 3V, V+ = 4.5V, V- = -4.5V,

Figure 1

+25°C

+25°C

V

NO_

= 1V

RMS

, f = 10MHz,

all channels off, Figure 5

V

COM_

= 0, fIN= 1MHz, Figure 4

+25°C

V

COM_

= 0, fIN= 1MHz, Figure 4

+25°C
+25°C

Figure 5

V

NO_

= 1V

RMS

, f = 10MHz, Figure 5

Figure 5

V

ISO

Off-Isolation (Note 7)

pF7C

COM_(ON)

pF4

C

COM_(OFF)

COM_ Off-Capacitance
COM_ On-Capacitance

PARALLEL MODE INPUT TIM-

11

MHz

16

BW-0.1dB Bandwidth

dB-74
dB-70V

CT

Channel-to-Channel Crosstalk

MHz

180

BW

SWITCH DYNAMIC CHARAC-

-3dB Bandwidth
140

pF2C

NO_(OFF)

NO_ Off-Capacitance

pC15QCharge Injection

ns10 180t

BBM

Break-Before-Make Time Delay
(Note 3)

ns

380 550

t

ON

Turn-On Time

600

ns

150 300

t

OFF

Turn-Off Time

350

C, EFigure 6

C, E

C, E

C, E

C, E
C, E
C, E

Figure 7

C, E

Figure 7

Figure 7

Figure 6
Figure 6
Figure 6

C, E

C, E

Figure 7

Figure 7

Figure 7

C, E
C, E
C, E

Figure 7
Figure 7
Figure 7

ns50t

CSS0

CS Fall to SCLK Rise Setup Time

ns0t

DH

ns60t

DS

DIN to SCLK Rise Setup Time
DIN to SCLK Rise Hold Time

ns0t

CSH1

CS

Rise to SCLK Rise Hold Time

ns80t

CSS1

CS

Rise to SCLK Rise Setup

Time

ns80t

CSS1

ns80t

DS

A_, EN to LE Rise Setup Time

CS

Fall to SCLK Rise Hold Time

ns80t

CL

SCLK Pulse Width Low

ns80t

CH

SCLK Pulse Width High

MHz6.25f

CLK

Operating Frequency

ns0t

DH

A_, EN to LE Rise Hold Time

ns80t

L

LE Low Pulse Width

ns80t

RS

RS Low Pulse Width

SERIAL PERIPHERAL INTER-

C, EFigure 6 ns80t

RS

RS Low Pulse Width

C, ECL= 50pF, Figure 7 ns150t

DO

SCLK Rise to DOUT Valid

SERIAL-INTERFACE TIMING

PARALLEL-INTERFACE TIMING

SWITCH DYNAMIC CHARACTERISTICS

V+ = 5.5V

MAX4588

Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)

(V+ = VL= +4.5V to +5.5V, V- = -4.5V to -5.5V, V

INH

= +2.4V, V

INL

= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical val-

ues are at T

A

= +25°C, V+ = VL= +5V, V- = -5V.) (Note 2)

T

A

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

2.7 V+V

L

V

±2.7 ±6V+, V-

Power-Supply Range

POWER SUPPLY

+25°C

C, E

+25°C

V+ = 5.5V, V- = -5.5V

V+ = 5.5V, V- = -5.5V

C, E
C, EVL= 5.5V, all V

IN_

= 0 or V

L

µA

-1 0.0001 1

I-V - Supply Current

-10 10

µA

-1 0.0001 1

I+V+ Supply Current

-10 10
µA-10 2 10I

L

VLSupply Current

ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = VL= +4.5V to +5.5V, V- = 0, V

INH

= +2.4V, V

INL

= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

A

= +25°C, V+ = VL= +5V.) (Note 2)

+25°C

V+ = 5V, V

NO_

= 3V, I

COM_

= 4mA

C, E

+25°C

C, E

C, E

+25°C

C, E

+25°C

T

A

+25°C

V+ = 5.5V; V

COM_

= 4.5V, 1V;

V

NO_

= 1V, 4.5V

V

NO_

= 2V, 3V, 4V

V+ = 5V, V

NO_

= 3V, I

COM_

= 4mA

C, E

V+ = 5V, I

COM_

= 4mA,

+25°C

CONDITIONS

V+ = 5.5V; V

COM_

= 4.5V, 1V;

V

NO_

= 4.5V, 1V, or floating

C, E

V+ = 5.5V; V

COM_

= 4.5V, 1V;

V

NO_

= 1V, 4.5V

C, E

C, E
C, E

VIN= 0 or V

L

nA

-2 0.005 2

I

COM_(ON)

COM_ On Leakage Current
(Notes 6, 9)

-20 20

nA

-2 0.005 2

I

COM(OFF)

COM_ Off Leakage Current
(Notes 6, 9)

