Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Storage Temperature Range
Molded DIP −65˚C to +150˚C
Lead Temperature
Molded DIP (soldering, 10
sec.) 265˚C
Maximum Power Dissipation (Note 1) at 25˚C
N-Molded Package 1.84W
Supply Voltage 7V
Input Voltage, A or B Inputs
±
25V
Differential Input Voltage
±
25V
Enable Input Voltage 7V
Low Level Output Current 50 mA
Recommended Operating
Conditions
Min Typ Max Units
Supply Voltage (V
CC
) 4.75 5 5.25 V
Common Mode Input −7 +12 V
Voltage (V
CM
)
Differential Input −7 +12 V
Voltage (V
ID
)
Output Current High (I
OH
) −400 µA
Output Current LOW (I
OL
)16mA
Operating Temperature (T
A
) 0 25 70 ˚C
Note 1: Derate molded DIP package 15 mW/˚C above 25˚C.
Electrical Characteristics (Notes 3, 4)
over recommended temperature, common mode input voltage, and supply voltage ranges, unless otherwise specified
Symbol Parameter Conditions Min Typ Max Units
V
TH
Differential Input V
O
= 2.7V, I
O
= − 0.4 mA 0.2 V
High Threshold Voltage
V
TL
Differential Input (Note 5) V
O
= 0.5V, I
O
= 16 mA −0.2 V
Low Threshold Voltage
V
T+
−V
T−
Hysteresis (Note 6) V
CM
=0V 50 mV
V
IH
Enable Input Voltage HIGH 2.0 V
V
IL
Enable Input Voltage LOW 0.8 V
V
IC
Enable Input Clamp Voltage I
I
= −18 mA −1.5 V
V
OH
Output Voltage HIGH V
ID
= 200 mV, I
OH
= −400 µA 2.7 V
V
OL
Output Voltage LOW V
ID
= −200 mV I
OL
= 8 mA 0.45 V
I
OL
= 16 mA 0.50
I
OZ
High Impedance State Output V
O
= 0.4V to 2.4V
±
20 µA
I
I
Line Input Current (Note 7) Other Input = 0V V
I
= 12V 1.0 mA
V
I
= −7V −0.8
I
IH
Enable Input Current HIGH V
IH
= 2.7V 20 µA
I
IL
Enable Input Current LOW V
IL
= 0.4V −100 µA
R
I
Input Resistance 12 kΩ
I
OS
Short Circuit Output Current (Note 8) −15 −85 mA
I
CC
Supply Current Outputs Disabled 75 mA
Note 2: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The tables of “Electrical Characteristics” provide conditions for actual device operation.
Note 3: Unless otherwise specified Min/Max limits apply across the 0˚C to +70˚C range for the DS96173/DS96175. All typicals are given for V
CC
= 5V and T
A
= 25˚C.
Note 4: All currents into the device pins are positive; all currents out of the device pins are negative. All voltages are reference to ground unless otherwise specified.
Note 5: The algebraic convention, when the less positive (more negative) limit is designated minimum, is used in this data sheet for common mode input voltage
and threshold voltage levels only.
Note 6: Hysteresis is the difference between the positive-going input threshold voltage, V
T+
, and the negative going input threshold voltage, V
T−
.
Note 7: Refer to EIA Standards RS-485 for exact conditions.
Note 8: Only one output at a time should be shorted.
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