MAX3491E

更新时间： 2024-11-26 22:55:23

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
16页	232K
描述
3.3V-Powered, 【15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers

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数据手册

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MAX3491E 数据手册

19-1474; Rev 0; 4/99

3.3V-Pow e re d, ±15kV ESD-Prote c te d, 12Mbps a nd

Sle w -Ra te -Lim ite d True RS -485/RS -422 Tra ns c e ive rs

5680/MAX3491E

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

Fe a t u re s

Devices in the MAX3483E family (MAX3483E/MAX3485E/

MAX3486E/MAX3488E/MAX3490E/MAX3491E) a re

±15kV ESD-protected, +3.3V, low-power transceivers for

RS-485 and RS-422 communications. Each device con-

tains one driver and one receiver. The MAX3483E and

MAX3488E feature slew-rate-limited drivers that minimize

EMI and reduce reflections caused by improperly termi-

nated cables, allowing error-free data transmission at

data rates up to 250kbps. The partially slew-rate-limited

MAX3486E transmits up to 2.5Mbps. The MAX3485E,

MAX3490E, and MAX3491E transmit at up to 12Mbps.

♦ ESD Protection for RS-485 I/O Pins

±15kV—Human Body Model

±8kV—IEC 1000-4-2, Contact Discharge

±15kV—IEC 1000-4-2, Air-Gap Discharge

♦ Operate from a Single +3.3V Supply—

No Charge Pump Required

♦ Interoperable with +5V Logic

♦ Guaranteed 12Mbps Data Rate

(MAX3485E/MAX3490E/MAX3491E)

All devices feature enhanced electrostatic discharge

(ESD) protection. All transmitter outputs and receiver

inputs are protected to ±15kV using IEC 1000-4-2 Air-

Ga p Dis c ha rg e , ± 8kV us ing IEC 1000-4-2 Conta c t

Discharge, and ±15kV using the Human Body Model.

♦ Slew-Rate Limited for Errorless Data Transmission

(MAX3483E/MAX3488E)

♦ 2nA Low-Current Shutdown Mode

(MAX3483E/MAX3485E/MAX3486E/MAX3491E)

Drivers are short-circuit current limited and are protect-

ed against excessive power dissipation by thermal

shutdown circuitry that places the driver outputs into a

high-impedance state. The receiver input has a fail-safe

fe a ture tha t g ua ra nte e s a log ic -hig h outp ut if b oth

inputs are open circuit.

♦ -7V to +12V Common-Mode Input Voltage Range

♦ Full-Duplex and Half-Duplex Versions Available

♦ Industry-Standard 75176 Pinout

(MAX3483E/MAX3485E/MAX3486E)

♦ Current-Limiting and Thermal Shutdown for

The MAX3488E, MAX3490E, and MAX3491E feature

full-d up le x c ommunic a tion, while the MAX3483E,

MAX3485E, a nd MAX3486E a re d e s ig ne d for ha lf-

duplex communication.

Driver Overload Protection

Ord e rin g In fo rm a t io n

PART

TEMP. RANGE

0°C to +70°C

-40°C to +85°C

0°C to +70°C

-40°C to +85°C

PIN-PACKAGE

8 SO

MAX3483ECSA

MAX3483ECPA

MAX3483EESA

MAX3483EEPA

MAX3485ECSA

MAX3485ECPA

MAX3485EESA

MAX3485EEPA

Ap p lic a t io n s

Telecommunications

8 Plastic DIP

8 SO

Industrial-Control Local Area Networks

Transceivers for EMI-Sensitive Applications

Integrated Services Digital Networks

Packet Switching

8 Plastic DIP

8 SO

8 Plastic DIP

8 SO

8 Plastic DIP

Ordering Information continued at end of data sheet.

S e le c t o r Gu id e

GUARANTEED SUPPLY

DRIVER/ SHUTDOWN

RECEIVER CURRENT

±15kV

ESD

PROTECTION

PART

NUMBER

HALF/FULL SLEW-RATE

COUNT

DATA RATE

(Mbps)

VOLTAGE

(V)

DUPLEX

LIMITED

ENABLE

(nA)

MAX3483E

MAX3485E

MAX3486E

MAX3488E

MAX3490E

MAX3491E

0.25

Half

Full

Yes

2.5

0.25

Yes

3.0 to 3.6

—

Yes

________________________________________________________________ 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...16

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与MAX3491E相关器件

型号	品牌	获取价格	描述	数据表
MAX3491ECPD	MAXIM	获取价格	3.3V-Powered, 【15kV ESD-Protected, 12Mbps and
MAX3491ECSD	MAXIM	获取价格	3.3V-Powered, 【15kV ESD-Protected, 12Mbps and
MAX3491ECSD-T	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, PDSO14, SO-14
MAX3491EEPD	MAXIM	获取价格	3.3V-Powered, 【15kV ESD-Protected, 12Mbps and
MAX3491EESD	MAXIM	获取价格	3.3V-Powered, 【15kV ESD-Protected, 12Mbps and
MAX3491EESD/GG8	MAXIM	获取价格	3.3V-POWERED,+-15KV ESD-PROTECTED,12MBPS SLEW
MAX3491EESD+	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, PDSO14, SO-14
MAX3491EESD+T	MAXIM	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, PDSO14, SO-14
MAX3491EESD-T	MAXIM	获取价格	3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers
MAX3491EPD	MAXIM	获取价格	3.3V-Powered, 10Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers

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