LOGIC OUTPUT (SERIAL

µA-1 1I

IN

Input Current

V0.2Input Threshold Hysteresis

-20 20

LOGIC INPUTS (Pins 11 through

V2.4 1.7V

INH

Ω

80 120

R

ON

On-Resistance

V0V+

V

COM_

,

V

NO_

ANALOG SWITCH

Analog Signal Range (Note 3)

Input Logic Threshold High

V1.5 0.8V

INL

-10 10

nA

-1 0.005 1

I

NO_(OFF)

NO_ Off Leakage Current
(Notes 6, 9)

12

150

Ω

18

∆R

ON

On-Resistance Match Between
Channels (Note 4)

10

Ω

410

R

FLAT(ON)

On-Resistance Flatness
(Note 5)

UNITSMIN TYP MAXSYMBOLPARAMETER

Input Logic Threshold Low

C, E

C, E

I

SOURCE

= -1mA

I

SINK

= 3.2mA

VVL- 1V

OH

V0.4V

OL

DOUT Logic Low Output
DOUT Logic High Output

POWER SUPPLY

ANALOG SWITCH

LOGIC INPUTS (4/8, RS, LE/CS, A2/SCLK, A1/DIN, A0/DOUT, EN, SER/PAR)

LOGIC OUTPUT (SERIAL INTERFACE)

V+ = 5V, I

COM_

= 4mA,

V

NO_

= 2V, 3V, 4V

MAX4588

Low-Voltage, High-Isolation,

Dual 4-Channel RF/Video Multiplexer

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)

(V+ = VL= +4.5V to +5.5V, V- = 0, V

INH

= +2.4V, V

INL

= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

A

= +25°C, V+ = VL= +5V.) (Note 2)

T

A

CONDITIONS

4-channel mode
8-channel mode
4-channel mode
8-channel mode

UNITSMIN TYP MAXSYMBOLPARAMETER

+25°C

+25°C

C, E

+25°C

C, E

+25°C

C, E

V

NO_

= 1V

RMS

, f = 10MHz,

all channels off, Figure 5

CL= 1.0nF, V

NO_

= 2.5V, RS= 0,

Figure 3

V

NO_

= 3V, V+ = 5.5V, Figure 2

V

NO_

= 3V, V+ = 4.5V, Figure 1

V

NO_

= 3V, V+ = 4.5V, Figure 1

+25°C

+25°C

C, E

C, E

Figure 5

C, E

V

NO_

= 1V

RMS

, f = 10MHz, Figure 5

+25°C

C, E

Figure 6

Figure 6

Figure 6

Figure 5

Figure 6

75

MHz

100

BW

dB-70V

CT

Channel-to-Channel Crosstalk

-3dB Bandwidth

ns80t

RS

RS Low Pulse Width

ns80t

L

LE Low Pulse Width

ns0t

DH

A_, EN to LE Rise Hold Time

MHz

10

BW-0.1dB Bandwidth

7

SWITCH DYNAMIC CHARAC-

PARALLEL MODE INPUT TIM-

ns80t

DS

dB-65V

ISO

Off-Isolation

pC5QCharge Injection

ns10 200t

BBM

Break-Before-Make Time Delay
(Note 3)

ns

550 800

t

ON

Turn-On Time

900

ns

150 300

t

OFF

Turn-Off Time

350

A_, EN to LE Rise Setup Time

C, E

C, E

C, E

C, E
C, E
C, E
C, E

Figure 7

C, E

Figure 7

Figure 7

Figure 7
Figure 7
Figure 7
Figure 7

C, E

CL= 50pF, Figure 7

Figure 7

ns150t

DO

SCLK Rise to DOUT Valid

ns80t

CSS1

CS

Rise to SCLK Rise Setup

Time

SERIAL PERIPHERAL INTER-

ns0t

CSH1

CS

Rise to SCLK Rise Hold Time

ns50t

CSS0

CS Fall to SCLK Rise Setup Time

ns0t

DH

DIN to SCLK Rise Hold Time

MHz6.25f

CLK

Operating Frequency

ns80t

CH

SCLK Pulse Width High

ns80t

CL

SCLK Pulse Width Low

ns60t

DS

DIN to SCLK Rise Setup Time

C, EFigure 6 ns80t

RS

RS Low Pulse Width

C, EFigure 7 ns80t

CSS1

CS

Fall to SCLK Rise Hold Time

SWITCH DYNAMIC CHARACTERISTICS

PARALLEL-INTERFACE TIMING

SERIAL-INTERFACE TIMING

MAX4588

Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer

6 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)

(V+ = VL= +4.5V to +5.5V, V- = 0, V

INH

= +2.4V, V

INL

= +0.8V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

A

= +25°C, V+ = VL= +5V.) (Note 2)

T

A

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

C, E

C, E

+25°C

VL= 5.5V, all V

IN_

= 0 or V

L

V+ = 5.5V, VIN= 0 or V

L

V+ ≤ 6.5V
V+ > 6.5V

µA-10 2 10I

L

VLSupply Current

-10 10

µA

-1 1

I+V+ Supply Current

POWER SUPPLY

V

2.7 12V+

Power-Supply Range 2.7 V+

V

L

2.7 6.5

ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = VL= +2.7V to +3.6V, V- = 0, V

INH

= +2V, V

INL

= +0.5V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA=

+25°C, V+ = V

L

= +3.0V.)

