Datasheet
MAX3097E/MAX3098E
±15kV ESD-Protected, 32Mbps, 3V/5V,
Triple RS-422/RS-485 Receivers with Fault Detection
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3V to +5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
SWITCHING CHARACTERISTICS
(V
CC
= +3V to +5.5V, V
ID
= ±3.0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
V
CC
= 4.5V to 5.5V 75
Propagation Delay from Input to
Output
t
PLH
, t
PHL
C
L
= 15pF,
Figures 1, 2
V
CC
= 3.0V to 3.6V 85
ns
Receiver Skew |t
PLH
- t
PHL
|t
SKEW
C
L
= 15pF, Figures 1, 2 ±10 ns
Channel-to-Channel
Propagation Delay Skew
C
L
= 15pF, Figures 1, 2 ±10 ns
Maximum Data Rate f
MAX
C
L
= 15pF, Figure 1 32 Mbps
FAULT DETECTION
t
DFLH
15
Differential Fault Propagation
Delay to Output (Note 5)
t
DFHL
C
LF
= 15pF, Figures 1, 3
1.2
µs
MAX3097E (Note 6) 1.0
Minimum Differential Slew Rate
to Avoid False Alarm Output
MAX3098E (Note 7) 0.33
V/µs
t
CMFLH
15
Common-Mode Fault
Propagation Delay to Output
(Note 5)
t
CMFHL
C
L
= 15pF, Figures 1, 4
1.5
µs
Note 1: V
CM
is the common-mode input voltage. V
ID
is the differential input voltage.
Note 2: V
IN
is the input voltage at pins A, A, B, B, Z, Z.
Note 3: A differential terminating resistor is required for proper function of open-circuit fault detection (see Applications Information).
Note 4: See Applications Information for a discussion of the receiver common-mode voltage range and the operating conditions for
fault indication.
Note 5: Applies to the individual channel immediate-fault outputs (ALARM_) and the general delayed-fault output (ALARMD) when
there is no external capacitor at DELAY.
Note 6: Equivalent pulse test: 1.3V / (t
DFLH
- t
DFHL
) ≥ SR
D
.
Note 7: Equivalent pulse test: 0.62V / (t
DFLH
- t
DFHL
) ≥ SR
D
.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
F
DIFH
High limit 70 250
MAX3098EB Fault-Detection
Receiver Differential Threshold
Voltage (Note 3)
F
DIFL
V
CM
= 0
Low limit -250 -70
mV
F
CMH
High limit 13.2
Fault-Detection Common-Mode
Voltage Range (Note 4)
F
CML
Low limit -10
V
DELAY Current Source V
CC
= 5V, V
DELAY
= 0 9 10 11 µA
V
CC
= 3V 1.55 1.73 1.90
DELAY Threshold
V
CC
= 5V 3.1 3.29 3.5
V
ESD PROTECTION
Human Body Model ±15
IEC1000-4-2 (Air-Gap Discharge) ±15
ESD Protection
(A, A, B, B, Z, Z)
IEC1000-4-2 (Contact Discharge)
±8
kV