Datasheet > MAX1480A_05

MAX1480A_05

更新时间： 2024-11-23 05:00:35

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描述
Complete, Isolated RS-485/RS-422 Data Interface

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数据手册

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MAX1480A_05 数据手册

19-0259; Rev 5; 5/05

Complete, Isolated RS-485/RS-422

Data Interface

_________________General Description

Next-Generation Device Features

ꢀ For Integrated ESD Protection

The MAX1480A/MAX1480B/MAX1480C/MAX1490A/

MAX1490B are complete, electrically isolated, RS-485/

RS-422 data-communications interface solutions in a

hybrid microcircuit. Transceivers, optocouplers, and a

transformer provide a complete interface in a standard

DIP package. A single +5V supply on the logic side pow-

ers both sides of the interface.

MAX1480E/MAX1490E: 15kV ESD-Protected,

Isolated RS-485/RS-422 Data Interfaces

ꢀ For Space-Constrained Applications

MAX3157: High CMRR, RS-485 Transceiver with

50V Isolation

_______________Ordering Information

The MAX1480B/MAX1480C/MAX1490B feature reduced-

slew-rate drivers that minimize EMI and reduce reflec-

tions caused by improperly terminated cables, allowing

error-free data transmission at data rates up to 250kbps.

The MAX1480A/MAX1490A driver slew rate is not limited,

allowing transmission rates up to 2.5Mbps. The

MAX1480A/B/C are designed for half-duplex communi-

cation, while the MAX1490A/B feature full-duplex com-

munication.

†

PART

TEMP RANGE

PIN-PACKAGE

28 Wide Plastic DIP

MAX1480ACPI

MAX1480AEPI

0°C to +70°C

-40°C to +85°C

Ordering Information continued at end of data sheet.

Data rate for “A” parts is up to 2.5Mbps. Data rate for “B” and

“C” parts is up to 250kbps.

†

_____________________Selection Table

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

MAX1480A/B/C, RO high for the MAX1490A/B/C) if the

input is open circuit.

DRIVER

ENABLE

TIME

HALF/

FULL

DUPLEX

DATA

RATE

(MBPS)

SLEW-

RATE

LIMITED

PART

(µS)

MAX1480A

MAX1480B

MAX1480C

MAX1490A

MAX1490B

Half

Full

2.5

0.25

2.5

Yes

0.2

0.5

—

The MAX1480A/MAX1480B/MAX1480C/MAX1490A/

MAX1490B typically withstand 1600V

(1 minute) or

RMS

2000V

(1 second). Their isolated outputs meet all

RMS

0.25

Yes

—

RS-485/RS-422 specifications. The MAX1480A/B/C are

available in a 28-pin DIP package, and the MAX1490A/B

are available in a 24-pin DIP package.

Pin Configurations

________________________Applications

TOP VIEW

Isolated RS-485/RS-422 Data Interface

Transceivers for EMI-Sensitive Applications

Industrial-Control Local Area Networks

Automatic Test Equipment

CC1

AC1

MAX1490A/B

CC2

23 AC2

22 ISO V

CC1

ISO RO DRV

GND1

HVAC/Building Control Networks

CC3

16 ISO COM1

ISO DI DRV

CC4

ISO V

CC2

GND2

13 ISO RO LED

ISOLATION BARRIER

DIP

Pin Configurations continued at end of data sheet.

________________________________________________________________ Maxim Integrated Products

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.

12 3 4 5 6 7...21

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与MAX1480A_05相关器件

型号	品牌	获取价格	描述	数据表
MAX1480ACPI	MAXIM	获取价格	Complete, Isolated RS-485/RS-422 Data Interface
MAX1480AEPI	MAXIM	获取价格	Complete, Isolated RS-485/RS-422 Data Interface
MAX1480B	MAXIM	获取价格	Complete, Isolated RS-485/RS-422 Data Interface
MAX1480B	ADI	获取价格	完备的隔离型、RS-485/RS-422数据接口
MAX1480BCPI	MAXIM	获取价格	Complete, Isolated RS-485/RS-422 Data Interface
MAX1480BCPI+	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, Hybrid, PDIP28, 0.600 INCH, ROHS COMPLIANT, PL
MAX1480BEPI	MAXIM	获取价格	Complete, Isolated RS-485/RS-422 Data Interface
MAX1480BEPI+	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, Hybrid, PDIP28, 0.600 INCH, ROHS COMPLIANT, PL
MAX1480C	MAXIM	获取价格	Complete, Isolated RS-485/RS-422 Data Interface
MAX1480C	ADI	获取价格	完备的隔离型、RS-485/RS-422数据接口

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