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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 50

Ω 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

60

Ω max, with an on-resistance match across all chan-

nels of 4

Ω max. Additionally, on-resistance is flat

across the specified signal range (2

Ω max). The off-

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.

Applications

RF Switching

Video Signal Routing

High-Speed Data Acquisition

Automatic Test Equipment

Networking

Features

o Low Insertion Loss: < -2.5dB up to 100MHz

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 60

Ω (max) On-Resistance with ±5V Supplies

o 4

Ω (max) On-Resistance Matching with ±5V

Supplies

o 2

Ω (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 Parallel or SPI/QSPI/MICROWIRE-Compatible

Serial Interface

o >±2kV ESD Protection per Method 3015.7

Low-Voltage, High-Isolation,

Dual 2-Channel RF/Video Multiplexer

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Maxim Integrated Products

1

20

19

18

17

16

15

14

13

12

11

1

2

3

4

5

6

7

8

9

10

SER/PAR

COM2

V-

NO3

GND

NO4

DIN

EN

A0/DOUT

A1/SCLK

LE/CS

RS

2/4

NO2

GND

NO1

V+

COM1

GND

SSOP/SO/DIP

TOP VIEW

MAX4589

CONTROL LOGIC

19-1424; Rev 0; 1/99

PART

MAX4589CAP

MAX4589CWP

MAX4589CPP

0°C to +70°C

0°C to +70°C

0°C to +70°C

TEMP. RANGE

PIN-PACKAGE

20 SSOP

20 Wide SO

20 Plastic DIP

Pin Configuration

Ordering Information

MAX4589EAP

-40°C to +85°C

20 SSOP

MAX4589EWP

-40°C to +85°C

20 Wide SO

MAX4589EPP

-40°C to +85°C

20 Plastic 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.