ABSOLUTE MAXIMUM RATINGS

Supply Voltage (VCC) 12V

Continuous Power Dissipation (TA= +70°C)

Control Input Voltage -0.5V to (VCC + 0.5V)

8-Pin Plastic DIP (derate 9.09mW/°C above

+70°C) 727mW

Driver Input Voltage (DI) -0.5V to (VCC+ 0.5V)

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

471mW

Receiver Input Voltage (A, B) -8V to +12.5V

Storage Temperature Range -65°C to +160°C

Receiver Output Voltage (RO) -0.5V to

(VCC+0.5V)

Lead Temperature (soldering, 10sec) +300°C

DC ELECTRICAL CHARACTERISTICS

(VCC = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted.) (Notes 1, 2)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Differential Driver Output (no

load)

VOD1

5

V

R = 50Ω (RS-422)

2

Differential Driver Output

(with load)

VOD2

R = 27Ω (RS-485), Figure 4

1.5

5

V

Change in Magnitude of Driver

Differential Output Voltage for

Complementary Output States

∆VOD

R = 27Ω or 50Ω, Figure 4

0.2

V

Driver Common-Mode Output

Voltage

VOC

R = 27Ω or 50Ω, Figure 4

3

V

Change in Magnitude of Driver

Common-Mode Output Voltage

for Complementary Output

States

∆VOD

R = 27Ω or 50Ω, Figure 4

0.2

V

Input High Voltage

VIH

DE, DI,

RE

2.0

V

Input Low Voltage

VIL

DE, DI,

RE

0.8

V

Input Current

IIN1

DE, DI,

RE

±2

µA

DE = 0V;

VIN = 12V

1.0

Input Current

(A, B)

IIN2

VCC = 0V or 5.25V,

VIN = -7V

-0.8

mA

Receiver Differential Threshold

Voltage

VTH

-7V ≤ VCM ≤12V

-0.2

0.2

V

Receiver Input Hysteresis

∆VTH

VCM = 0V

70

mV

Receiver Output High Voltage

VOH

IO = -4mA, VID = 200mV

3.5

V

Receiver Output Low Voltage

VOL

IO = 4mA, VID = -200mV

0.4

V

Three-State (high impedance)

Output Current at Receiver

IOZR

0.4V ≤ VO ≤ 2.4V

±1

µA

Receiver Input Resistance

RIN

-7V ≤ VCM ≤ 12V

kΩ

MAX485E

Rev:2023A2

2

Driver Output Voltage (A, B) -8V to +12.5V

Operating Temperature Ranges-40°C to +85°C