ADM485
ABSOLUTE MAXIMUM RATINGS*
(T
A
= 25°C, unless otherwise noted.)
Table I. Transmitting
V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Inputs
Driver Input (DI) . . . . . . . . . . . . . . . . –0.3 V to V
CC
+ 0.3 V
Control Inputs (DE,
RE)
. . . . . . . . . . –0.3 V to V
CC
+ 0.3 V
Receiver Inputs (A, B) . . . . . . . . . . . . . . . . . . –9 V to +14 V
Outputs
Driver Outputs (A, B) . . . . . . . . . . . . . . . . . . –9 V to +14 V
Receiver Output . . . . . . . . . . . . . . . . . –0.5 V to V
CC
+ 0.5 V
Power Dissipation 8-Lead MSOP . . . . . . . . . . . . . . . . 900 mW
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 206°C/W
Power Dissipation 8-Lead PDIP . . . . . . . . . . . . . . . . . 500 mW
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 130°C/W
Power Dissipation 8-Lead SOIC . . . . . . . . . . . . . . . . . 450 mW
θ
JA
, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 170°C/W
Operating Temperature Range
Commercial (J Version) . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Industrial (A Version) . . . . . . . . . . . . . . . . . –40°C to +85°C
Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300°C
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 sec). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220°C
*Stresses
above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum ratings
for extended periods of time may affect device reliability.
Inputs
DE
1
1
0
DI
1
0
X
Outputs
B
0
1
Z
A
1
0
Z
Table II. Receiving
RE
0
0
0
1
Inputs
A–B
≥
+0.2 V
≤
–0.2 V
Output
RO
1
0
1
Z
Inputs Open
X
ORDERING GUIDE
Model
ADM485AN
ADM485AR
ADM485AR-REEL
ADM485ARZ*
ADM485ARZ-REEL*
ADM485ARM
ADM485ARM-REEL
ADM485ARM-REEL7
ADM485JN
ADM485JR
ADM485JR-REEL
ADM485JR-REEL7
ADM485JRZ*
ADM485JRZ-REEL*
ADM485JRZ-REEL7*
*Z
= Lead Free.
Temperature Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
Package Option
N-8
R-8
R-8
R-8
R-8
RM-8
RM-8
RM-8
N-8
R-8
R-8
R-8
R-8
R-8
R-8
Branding
M41
M41
M41
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
ADM485 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.
REV. E
–3–
ROCHESTER [ Rochester Electronics ]
