Datasheet > MAX1490EB

MAX1490EB

更新时间： 2023-12-20 18:45:03

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
19页	1664K
描述
±15kV ESD保护、隔离型、RS-485/RS-422数据接口

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数据手册

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MAX1490EB 数据手册

19-1940; Rev 0; 4/01

1ꢀ5k EꢁDꢂ-rotected, Isolated Rꢁꢂ48ꢀ/Rꢁꢂ422

Data Interfaces

_________________General Description

____________________________Features

ꢀ Isolated Data Interface, Guaranteed to 1260V

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

15ꢀk electrostatic discharge ꢁESꢂD shocꢀs, ꢃithout

latchup. Transceivers, optocouplers, and a transformer

provide a complete interface in a standard ꢂIP pacꢀage.

A single +5k supply on the logic side poꢃers both sides

of the interface.

RMS

(1min)

ꢀ

15kV ESD Protection on I/O Pins

ꢀ Slew-Rate Limited for Errorless Data

Transmission (MAX1480EC/MAX1490EB)

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

Interface (MAX1480EA/MAX1490EA)

ꢀ Full-Duplex Data Communication

(MAX1490EA/MAX1490EB)

The MAX1480EC/MAX1490EB feature reduced-sleꢃ-rate

drivers that minimize EMI and reduce reflections caused

by improperly terminated cables, alloꢃing error-free data

transmission at data rates up to 160ꢀbps. The

MAX1480EA/MAX1490EA driver sleꢃ rate is not limited,

alloꢃing transmission rates up to 2.5Mbps. The

MAX1480EA/MAX1480EC are designed for half-duplex

communication, ꢃhile the MAX1490EA/MAX1490EB fea-

ture full-duplex communication.

ꢀ Single +5V Supply

ꢀ Current Limiting and Thermal Shutdown for

Driver Overload Protection

ꢀ Standard 0.6in DIP Packages

28-Pin DIP (MAX1480EA/MAX1480EC)

24-Pin DIP (MAX1490EA/MAX1490EB)

_______________Ordering Information

ꢂrivers are short-circuit current limited and protected

against excessive poꢃer dissipation by thermal shut-

doꢃn circuitry that places the driver outputs into a high-

impedance state. The receiver input has a fail-safe

feature that guarantees a ꢀnoꢃn output ꢁRO loꢃ for the

MAX1480EA/MAX1480EC, RO high for the MAX1490EA/

MAX1490EBD if the input is open circuit.

†

PART

TEMP. RANGE

PIN-PACKAGE

MAX1480EACPI

MAX1480EAEPI

0°C to +70°C

28 Wide Plastic ꢂIP*

-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 C parts is

up to 250kbps.

The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB

*See Reliability section at end of data sheet.

ꢃithstand 1260k

ꢁ1minD or 1520k

ꢁ1sD. Their iso-

RMS

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

MAX1480EA/MAX1480EC are available in a 28-pin ꢂIP

pacꢀage, and the MAX1490EA/MAX1490EB are available

in a 24-pin ꢂIP pacꢀage.

-in Configurations

TOP VIEW

CC1

CC2

AC1

MAX1490EA/

MAX1490EB

23 AC2

________________________Applications

Isolated RS-485/RS-422 ꢂata Interface

Transceivers for EMI-Sensitive Applications

Industrial-Control Local Area Netꢃorꢀs

Automatic Test Equipment

ISO V

CC1

ISO RO DRV

GND1

HkAC/Building Control Netꢃorꢀs

Telecom

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.

Selector Guide appears 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...19

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与MAX1490EB相关器件

型号	品牌	获取价格	描述	数据表
MAX1490EBCPG	ROCHESTER	获取价格	LINE TRANSCEIVER, PDIP24, PLASTIC, DIP-24
MAX1490EBCPG	MAXIM	获取价格	15kV ESD-Protected, Isolated RS-485/RS-422
MAX1490EBCPG+	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, PDIP24, PLASTIC, DIP-24
MAX1490EBEPG	MAXIM	获取价格	15kV ESD-Protected, Isolated RS-485/RS-422
MAX1490EBEPG+	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, PDIP24, PLASTIC, DIP-24
MAX1491	MAXIM	获取价格	3.5- and 4.5-Digit, Single-Chip ADCs with LCD Drivers
MAX1491	ADI	获取价格	3位半和4位半、单片ADC，带有LCD驱动器
MAX1491\|MAX1493\|MAX1495	MAXIM	获取价格	3.5- and 4.5-Digit. Single-Chip ADCs with LCD Drivers
MAX14912	MAXIM	获取价格	Low Power and Heat Dissipation
MAX14912	ADI	获取价格	八通道、高速、高边开关/推挽式驱动器

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