+3.3V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional

operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to

absolute maximum rating conditions for extended periods may affect device reliability.

(All voltages referenced to GND)

Control Input Voltage (RE, DE, SLR,

H/F, TXP, RXP)......................................................-0.3V to +6V

Driver Input Voltage (DI)...........................................-0.3V to +6V

Driver Output Voltage (Z, Y, A, B) .............................-8V to +13V

Receiver Input Voltage (A, B)....................................-8V to +13V

Receiver Input Voltage

Full Duplex (A, B) ..................................................-8V to +13V

Driver Output Current .....................................................±250mA

8-Pin SO (derate 5.88mW/°C above +70°C) .................471mW

8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW

14-Pin SO (derate 8.33mW/°C above +70°C) ...............667mW

14-Pin Plastic DIP (derate 10.0mW/°C above +70°C) ...800mW

Operating Temperature Ranges

MAX307_EE_ _ ................................................-40°C to +85°C

MAX307_EA_ _ ..............................................-40°C to +125°C

MAX3077EMSA .............................................-55°C to +125°C

Junction Temperature ......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

DRIVER

(RS422), Figure 1

2

(RS485), Figure 1

1.5

Differential Driver Output

No load

V

Change in Magnitude of

Differential Output Voltage

or 54 , Figure 1 (Note 2)

0.2

V

Driver Common-Mode Output

Voltage

or 54 , Figure 1

3

V

Change in Magnitude of

Common-Mode Voltage

or 54 , Figure 1 (Note 2)

0.2

V

Input High Voltage

DE, DI,

RE, TXP, RXP, H/F

2

V

Input Low Voltage

DE, DI,

RE, TXP, RXP, H/F

0.8

V

Input Hysteresis

DE, DI,

RE, TXP, RXP, H/F

100

mV

Input Current

DE, DI,

RE

±1

μA

Input Impedance First Transition

DE

1

10

k

Input Current

TXP, RXP, H/

F internal pulldown

10

40

μA

SRL Input High Voltage

V

SRL Input Middle Voltage

V

SRL Input Low Voltage

0.4

V

75

SRL Input Current

SRL = GND

-75

μA

125

Output Leakage (Y and Z)

Full Duplex

DE = GND,

-100

μA

MAX3070E–MAX3079E

2

Maxim Integrated