+25°C

V+ = 2.7V, V

NO_

= 1V,

I

COM_

= 1mA

+25°C

C, E

C, E

C, E
C, E

V

NO_

= 1.5V, V+ = 2.7V, Figure 1

T

A

C, E

V

IN_

= 0 or V

L

+25°C

C, E

CONDITIONS

C, E

V

NO_

= 1.5V, V+ = 2.7V, Figure 1

C, E

+25°C

C, E

Figure 6

Figure 6

V

NO_

= 1.5V, V+ = 3.6V, Figure 2

Figure 6

500

ns

250 400

t

OFF

200

Turn-Off Time

SERIAL PERIPHERAL INTER-

ns200t

L

LE Low Pulse Width

ns0t

DH

A_, EN to LE Rise Hold Time

Break-Before-Make Time Delay
(Note 3)

ns10 350t

BBM

Ω

240 350

R

ON

On-Resistance

V0V+

V

COM_

,

V

NO_

ANALOG SWITCH
Analog Signal Range

PARALLEL MODE INPUT TIM-

ns200t

DS

ns

700 1000

t

ON

Turn-On Time

SWITCH DYNAMIC CHARAC-

µA-1 1I

IN

Input Current

450

LOGIC INPUT (Pins 11 through

V2.0V

INH

Input Logic Threshold High

V0.5V

INL

Input Logic Threshold Low

UNITSMIN TYP MAXSYMBOLPARAMETER

A_, EN to LE Rise Setup Time

C, E

C, E

C, E

Figure 7

Figure 7

Figure 7

C, E
C, E

Figure 7
Figure 7

ns200t

CL

SCLK Pulse Width Low

ns200t

CH

MHz2.1f

CLK

Operating Frequency
SCLK Pulse Width High

ns100t

DS

DIN to SCLK Rise Setup Time

ns0t

DH

DIN to SCLK Rise Hold Time

POWER SUPPLY

C, EFigure 6 ns200t

RS

RS Low Pulse Width

C, EFigure 6 ns200t

RS

RS Low Pulse Width

ANALOG SWITCH

LOGIC INPUTS (4/8, RS, LE/CS, A2/SCLK, A1/DIN, A0/DOUT, EN, SER/PAR)

SWITCH DYNAMIC CHARACTERISTICS

PARALLEL-INTERFACE TIMING

SERIAL-INTERFACE TIMING

MAX4588

Low-Voltage, High-Isolation,

Dual 4-Channel RF/Video Multiplexer

_______________________________________________________________________________________ 7

ELECTRICAL CHARACTERISTICS—Single +3V Supply (continued)

(V+ = VL= +2.7V to +3.6V, V- = 0, V

INH

= +2V, V

INL

= +0.5V, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA=

+25°C, V+ = V

L

= +3.0V.)

T

A

CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER

C, E

C, E

C, E

C, E
C, E

CL= 50pF, Figure 7

C, E

Figure 7

Figure 7

Figure 7

+25°C

Figure 7

V+ = 3.6V, VIN= 0 or V

L

C, EVL= 3.6V, all VIN= 0 or V

L

-10 10

µA

-1 1

I+

POWER SUPPLY
V+ Supply Current

µA-10 1 10I

L

VLSupply Current

ns250t

DO

SCLK Rise to DOUT Valid

ns200t

CSS1

CS

Fall to SCLK Rise Hold Time

ns200t

CSS1

CS

Rise to SCLK Rise Setup

Time

ns100t

CSS0

CS Fall to SCLK Rise Setup Time

ns0t

CSH1

CS

Rise to SCLK Rise Hold Time

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: ∆R

ON

= ∆R

ON(MAX)

- ∆R

ON(MIN)

.

Note 5: 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 6: Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at T

A

= +25°C.

Note 7: Off isolation = 20log

10[VCOM_

/ (V

NC_

or V

NO_

)], V

COM_

= output, V

NC_

or V

NO_

= input to off switch.

Note 8: Between any two switches.
Note 9: Leakage testing for single-supply operation is guaranteed by testing with dual supplies.

POWER SUPPLY

MAX4588

Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer

8 _______________________________________________________________________________________

Typical Operating Characteristics

(V+ = VL= +5V, V- = -5V, TA= +25°C, unless otherwise noted.)

