
5
Absolute Maximum Ratings
Thermal Information
V
CC
 to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  7V
Input Voltages
DI, DE, RE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -0.5V to +7V
Input/Output Voltages
A, B, Y, Z . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  -8V to +12.5V
RO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to (V
CC
 +0.5V)
Short Circuit Duration
Y, Z. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  Continuous
Operating Conditions
Temperature Range
ISL834XXIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to 85
o
C
Thermal Resistance (Typical, Note 1)
8 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . 
8 Ld PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . 
14 Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . 
14 Ld PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . 
Maximum Junction Temperature (Plastic Package) . . . . . . .  150
o
C
Maximum Storage Temperature Range  . . . . . . . . . -65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . .  300
o
C
(SOIC- Lead Tips Only)
θ
JA
 (
o
C/W)
170
140
130
105
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1.
 θ
JA
 is measured with the component mounted on a low effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Electrical Specifications
Test Conditions: V
CC
 = 3V to 3.6V; Unless Otherwise Specified. Typicals are at V
CC
 = 3.3V, T
A
 = 25
o
C, 
Note 2
PARAMETER
SYMBOL
TEST CONDITIONS
TEMP
(
o
C)
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
Driver Differential V
OUT
 (no load)
Driver Differential V
OUT
 (with load)
V
OD1
V
OD2
Full
-
-
V
CC
-
V
R
L
 = 100
 (RS-422) (Figure 1A)
R
L
 = 54
 (RS-485) (Figure 1A)
R
L
 = 60
, -7V 
≤
 V
CM
≤
 12V (Figure 1B)
R
L
 = 54
 or 100
 (Figure 1A)
Full
2
2.7
V
Full
1.5
2.3
V
CC
-
V
Full
1.5
2.6
V
Change in Magnitude of Driver 
Differential V
OUT
 for 
Complementary Output States
V
OD
Full
-
0.01
0.2
V
Driver Common-Mode V
OUT
Change in Magnitude of Driver 
Common-Mode V
OUT
 for 
Complementary Output States
V
OC
V
OC
R
L
 = 54
 or 100
 (Figure 1A)
R
L
 = 54
 or 100
 (Figure 1A)
Full
-
1.8
3
V
Full
-
0.01
0.2
V
Logic Input High Voltage
V
IH
V
IL
I
IN1
DE, DI, RE
Full
2
-
-
V
Logic Input Low Voltage
DE, DI, RE
Full
-
-
0.8
V
Logic Input Current
DE, DI
Full
-2
-
2
μ
A
RE
Full
-25
-
25
μ
A
Input Current (A, B)
I
IN2
DE = 0V, V
CC
 = 0V or 3.6V
V
IN
 = 12V
V
IN
 = -7V
Full
-
0.6
1
mA
Full
-
-0.3
-0.8
mA
Output Leakage Current (Y, Z) 
(ISL83491)
I
IN3
RE = 0V, DE = 0V, V
CC
= 0V or 3.6V V
IN
 = 12V
Full
-
14
20
μ
A
V
IN
 = -7V
Full
-20
-11
-
μ
A
Output Leakage Current (Y, Z)
in Shutdown Mode (ISL83491)
I
IN3
RE = V
CC
, DE = 0V, V
CC
 = 0V or 3.6V V
IN
 = 12V
Full
-
0.03
1
μ
A
V
IN
 = -7V
Full
-1
-0.01
-
μ
A
Receiver Differential Threshold 
Voltage
V
TH
-7V 
≤
 V
CM
≤
 12V
Full
-0.2
-
0.2
V
Receiver Input Hysteresis
V
TH
V
OH
V
CM
 = 0V
I
O
 = -4mA, V
ID
 = 200mV
25
-
50
-
mV
Receiver Output High Voltage
Full
V
CC
 - 
0.4
-
-
V
Receiver Output Low Voltage
V
OL
I
O
 = -4mA, V
ID
 = 200mV
Full
-
-
0.4
V
ISL83483, ISL83485, ISL83488, ISL83490, ISL83491