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DS78C120 Datasheet, PDF (2/9 Pages) National Semiconductor (TI) – Dual CMOS Compatible Differential Line Receiver
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Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
Input Voltage
Strobe Voltage
Output Sink Current
Maximum Power Dissipation (Note 1) at 25˚C
Cavity Package
Molded Package
18V
±25V
18V
50 mA
1433 mW
1362 mW
Storage Temperature Range
−65˚C to +150˚C
Lead Temperature (Soldering, 4 seconds)
260˚C
Operating Conditions
Min
Max
Units
Supply Voltage (VCC)
Temperature (TA)
DS78C120
4.5
15
V
−55 +125
˚C
Common-Mode Voltage (VCM) −15
+15
V
Note 1: Derate cavity package 9.6 mW/˚C; derate molded package
10.9 mW/˚C above 25˚C.
Electrical Characteristics (Notes 3, 4)
Symbol
VTH
VTL
VTH
VTL
RIN
RT
RO
IIND
VTHB
VOH
VOL
ICC
IIN(1)
IIN(0)
VIH
VIL
IOS
Parameter
Differential Threshold
Voltage
Differential Threshold
Voltage
Differential Threshold
Voltage Fail-Safe
Offset = 5V
Input Resistance
Line Termination
Resistance
Offset Control Resistance
Data Input Current
(Unterminated)
Input Balance
(Note 6)
Logical “1” Output Voltage
Logical “0” Output Voltage
Power Supply Current
Logical “1” Strobe Input
Current
Logical “0” Strobe Input
Current
Logical “1” Strobe Input
Voltage
Logical “0” Strobe Input
Voltage
Output Short-Circuit
Current
Conditions
IOUT = −200 µA,
−7V ≤ VCM ≤ 7V
VOUT ≥ V CC − 1.2V
−15V ≤ VCM ≤ 15V
IOUT = 1.6 mA,VOUT ≤ 0.5V −7V ≤ VCM ≤ 7V
−15V ≤ VCM ≤ 15V
IOUT = −200 µA,
−7V ≤ VCM ≤ 7V
VOUT ≥ VCC − 1.2V
IOUT = 1.6 mA,VOUT ≤ 0.5V −7V ≤ VCM ≤ 7V
−15V ≤V CM ≤ 15V, 0V ≤ VCC ≤ 15V
TA = 25˚C
TA = 25˚C
0V ≤ VCC ≤ 15V
VCM = 10V
VCM = 0V
VCM = −10V
IOUT = 200 µA, VOUT ≥
−7V ≤ VCM ≤ 7V
VCC − 1.2V, RS = 500Ω
IOUT = 1.6 mA,VOUT ≤ 0.5V −7V ≤ VCM ≤ 7V
RS = 500Ω
I OUT = −200 µA, VDIFF = 1V
I OUT = 1.6 mA, VDIFF = −1V
15V ≤ VCM ≤ −15V,
VCC = 5.5V
VDIFF = −0.5V
(Both Receivers)
VCC = 15V
V STROBE = 15V, VDIFF = 3V
V STROBE = 0V, VDIFF = −3V
VOL ≤ 0.5V, IOUT = 1.6 mA VCC = 5V
VCC = 10V
VCC = 15V
VOH V CC − 1.2V,
VCC = 5V
IOUT = −200 µA
VCC = 10V
VCC = 15V
V OUT = 0V, VCC = 15V, VSTROBE = 0V, (Note 5)
Min
Typ
Max Units
0.06
0.2 V
0.06
0.3 V
−0.08
−0.2 V
−0.08
−0.3 V
0.47
0.7 V
0.2
0.42
V
4
5
kΩ
100
180
300 Ω
56
kΩ
2
3.1 mA
0
−0.5 mA
−2
−3.1 mA
0.1
0.4 V
−0.1
−0.4 V
VCC − 1.2 VCC − 0.75
V
0.25
0.5 V
8
15 mA
15
30 mA
15
100 µA
−0.5
−100 µA
3.5
2.5
V
8.0
5.0
V
12.5
7.5
V
2.5
1.5 V
5.0
2.0 V
7.5
2.5 V
−5
−20
−40 mA
Note 2: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. Except for “Operating Temperature Range” they
are not meant to imply that the devices should be operated at these limits. The table of “Electrical Characteristics” provides conditions for actual device operation.
Note 3: Unless otherwise specified min/max limits apply across the −55˚C to +125˚C temperature range for the DS78C120. All typical values for TA = 25˚C, VCC =
5V and VCM = 0V.
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