0

30
20
10

40

50

60

70

80

90

100

-6 -2-4 0246

ON-RESISTANCE vs. V

COM

(DUAL SUPPLIES)

MAX4588-01

V

COM

(V)

ON-RESISTANCE (Ω)

±2.5V

±3V

±4V
±5V

±6V

0

50

150

100

200

250

0624

810

12

ON-RESISTANCE vs. V

COM

(SINGLE SUPPLY)

MAX4588-02

V

COM

(V)

ON-RESISTANCE (Ω)

V+ = +2.5V

V- = 0

V+ = +3.6V

V+ = +3.0V

V+ = +5V

V+ = +9V

V+ = +12V

20

30
25

40
35

50
45

55

65
60

70

-5 -3 -2 -1-4 012 435

ON-RESISTANCE vs. V

COM

AND TEMPERATURE (DUAL SUPPLIES)

MAX4588-03

V

COM

(V)

ON-RESISTANCE (Ω)

TA = +85°C

TA = +50°C
TA = +25°C

TA = 0°C
TA = -40°C

40

60
50

80
70

100

90

110

130
120

140

0 1.0 1.5 2.00.5 2.5 3.0 3.5 4.54.0 5.0

ON-RESISTANCE vs. V

COM

AND TEMPERATURE (SINGLE SUPPLY)

MAX4588-04

V

COM

(V)

ON-RESISTANCE (Ω)

TA = +85°C

V- = 0

TA = +50°C

TA = +25°C

TA = 0°C

TA = -40°C

0.1p

1p

10p

100p

1n

10n

-40 40020-20 60 80 100 120

ON/OFF-LEAKAGE CURRENT

vs. TEMPERATURE

MAX4588-05

TEMPERATURE (°C)

LEAKAGE CURRENT (A)

ON-LEAKAGE

OFF-LEAKAGE

0

10

5

20

15

30

25

35

-5 -1-3 1 3-4 0-2 2 4 5

CHARGE INJECTION vs. V

COM

MAX4588-06

V

COM

(V)

CHARGE INJECTION (pC)

DUAL SUPPLIES

SINGLE SUPPLY

MAX4588

Low-Voltage, High-Isolation,

Dual 4-Channel RF/Video Multiplexer

_______________________________________________________________________________________

9

1p

100p

10p

10n

1n

1µ

100n

10µ

-40 0 20-20 40 60 80 100 120

SUPPLY CURRENT vs. TEMPERATURE

MAX4588-09

TEMPERATURE (°C)

SUPPLY CURRENT (A)

I

L

I+

I-

-90

-60

-70

-80

-50

-40

-30

-20

-10

0

10

100k 1M 10M 100M 1G

INSERTION LOSS, OFF-ISOLATION,

AND CROSSTALK vs. FREQUENCY

(DUAL SUPPLIES)

MAX4588-10

FREQUENCY (Hz)

AMPLITUDE (dB)

ON LOSS

RS = 75Ω
R

L

= 600Ω

CROSSTALK

OFF-ISOLATION

-90

-60

-70

-80

-50

-40

-30

-20

-10

0

10

100k 1M 10M 100M 1G

INSERTION LOSS, OFF-ISOLATION,

AND CROSSTALK vs. FREQUENCY

(SINGLE SUPPLY)

MAX4588-11

FREQUENCY (Hz)

AMPLITUDE (dB)

INSERTION LOSS

OFF-ISOLATION

CROSSTALK

RS = 75Ω
R

L

= 600Ω

Typical Operating Characteristics (continued)

(V+ = VL= +5V, V- = -5V, TA= +25°C, unless otherwise noted.)

0

200

100

400

300

500

600

2.5 4.0 4.53.0 3.5 5.0 5.5 6.0

ON/OFF TIME vs. SUPPLY VOLTAGE

MAX4588-07

SUPPLY VOLTAGE (±V)

t

ON,

t

OFF

(ns)

t

OFF

t

ON

0

100

300

200

400

500

-40-30-20-100 1020304050607080

ON/OFF TIME vs. TEMPERATURE

MAX4588-08

TEMPERATURE (°C)

t

ON,

t

OFF

(ns)

t

OFF

t

ON

MAX4588

Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer

10 ______________________________________________________________________________________

Pin Description

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

.

RS

12

In parallel mode, this pin is the transparent Latch Enable. In the serial mode, this pin is the Chip-Select
Input. See

Truth Tables.

LE/CS

13

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

.

A2/SCLK14

Address Input in the parallel mode. Serial Data Input in serial mode. In serial mode, data is loaded on
SCLK’s rising edge.

A1/DIN15

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

.

A0/DOUT16

Normally Open Analog Input Terminal. See

Truth Tables.

NO26

Normally Open Analog Input Terminal. See

Truth Tables.

NO38

Normally Open Analog Input Terminal. See

Truth Tables.

NO410

Multiplexer Configuration Control. Connect to VLto select dual 2-channel mode. Connect to GND for single
4-channel multiplexer operation. See

Truth Tables

.

4/8

11

Normally Open Analog Input Terminal. See

Truth Tables.

NO14

Analog Positive Supply Voltage InputV+3

PIN

Analog Switch Common Terminal. See

Truth Table.

