General Description
The OS1603/0S3603 are dual differential TRI-STATE line receivers designed for a broad range of system applica-tions. They feature a high input impedance and low input current which reduces the loading effects on a digital trans-mission line, making them ideal for use in party line systems and general purpose applications like transducer preamplifi-ers, level translators and comparators.
The OS1603/0S3603 are pin compatible with the OS75107, OS75108 and OS75208 series of dual line receivers.
Features
• Oiode protected input stage for power "OFF" condition
• 17 ns typ high speed
• TTL compatible
• ± 25 mV input sensitivity The receivers feature a ± 25 mV input sensitivity specified
over a
±
3V common mode range. Input protection diodes are incorporated in series with the collectors of the differen-tial stage. These diodes are useful in applications that have multiple Vee+ supplies or Vee+ supplies that are turned off thus avoiding signal clamping. In addition, TTL compati-ble strobe and control lines are provide for flexibility in the application.• ± 3V input common-mode range
Connection Diagram
INPUT lA
• High-input inpedance with normal Vee, or Vee = OV
• Strobes for channel selection
• TRI-STATE outputs for high speed buses
Dual-In-Line Package
INPUT INPUT OUTPUT STROBE
vcc- 2A 2B NC 2V 2G
INPUT NC OUTPUT STROBE OISABLE GNO
lB IV lG 0
Top View
Order Number DS1603J, DS3603J or DS3603N See NS Package Number J 14A or N 14A
TLlF/5781-2
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Absolute Maximum Ratings
(Note 1)If Military! Aerospace specified devices are required, Strobe Input Voltage 5.5V contact the National Semiconductor Sales Office! Storage Temperature Range - 65°C to
+
150°C Distributors for availability and specifications.Maximum Power Dissipation" at 25°C
Supply Voltage (Vcc+) 7V Cavity Package 1308 mW
Supply Voltage (Vcc-) -7V Molded Package 1207 mW
Differential Input Voltage ±6V Lead Temperature (Soldering, 4 sec) 260°C
Common Mode Input Voltage ±5V "Derate cavity package B.7 mWrC above 2S'C; derate molded package 9.7 mWrC above 2S'C.
Operating Conditions
051603 053603
Min Nom Max Min Nom Max
Supply Voltage Vcc + 4.5V 5V 5.5V 4.75 5V 5.25V
Supply Voltage Vcc- -4.5V -5V -5.5V -4.75 -5V -5.25V
Operating Temperature Range -55°C to
+
125°C O°C to+
70°CElectrical Characteristics
TMIN :0; TA:O; TMAX (Notes 2, 3)Symbol Parameter Conditions Min Typ Max Units
IIH High Level Input Current Vcc+ = Max, Vcc- = Max,
30 75 /-LA
into 1A, 1 B, 2A or 2B VID = 0.5V, VIC = -3V to 3V
IlL Low Level Input Current into 1A, 1 B, 2A or 2B Vcc+ VID = = -2V, VIC Max, Vcc-= -3V to 3V = Max, -10 /-LA
IIH High Level Input Current Vcc+ = Max VIH(S) = 2.4V 40 /-LA
into 1G, 2G or 0 Vcc- = Max VIH(S) = MaxVcc+ 1 mA
IlL Low Level Input Current Vcc+ = Max, Vcc- = Max,
-1.6 mA
into 0 VIL(D) = O.4V
IlL Low Level Input Current Vcc+ = Max, VIH(D) = 2V -40 /-LA
into 1G or 2G Vcc- = Max,
VIL(D) = 0.8V -1.6 mA
VIL(G) = O.4V
VOH High Level Output Voltage Vcc+ = Min, Vcc-= Min,
ILOAD = -2 mA, VID = 25 mV, 2.4 V
VIL(D) = 0.8V, VIC = -3V to 3V VOL Low Level Output Voltage Vcc+ = Min, Vcc-= Min,
ISINK = 16 mA, VID = - 25 mV, 0.4 V
VIL(D) = 0.8V, VIC = -3V to 3V
laD Output Disable Current Vcc+ = Max, VOUT = 2.4V 40 /-LA
Vcc- = Max,
VOUT = O.4V
VIH(D) = 2V -40 /-LA
los Short Circuit Output Current Vcc+ = Max, Vcc- = Max,
-18 -70 mA
VIL(D) = 0.8V (Note 4) ICCH+ High Logic Level Supply Vcc+ = Max, Vcc-= Max,
28 40 mA
Current from Vcc+ VID = 25 mV, TA = 25°C
ICCH- High Logic Level Supply Vcc+ = Max, Vcc- = Max, -8.4 -15 mA
Current from Vcc- VID = 25 mV, TA = 25°C VI Input Clamp Voltage Vcc+ = Min, Vcc- = Min,
-1 -1.5 V
on G orO liN = -12 mA, TA = 25°C
Note 1: "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 2: Unless otherwise specified min/max limits apply across the -SS'C to + 12S'C temperature range for the D81603 and across the O'C to + 70'C range for the D83603. All typical values are for T A = 2S'C and Vee = SV.
Note 3: All current into device pins shown as positive, out of device pins as negative, all voltages referenced to ground unless otherwise noted. All values shown as max or min on absolute value basis.
Note 4: Only one output at a time should be shorted.
1-70
Switching Characteristics
Vcc+ = 5V, Vcc- = -5V, TA = 25°CSymbol Parameter Conditions Min
tpLH(D) Propagation Delay Time, Low-to- RL = 3900., CL = 50 pF, (Note 1) High Level, from Differential
Inputs A and B to Output tpHL(D) Propagation Delay Time,
High-to-Low Level, from Differential
RL = 3900., CL = 50 pF, (Note 1) Inputs A and B to Output
tpLH(S) Propagation Delay Time, Low-to-High Level, from Strobe Input G
RL = 3900., CL = 50 pF to Output
tpHL(S) Propagation Delay Time, High-to-Low Level, from Strobe Input G
RL = 3900., CL = 50 pF to Output
t1H Disable Low-to-High to Output RL = 3900., CL = 5 pF High to Off
tOH Disable Low-to-High to Output RL = 3900., CL = 5 pF Low to Off
tH1 Disable High-to-Low to Output RL = 1 k to OV, CL = 50 pF Off to High
tHo Disable High-to-Low to Output RL = 3900., CL = 50 pF Off to Low
Note 1: Differential input is + 100 mV to -100 mV pulse. Delays read from 0 mV on input to 1.5V on output.
Typical Application
Line Receiver Used in a Party-Line or Data-Bus System RECEIVERS
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DRIVERS
Typ Max Units
17 25 ns
17 25 ns
10 15 ns
8 15 ns
20 ns
30 ns
25 ns
25 ns
Line receivers are 0575107/0575108 or OS3603 Line drivers are
5N751 091 J-LA7511 0/057511 0 or OS8831
TL/F/57Bl-3
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