Operating Temperature Range ......................... -40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) ................................. +300°C
Soldering Temperature (reflow) .......................................+260°C
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.
Package Thermal Characteristics
(Note 1)
Junction-to-Ambient Thermal Resistance (θ
JA
) ..............39°C/W
Junction-to-Case Thermal Resistance (θ
JC
) .....................6°C/W
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
PARAMETER
POWER SUPPLY
Supply Voltage
Supply Current
Logic Supply Voltage
Differential Threshold Voltage
Differential Input Hysteresis
Single-Ended Input Current
Low Differential Voltage Fault
Threshold
(V
CC
= 5V±10%, V
L
= 1.62V to V
CC
, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
CC
= 5V, V
L
= 3.3V,
T
A
= +25°C.) (Notes 2, 3)
SYMBOL
V
CC
I
CC
V
L
V
TH
ΔV
TH
I
IN
V
TH_DFP
V
TH_DFN
-20V ≤ V
CM
≤ +20V
-20V ≤ V
CM
≤ +20V
V
CC
= 0V or 5V
V
IN
= -10V
V
IN
= +10V
+270
-460
-270
Outputs not switching, no load
1.62
-200
230
-170
+100
+160
+460
-270
CONDITIONS
MIN
4.5
9
TYP
MAX
5.5
14
5.5
+200
UNITS
V
mA
V
mV
mV
μA
RS-485/RS-422 RECEIVERS (RxA, RxB, RxZ, RxY)
-20V ≤ V
CM
≤ +20V, positive
-20V ≤ V
CM
≤ +20V, negative
mV
www.maximintegrated.com
Maxim Integrated
│
2
MAX14891E
Quad Fault-Protected RS-485/RS-422
Receiver with Fault Detection
Electrical Characteristics (continued)
PARAMETER
Single-Ended Input Fault
Threshold
SYMBOL
V
TH_SELP
V
TH_SELN
(V
CC
= 5V±10%, V
L
= 1.62V to V
CC
, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
CC
= 5V, V
L
= 3.3V,
T
A
= +25°C.) (Notes 2, 3)
CONDITIONS
Positive
Negative
MIN
+15
-18
TYP
MAX
+18
-15
UNITS
V
LOGIC INTERFACE (AO,
AFAULT,
BO,
BFAULT,
ZO,
ZFAULT,
YO,
YFAULT)
Output High Voltage
Output Low Voltage
PROTECTION
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
Fault-Protected Input Voltage
Range (A,
A,
B,
B,
Z,
Z,
Y,
Y)
ESD Protection
(A,
A,
B,
B,
Z,
Z,
DIY,
Y)
ESD Protection (All Other Pins)
T
SHDN
T
HYST
V
IN_F
IEC 61000-4-2 air-gap discharge to GND
IEC 61000-4-2 contact discharge to GND
Human Body Model
Human Body Model
-40
±7
±10
±25
±2
kV
kV
Temperature rising
+160
10
+40
°C
°C
V
V
OH
V
OL
AO, BO, ZO, YO, I
OUT
= -3mA
AO, BO, ZO, YO,
AFAULT, BFAULT,
ZFAULT, YFAULT,
I
OUT
= +3mA
V
L
-
0.4V
0.4
V
V
www.maximintegrated.com
Maxim Integrated
│
3
MAX14891E
Quad Fault-Protected RS-485/RS-422
Receiver with Fault Detection
Switching Characteristics
PARAMETER
Maximum Data Rate
Receiver Propagation Delay
Receiver Propagation Delay Skew
|t
DPLH -
t
DPHL
|
Receiver Channel-to-Channel
Skew
(V
CC
= 5V±10%, V
L
= 1.62V to V
CC
, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V
CC
= 5V, V
L
= 3.3V,
T
A
= +25°C.) (Notes 2, 3)
SYMBOL
DR
MAX
t
DPLH
t
DPHL
t
HLSKEW
t
CSKEW
C
L
= 15pF, V
ID
= ±3V,
Figure 1, Figure 2
CONDITIONS
MIN
35
25
25
0
5
TYP
MAX
UNITS
Mbps
ns
ns
ns
RECEIVER (RxA, RxB, RxZ, RxY) (Note 4)
C
L
= 15pF, V
ID
= ±3V,
Figure 1, Figure 2
C
L
= 15pF, V
ID
= ±3V,
Figure 1, Figure 2
0
8
ns
FAULT DETECTION (AFAULT,
BFAULT, ZFAULT)
(Note 4)
Differential Fault Propagation
Delay to
_FAULT
Output Active
Differential Slew Rate to Avoid
Fault Alarm Output
Single-Ended Propagation Delay
to
_FAULT
Output Active
t
SEFLH
t
SEFHL
t
DFLH
R
FAULT
= 5kW, C
FAULT
= 15pF,
Figure 1, Figure 3
R
FAULT
= 5kW, C
FAULT
= 15pF,
Figure 1, Figure 3
R
FAULT
= 5kW, C
FAULT
= 15pF
1
970
970
18
6
μs
V/μs
μs
Note 2:
All devices 100% production tested at TA = 25°C. Specifications over temperature are guaranteed by design.
Note 3:
Currents into the device are positive; all currents out of the device are negative. All voltages are referenced to ground, unless
otherwise noted.
Note 4:
Capacitive load includes test prove and fixture capacitance.
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