COM12

Ground. Connect all ground pins to a ground plane. See

Grounding

section.GND

1, 5, 7,

9, 21,

23, 25

FUNCTIONNAME

Normally Open Analog Input Terminal. See

Truth Tables

.NO526
Analog Negative Supply Voltage Input. Connect to ground plane for single-supply operation.V-27
Analog Switch Common Terminal. See

Truth Tables

.COM228

Logic Supply Input. Powers the DOUT driver and other digital circuitry. VLsets both the digital input and
output logic levels.

V

L

19

Normally Open Analog Input Terminal. See

Truth Tables

.NO820
Normally Open Analog Input Terminal. See

Truth Tables

.NO722
Normally Open Analog Input Terminal. See

Truth Tables

.NO624

Interface Select Input. Drive low for parallel data interface operation. Drive high for serial data interface
operation and to enable the DOUT driver.

SER/PAR

18

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.

EN17

MAX4588

Low-Voltage, High-Isolation,

Dual 4-Channel RF/Video Multiplexer

______________________________________________________________________________________ 11

t

OFF

t

ON

EN

V

OUT

V

OUT

EN

LE/CS NO_

V+

V+

COM_

V

NO_

MAX4588

300Ω

30pF

90%90%

50%

50%

GND

V-

V-

∆V

OUT

EN

V

OUT

∆V

OUT

IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER

ERROR Q WHEN THE CHANNEL TURNS OFF.

V+

V+

V-

V-

V

OUT

EN

NO_

COM_

MAX4588

Q = ∆V

OUT

· C

L

1nF

GND

C

L

10µF

V

NO_LE/CS

SER/PAR

Figure 1. Turn-On/Turn-Off Time

Figure 2. Break-Before-Make Time Delay

Figure 3. Charge Injection

LE/CS

SER/PAR

A0

V+

V+

MAX4588

V-

NO_
NO_

COM_

GND

V

300Ω

NO_

V

OUT

30pF

V

GND

OUT

A0

90%

t

BBM

V-

MAX4588

Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer

12 ______________________________________________________________________________________

V+

V+

V-

V-

1MHz

CAPACITANCE

ANALYZER

NO_

FLOATING

COM_

MAX4588

GND

FLOATING

1MHz

CAPACITANCE

ANALYZER

NO_

COM_

MAX4588

GND

Figure 4. NO_, COM_ Capacitance

Figure 5. Off-Isolation, Crosstalk, and Bandwidth

Figure 6. Parallel Timing Diagram

V+

V+

NO_

MAX4588

NO_

COM_

V­V-

ALL SIGNALS NORMALIZED TO V

COM

= 0dB.

LE

A0, A1, A2, EN

49.9Ω

24.9Ω

560Ω

56Ω

50Ω

50Ω

50Ω

t

L

t

t

DS

DH

t

RS

MAX4588

+

-

MEASURE
NODE

MEASURE
NODE

RS

AND tF <10ns. TIMING IS MEASURED FROM 50% OF DIGITAL SIGNAL.

R

NOTE: ALL INPUT SIGNALS ARE SPECIFIED WITH t

Detailed Description

Logic-Level Translators

The MAX4588 is constructed of high-frequency “T”
switches, as shown in Figure 8. The logic-level inputs
are translated by amplifier A1 into a V+ to V- logic sig­nal that drives amplifier A2. Amplifier A2 drives the
gates of N-channel MOSFETs N1 and N2 from V+ to V-,
turning them fully on or off. The same signal drives
inverter A3 (which drives the P-channel MOSFETs P1
and P2, turning them fully on or off) from V+ to V-, and
turns the N-channel MOSFET N3 on and off. The logic­level threshold is determined by VLand GND.

Switch On Condition

When the switch is on, MOSFETs N1, N2, P1, and P2
are on and MOSFET N3 is off (Figure 8). The signal
path is COM_ to NO_, and because both N-channel
and P-channel MOSFETs act as pure resistances, it is
symmetrical (i.e., signals may pass in either direction).
The off MOSFET, N3, has no DC conduction, but has a
small amount of capacitance to GND. The four on
MOSFETs also have capacitance to ground that,
together with the series resistance, forms a lowpass fil­ter. All of these capacitances are distributed evenly
along the series resistance, so they act as a transmis­sion line rather than a simple R-C filter. The MAX4588’s
construction allows an exceptional 180MHz bandwidth
when the switches are on.

Typical attenuation in 75Ω systems is 2.5dB and is rea­sonably flat up to 50MHz. Higher-impedance circuits
show even lower attenuation (and vice versa), but
slightly lower bandwidth due to the increased effect of
the internal and external capacitance and the switch’s
internal resistance.

MAX4588

Low-Voltage, High-Isolation,

Dual 4-Channel RF/Video Multiplexer

______________________________________________________________________________________ 13

A1 A2 A3

P1

N3

N1

V-

GND

INPUT

V

CC

V+

V+

V+

COM_ NO_

N2

P2

NORMALLY OPEN SWITCH CONSTRUCTION

ESD DIODES

ON GND, NO_,

AND COM_

Figure 7. Serial Timing Diagram

Figure 8. T-Switch Construction

CS

t

CSS

SCLK

t

DS

DIN

DOUT

NOTE: ALL INPUT SIGNALS ARE SPECIFIED WITH t
TIMING IS MEASURED FROM 50% OF DIGITAL SIGNAL.

t

CH

t

DH

A0

t

DO

t

CL

A1

AND tF < 10ns.

