MAX1490EAEPG Maxim Integrated Products, MAX1490EAEPG Datasheet

MAX1490EAEPG

Manufacturer Part Number

MAX1490EAEPG

Description

DIP24

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX1480EAEPI.pdf (19 pages)

Specifications of MAX1490EAEPG

Date_code

10+

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Part Number:

MAX1490EAEPG+

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Part Number:

MAX1490EAEPG+

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_________________General Description

The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB

are complete, electrically isolated, RS-485/RS-422 data

communications interface solutions in a hybrid microcir-

cuit. The RS-485/RS-422 I/O pins are protected against

±15kV electrostatic discharge (ESD) shocks, without

latchup. Transceivers, optocouplers, and a transformer

provide a complete interface in a standard DIP package.

A single +5V supply on the logic side powers both sides

of the interface.

The MAX1480EC/MAX1490EB feature reduced-slew-rate

drivers that minimize EMI and reduce reflections caused

by improperly terminated cables, allowing error-free data

transmission at data rates up to 160kbps. The

MAX1480EA/MAX1490EA driver slew rate is not limited,

allowing transmission rates up to 2.5Mbps. The

MAX1480EA/MAX1480EC are designed for half-duplex

communication, while the MAX1490EA/MAX1490EB fea-

ture full-duplex communication.

Drivers are short-circuit current limited and protected

against excessive power dissipation by thermal shut-

down circuitry that places the driver outputs into a high-

impedance state. The receiver input has a fail-safe

feature that guarantees a known output (RO low for the

MAX1480EA/MAX1480EC, RO high for the MAX1490EA/

MAX1490EB) if the input is open circuit.

The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB

withstand 1260V

lated outputs meet all RS-485/RS-422 specifications. The

MAX1480EA/MAX1480EC are available in a 28-pin DIP

package, and the MAX1490EA/MAX1490EB are available

in a 24-pin DIP package.

________________________Applications

19-1940; Rev 0; 4/01

Selector Guide appears at end of data sheet.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

±15kV ESD-Protected, Isolated RS-485/RS-422

Isolated RS-485/RS-422 Data Interface

Transceivers for EMI-Sensitive Applications

Industrial-Control Local Area Networks

Automatic Test Equipment

HVAC/Building Control Networks

Telecom

RMS

________________________________________________________________ Maxim Integrated Products

(1min) or 1520V

RMS

(1s). Their iso-

o Isolated Data Interface, Guaranteed to 1260V

o ±15kV ESD Protection on I/O Pins

o Slew-Rate Limited for Errorless Data

o High-Speed, Isolated, 2.5Mbps RS-485/RS-422

o Full-Duplex Data Communication

o Single +5V Supply

o Current Limiting and Thermal Shutdown for

o Standard 0.6in DIP Packages

_______________Ordering Information

Ordering Information continued at end of data sheet.

†

up to 250kbps.

*See Reliability section at end of data sheet.

____________________________Features

MAX1480EACPI

MAX1480EAEPI

Data rate for A parts is up to 2.5Mbps. Data rate for C parts is

(1min)

Transmission (MAX1480EC/MAX1490EB)

Interface (MAX1480EA/MAX1490EA)

Driver Overload Protection

Pin Configurations continued at end of data sheet.

28-Pin DIP (MAX1480EA/MAX1480EC)

24-Pin DIP (MAX1490EA/MAX1490EB)

TOP VIEW

(MAX1490EA/MAX1490EB)

PART

†

GND1

GND2

CC1

CC2

CC3

CC4

Data Interfaces

TEMP. RANGE

-40°C to +85°C

ISOLATION BARRIER

0°C to +70°C

DIP

Pin Configurations

28 Wide Plastic DIP*

PIN-PACKAGE

AC1

AC2

ISO V

ISO RO DRV

ISO COM1

ISO DI DRV

ISO RO LED

ISO V

CC1

CC2

MAX1490EA/

MAX1490EB

RMS

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