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MAX3084

更新时间： 2024-11-25 22:57:59

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
20页	276K
描述
Fail-Safe, High-Speed 10Mbps, Slew-Rate-Limited RS-485/RS-422 Transceivers

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数据手册

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MAX3084 数据手册

19-1138; Rev 1; 12/97

Fa il-S a fe , Hig h -S p e e d (1 0 Mb p s ),

S le w -Ra t e -Lim it e d RS -4 8 5 /RS -4 2 2 Tra n s c e ive rs

–MAX3089

Ge n e ra l De s c rip t io n

Fe a t u re s

The MAX3080–MAX3089 high-speed transceivers for

RS-485/RS-422 communication contain one driver and

one receiver. These devices feature fail-safe circuitry,

which guarantees a logic-high receiver output when the

receiver inputs are open or shorted. This means that

the receiver output will be a logic high if all transmitters

on a terminated bus are disabled (high impedance).

The MAX3080/MAX3081/MAX3082 feature reduced

slew-rate drivers that minimize EMI and reduce reflec-

tions caused by improperly terminated cables, allowing

e rror-fre e d a ta tra ns mis s ion up to 115kb p s . The

MAX3083/MAX3084/MAX3085 offer higher driver out-

put slew-rate limits, allowing transmit speeds up to

500kbps. The MAX3086/MAX3087/MAX3088’s driver

slew rates are not limited, making transmit speeds up

to 10Mb p s p os s ib le . The MAX3089’s s le w ra te is

selectable between 115kbps, 500kbps, and 10Mbps

b y d riving a s e le c tor p in with a s ing le thre e -s ta te

driver.

♦ True Fail-Safe Receiver While Maintaining

EIA/TIA-485 Compatibility

♦ Enhanced Slew-Rate Limiting Facilitates

Error-Free Data Transmission

(MAX3080–MAX3085/MAX3089)

♦ 1nA Low-Current Shutdown Mode (except

MAX3081/MAX3084/MAX3087)

♦ Pin-Selectable Full/Half-Duplex Operation

(MAX3089)

♦ Phase Controls to Correct for Twisted-Pair

Reversal (MAX3089)

♦ Allow Up to 256 Transceivers on the Bus

Ap p lic a t io n s

RS-422/RS-485 Communications

Level Translators

These transceivers typically draw 375µA of supply

current when unloaded, or when fully loaded with the

drivers disabled.

Transceivers for EMI-Sensitive Applications

Industrial-Control Local Area Networks

All devices have a 1/8-unit-load receiver input imped-

ance that allows up to 256 transceivers on the bus. The

MAX3082/MAX3085/MAX3088 are intended for half-

duplex communications, while the MAX3080/MAX3081/

MAX3083/MAX3084/MAX3086/MAX3087 are intended

for full-duplex communications. The MAX3089 is selec-

table between half-duplex and full-duplex operation. It

also features independently programmable receiver

and transmitter output phase via separate pins.

Ord e rin g In fo rm a t io n

PART

TEMP. RANGE

0°C to +70°C

-40°C to +85°C

PIN-PACKAGE

14 Plastic DIP

14 SO

MAX3080CPD

MAX3080CSD

MAX3080EPD

MAX3080ESD

14 Plastic DIP

14 SO

Ordering Information continued on last page.

S e le c t io n Ta b le

Data

Rate

(Mbps)

Slew

Rate

Limited

Low-

Power

Shutdown

Receiver/ Quiescent Transceivers

Industry-

Standard

Pinout

Half/Full

Duplex

Count

Part

Driver

Current

(µA)

Enable

Bus

MAX3080

MAX3081

MAX3082

MAX3083

MAX3084

MAX3085

MAX3086

MAX3087

MAX3088

Full

Half

Full

Half

Full

Half

0.115

0.5

Yes

375

256

75180

75179

75176

75180

75179

75176

75180

75179

75176

75180*

Yes

0.5

Yes

MAX3089 Selectable Selectable Selectable

*Pin-compatible with 75180, with additional features implemented using pins 1, 6, 8, and 13.

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

12 3 4 5 6 7...20

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与MAX3084相关器件

型号	品牌	获取价格	描述	数据表
MAX3084CPA	MAXIM	获取价格	Fail-Safe, High-Speed 10Mbps, Slew-Rate-Limited RS-485/RS-422 Transceivers
MAX3084CPA+	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, CMOS, PDIP8, PLASTIC, DIP-8
MAX3084CSA	MAXIM	获取价格	Fail-Safe, High-Speed 10Mbps, Slew-Rate-Limited RS-485/RS-422 Transceivers
MAX3084CSA+	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, CMOS, PDSO8, SO-8
MAX3084CSA-T	MAXIM	获取价格	LINE TRANSCEIVER, PDSO8, SOP-8
MAX3084E	MAXIM	获取价格	【15kVESD-Protected,Fail-Safe,High-Speed (10Mb
MAX3084E	ADI	获取价格	±15kV ESD保护、失效保护、高速(10Mbps)、限摆率RS-485/RS-422收
MAX3084ECPA	MAXIM	获取价格	【15kVESD-Protected,Fail-Safe,High-Speed (10Mb
MAX3084ECPA+	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, PDIP8, PLASTIC, DIP-8
MAX3084ECSA	MAXIM	获取价格	【15kVESD-Protected,Fail-Safe,High-Speed (10Mb

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