R

A2 DISABLE

t

CSH

MAX4588

MAX4588

The MAX4588 is optimized for ±5V operation. Using
lower supply voltages or a single supply increases
switching time, on-resistance (and therefore on-state
attenuation), and nonlinearity.

Switch Off Condition

When the switch is off, MOSFETs N1, N2, P1, and P2
are off and MOSFET N3 is on (Figure 8). The signal
path is through the parasitic off-capacitances of the
series MOSFETs, but it is shunted to ground by N3.
This forms a highpass filter whose exact characteristics
are dependent on the source and load impedances. In
75Ω systems, and below 10MHz, the attenuation can
exceed 80dB. This value decreases with increasing fre­quency and increasing circuit impedances. External
capacitance and board layout have a major role in
determining overall performance.

Applications Information

Power-Supply Considerations

Overview

The MAX4588 construction is typical of many CMOS
analog switches. It has four supply pins: V+, V-, VL, and
GND. V+ and V- 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 pin and both
V+ and V-. If the voltage on any pin exceeds V+ or V-,
one of these diodes will conduct. During normal opera­tion these reverse-biased ESD diodes leak, forming the
only current drawn from V- and V+.

Virtually all the analog leakage current is through the
ESD diodes. Although the ESD diodes on a given sig­nal pin are identical, and therefore fairly well balanced,
they are reverse-biased differently. Each is biased by
either V+ or V- and the analog signal. This means their
leakages vary as the signal varies. The difference in the
two diode leakages from the signal path to the V+ and
V- pins constitutes the analog signal-path leakage cur­rent. All analog leakage current flows to the supply ter­minals, not to the other switch terminal. This explains
how both sides of a given switch can show leakage
currents of either the same or opposite polarity.

There is no connection between the analog signal
paths and GND. The analog signal paths consist of an
N-channel and P-channel MOSFET with their sources
and drains paralleled and their gates driven out of
phase with V+ and V- by the logic-level translators.

VLand GND power the internal logic and logic-level
translators, and set the input logic thresholds. The
logic-level translators convert the logic levels to
switched V+ and V- signals to drive the gates of the

analog switches. This drive signal is the only connec­tion between the logic supplies and the analog sup­plies.

Bipolar-Supply Operation

The MAX4588 operates with bipolar supplies between
±2.7V and ±6V. The V+ and V- supplies are not required
to be symmetrical, but their sum cannot exceed the
absolute maximum rating of 13.0V. Do not connect the

MAX4588 V+ pin to +3V and connect the logic-level
input pins to +5V logic-level signals. This level
exceeds the absolute maximum ratings, and may
cause damage to the part and/or external circuits.

CAUTION: The absolute maximum V+ to V- differen­tial voltage is 13.0V. Typical “±6-Volt” or “12-Volt”
supplies with ±10% tolerances can be as high as

13.2V. This voltage can damage the MAX4588. Even
±5% tolerance supplies may have overshoot or
noise spikes that exceed 13.0V.

Single-Supply Operation

The MAX4588 operates from a single supply between
+2.7V and +12V when V- is connected to GND.
Observe all of the precautions listed in the

Bipolar-

Supply Operation

section. Note, however, that these
parts are optimized for ±5V operation, and AC and DC
characteristics are degraded significantly when operat­ing at less than ±5V. As the overall supply voltage (V+
to V-) is reduced, switching speed, on-resistance, off­isolation, and distortion are degraded (see

Typical

Operating Characteristics

).

Single-supply operation also limits signal levels and
interferes with grounded signals. When V- = 0, AC sig­nals are limited to -0.3V. Voltages below -0.3V can be
clipped by the internal ESD-protection diodes, and the
parts can be damaged if excessive current flows.

Power Off

When power to the MAX4588 is off (i.e., V+ = 0 and V­= 0), the

Absolute Maximum Ratings

still apply. This
means that none of the MAX4588 pins can exceed
±0.3V. Voltages beyond ±0.3V cause the internal ESD­protection diodes to conduct, with potentially cata­strophic consequences.

Power-Supply Sequencing

When applying power to the MAX4588, follow this
sequence: V+, V- (if biased to potential other than
ground), VL, then logic inputs. Apply signals on the
analog NO_ and COM_ pins any time after V+, V-, and
GND voltages are set. Turning on all pins simultaneous­ly is acceptable only if the circuit design guarantees
concurrent power-up.

Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer

14 ______________________________________________________________________________________

The power-down sequence is the opposite of the
power-up sequence. That is, the VLand logic inputs
must go to zero potential before (or simultaneously
with) the V- then V+ supplies. The

Absolute Maximum

Ratings

must always be observed in order to ensure

proper operation.

