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M
+3.3V Multiprotocol Software-Selectable
Cable Terminators and Transceivers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND unless otherwise noted.)
Supply Voltages
V
CC
......................................................................-0.3V to +4V
V+ (Note 1)..........................................................-0.3V to +7V
V- (Note 1)...........................................................+0.3V to -7V
V+ to V- (Note 1) ...............................................................13V
Logic Input Voltages
M0, M1, M2, DCE/
DTE,
INVERT, T4IN ................-0.3V to +6V
Logic Output Voltages
R4OUT...................................................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration............................................Continuous
Transmitter Outputs
T4OUT................................................................-15V to +15V
Short-Circuit Duration........................................................60s
ELECTRICAL CHARACTERISTICS
(V
CC
= +3.3V ± 5%, T
A
= T
MIN
to T
MAX
. Typical values are at V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted. See Note 2 for V+
and V- input voltage conditions.)
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.
Note 1:
V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
Receiver Input
R4INA.................................................................-15V to +15V
Termination Network Inputs (applied individually)
R_A, R_B ............................................................-15V to +15V
Continuous Power Dissipation (T
A
= +70°C)
28-Pin SSOP (derate 9.52mW/°C above +70°C) ........762mW
Operating Temperature Range
MAX3172CAI/MAX3174CAI...............................0°C to +70°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
All modes V.10 receiver inactive
All modes V.10 receiver active
No-cable mode
80
400
0.2
0.5
11.0
3.0
-0.4
-0.8
-11.0
200
750
1.0
2.5
14.0
5.0
-1.0
-2.5
-14.0
Supply Current
(Digital Inputs = GND or V
CC
)
I
CC
μA
V.10/V.11/V.28/V.35 modes unloaded
V.10/V.11 modes T4OUT loaded
V.28/V.35 modes T4OUT loaded
No-cable mode
V.10/V.11/V.28/V.35 modes unloaded
V.10/V.11 modes T4OUT loaded
V+ Supply Current
(T4IN = GND)
I
V+
mA
V- Supply Current
(T4IN = V
CC
)
I
V-
V.28/V.35 modes T4OUT loaded
-3.0
-5.0
mA
TERMINATOR NETWORKS
(R_A, R_B)
Differential-Mode Impedance
V.35 Mode
Figure 1, -2V
≤
V
CM
≤
+2V
90
104
110
Common-Mode Impedance
V.35 Mode
Figure 2, -2V
≤
V
CM
≤
+2V
135
153
165
Differential-Mode Impedance
V.11 Mode
Figure 1, -7V
≤
V
CM
≤
+7V
100
104
110
Network OFF Impedance
I
Z
Switches open, -15V
≤
V
A
≤
+15V, V
B
= V
A
,
V
B
= GND or V
B
floating
50
150
k
LOGIC INPUTS
(M0, M1, M2, INVERT, DCE/
DTE
, T4IN)
Input High Voltage
Input Low Voltage
Logic Input Current
V
IH
V
IL
I
IH
, I
IL
2.0
V
V
μA
0.8
±1
V
IN
= V
CC
or GND