Grounding

DC Ground Considerations

Satisfactory high-frequency operation requires that
careful consideration be given to grounding. For most

applications, a ground plane is strongly recom­mended, and all GND pins must connect to it with
solid copper. While the V+ and V- power-supply pins

are common to all switches in a given package, each
input is separated with ground pins that are not inter­nally connected to each other. This contributes to the
overall high-frequency performance by reducing chan­nel-to-channel crosstalk. All the GND pins have ESD
diodes to V+ and V-.

In systems that have separate digital and analog (sig­nal) grounds, connect all GND pins to analog signal
ground. Preserving a good signal ground is much more
important than preserving a digital ground. Ground cur­rent is only a few nanoamperes.

The digital inputs have voltage thresholds determined by
VLand GND (V- does not influence the logic-level thresh­old). With +5V applied to VL, the threshold is about 1.6V,
ensuring compatibility with TTL- and CMOS-logic drivers.

AC Ground and Bypassing

A ground plane is mandatory for satisfactory high­frequency operation. Prototyping using hand wiring or

wire-wrap boards is not recommended. Connect all
GND pins to the ground plane with solid copper. (The
GND pins extend the high-frequency ground through
the package wire-frame, into the silicon itself, thus
improving isolation.) Make the ground plane solid metal
underneath the device, without interruptions. There
should be no traces under the device itself. For DIP
packages, this applies to both sides of a two-sided
board. Failure to observe this has a minimal effect on
the “on” characteristics of the switch at high frequen­cies, but will degrade the off-isolation and crosstalk.

When using the MAX4588’s SO package on PC boards
with a buried ground plane, connect each GND pin to the
ground plane with a separate via. Do not share this via
with any other ground path. Providing a ground via on
both sides of the SMT land further enhances the off-isola­tion by lowering the parasitic inductance. The DIP pack­age can have the through-holes directly tied to the buried
plane, or thermally relieved as required to meet manufac-

turability requirements. Again, do not use the through­hole pads as the current path for any other components.

Bypass all V+ and V- pins to the ground plane with sur­face-mount 0.01µF capacitors. Locate these capacitors
as close as possible to the pins on the same side of the
board as the device. Do not use feedthroughs or vias
for bypass capacitors. If board layout dictates that the
bypass capacitors are mounted on the opposite side of
the PC board, use short feedthroughs or vias, directly
under the V+ and V- pins. Use multiple vias if possible.
If V- is 0, connect it directly to the ground plane with
solid copper. Keep all traces short.

Signal Routing

Keep all signal leads as short as possible. Separate all
signal leads from each other, and keep them away from
any other traces that could induce interference.
Separating the signal traces with generously sized
ground wires also helps minimize interference. Routing
signals via coaxial cable, terminated as close to the
MAX4588 as possible, provides the highest isolation.

Board Layout

IC sockets degrade high-frequency performance and
should not be used if signal bandwidth exceeds 5MHz.
Surface-mount parts, having shorter internal lead
frames, provide the best high-frequency performance.
Keep all bypass capacitors close to the device, and
separate all signal leads with ground planes. Such
grounds tend to be wedge-shaped as they get closer to
the device. Use vias to connect the ground planes on
each side of the board, and place the vias in the apex of
the wedge-shaped grounds that separate signal leads.
Logic-level signal lead placement is not critical.

Impedance Matching

The MAX4588 is intended for use in 75Ω systems,
where the inputs are terminated external to the IC and
the COM terminals see an impedance of 600Ω or high­er. The MAX4588 can operate in 50Ω and 75Ω systems
with terminations through the IC. However, variations in
RONand RONflatness cause nonlinearities.

Crosstalk and Off-Isolation

The graphs shown in

Typical Operating Characteristics

for crosstalk and off-isolation are taken on adjacent
channels. The adjacent channel is the worst-case con­dition. For example, NO1 has the worst off-isolation to
COM1 due to their proximity. Furthermore, NO1 has the
most crosstalk to NO2, and the least crosstalk to NO4.
Choosing channels wisely necessitates separating the
most sensitive channels from the most offensive.
Conversely, the above information also applies to the
NO5–NO8 inputs to the COM2 pin.

MAX4588

Low-Voltage, High-Isolation,

Dual 4-Channel RF/Video Multiplexer

______________________________________________________________________________________ 15

MAX4588

Power-On Reset (POR)

The MAX4588 has internal circuitry to guarantee a
known state on power-up. In the default state, A0 = A1
= A2 = 0, disable = 1, and all switches are off. This
state is equivalent to asserting RS during normal opera­tion.

Serial Operation

The serial mode is activated by driving the SER/PAR
input pin to a logic high. The data is then entered using a
normal SPI/MICROWIRE write operation. Refer to Figure
7 for a detailed diagram of the serial-interface logic.
There are four flip-flops in the shift register, with the out­put of the fourth shift register being output on the DOUT
pin. Note: DOUT changes on the rising edge of SCLK.

This allows cascading of multiple MAX4588s using only
one chip-select line. For example, one 16-bit write could
load the shift registers of four cascaded MAX4588s. The
data from the shift register is moved to the internal con­trol latches only upon the rising edge of CS, so all four
MAX4588s change state simultaneously.

Parallel Operation

The parallel mode is activated by driving SER/PAR to a
logic low. The MAX4588 is programmed by a latched
parallel bus scheme. Refer to Figure 6 for a detailed
diagram of the parallel-interface logic. Note that 4/8 is
not latched. It is best to hard-wire 4/8 to a known state
for the desired mode of operation, or to use a dedicat­ed microcontroller port pin.

Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer

16 ______________________________________________________________________________________

Parallel Operation

Connects NO5 to COM210
Connects NO6 to COM210
Connects NO7 to COM210
Connects NO8 to COM210
Connect NO1 to COM1 and NO5 to COM2x0

Connects NO1 to COM100
Connects NO2 to COM100
Connects NO3 to COM100
Connects NO4 to COM100

All switches off.x0

Serial Mode. Refer to

Serial Operation

Truth Table

.

x1

SER/PAR

All switches off, latches are cleared.xx

Maintain previous state.x0

SWITCH STATESA2

0
0
1
1
0

0
0
1
1

x

x

x

x

A1

0
1
0
1
0

0
1
0
1

x

x

x

x

A0

1
1
1
1
1

1
1
1
1

0

x

x

x

EN

0
0
0
0
0

0
0
0
0

0

x

x

1

LE

1
1
1
1
1

1
1
1
1

1

1

0

1

RS

0
0
0
0
1

0
0
0
0

x

x

x

x

4/

88

Connect NO2 to COM1 and NO6 to COM2x0
Connect NO3 to COM1 and NO7 to COM2x0
Connect NO4 to COM1 and NO8 to COM2x0

0
1
1

1
0
1

1
1
1

0
0
0

1
1
1

1
1
1

x = Don’t Care
Note: 4/8 is not latched when LE is high. When LE is low, all latches are transparent. A2, A1, A0, and EN are latched.

Connect COM1 to COM2 externally for 1-of-8 single-ended operation.

Truth Tables

MAX4588

Low-Voltage, High-Isolation,

Dual 4-Channel RF/Video Multiplexer

______________________________________________________________________________________ 17

Serial Operation

Contents of shift register transferred to control
latches.

1 x x 1 1 *

Input shift register loads one bit from DIN. DOUT
updates on SCLK’s rising edge.

01

Input shift register loads one bit from DIN. DOUT
updates on SCLK’s rising edge.

01

Chip unselected.11

All switches off.x1

SER/PAR

Parallel Mode. Refer to

Parallel Operation Truth

Table.

x0

All switches off. Latches and shift register are
cleared. This is the power-on reset (POR) state.

x1

ON SWITCHES/STATES

CS

x

x

x

x

SCLK

0

1

x

x

x

x

DIN

1

1

1

0

x

x

EN

1

1

1

1

x

0

RS

*

*

*

*

High-Z

0

DOUT

Control Bit and 4/8 Logic

Connect NO5 to COM210
Connect NO6 to COM210
Connect NO7 to COM210
Connect NO8 to COM210
Connect NO1 to COM1 and NO5 to COM2x0

Connect NO1 to COM100
Connect NO2 to COM100
Connect NO3 to COM100
Connect NO4 to COM100

All switches off.x1

DISABLE

BIT

ON SWITCHES/STATES

A2

BIT

0
0
1
1
0

0
0
1
1

x

A1

BIT

0
1
0
1
0

0
1
0
1

x

A0

BIT

0
0
0
0
1

0
0
0
0

x

4/

88

PIN

Connect NO2 to COM1 and NO6 to COM2x0
Connect NO3 to COM2 and NO7 to COM2x0
Connect NO4 to COM2 and NO8 to COM2x0

0
1
1

1
0
1

1
1
1

x = Don’t Care

*

DOUT is delayed by 4 clock cycles from DIN.

x = Don’t Care
Note: DISABLE, A2, A1, and A0 are the 4 bits latched into the MAX4588 with a MICROWIRE/SPI write. A0 is the LSB (first bit in

time). DISABLE is the MSB (last bit in time).

Truth Tables (continued)

MAX4588

Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer

18 ______________________________________________________________________________________

TRANSISTOR COUNT: 1033

____________________Chip Information

Package Information

28LNPDIP.EPS

MAX4588

Low-Voltage, High-Isolation,

Dual 4-Channel RF/Video Multiplexer

______________________________________________________________________________________ 19

Package Information (continued)

SOICW.EPS

MAX4588

Low-Voltage, High-Isolation,
Dual 4-Channel RF/Video Multiplexer

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.

20

____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

© 1999 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.

Package Information (continued)

SSOP.EPS