TL/F/5781
DS1603/DS3603 TRI-STATE Dual Receivers
February 1996
DS1603/DS3603 TRI-STATEÉDual Receivers
General Description
The DS1603/DS3603 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 receivers feature a g25 mV input sensitivity specified
over a g3V 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 VCCasupplies or VCCasupplies that are turned
off thus avoiding signal clamping. In addition, TTL compati-
ble strobe and control lines are provide for flexibility in the
application.
The DS1603/DS3603 are pin compatible with the DS75107,
DS75108 and DS75208 series of dual line receivers.
Features
YDiode protected input stage for power ‘‘OFF’’ condition
Y17 ns typ high speed
YTTL compatible
Yg25 mV input sensitivity
Yg3V input common-mode range
YHigh-input inpedance with normal VCC, or VCC e0V
YStrobes for channel selection
YTRI-STATE outputs for high speed buses
Connection Diagram
Dual-In-Line Package
TL/F/5781–2
Top View
Order Number DS3603N
See NS Package Number N14A
For Complete Military 883 Specifications, See RETS Data Sheet.
Order Number: DS1603J/883 or DS1603W/883
See NS Package Number J14A
TRI-STATEÉis a registered trademark of National Semiconductor Corporation.
C1996 National Semiconductor Corporation RRD-B30M36/Printed in U. S. A. http://www.national.com
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
Supply Voltage (VCCa)7V
Supply Voltage (VCCb)b7V
Differential Input Voltage g6V
Common Mode Input Voltage g5V
Strobe Input Voltage 5.5V
Storage Temperature Range b65§Ctoa
150§C
Maximum Power Dissipation*at 25§C
Cavity Package 1308 mW
Molded Package 1207 mW
Lead Temperature (Soldering, 4 sec) 260§C
*Derate cavity package 8.7 mW/§C above 25§C; derate molded package
9.7 mW/§C above 25§C.
Operating Conditions
DS1603 DS3603
Min Nom Max Min Nom Max
Supply Voltage VCCa4.5V 5V 5.5V 4.75 5V 5.25V
Supply Voltage VCCbb4.5V b5V b5.5V b4.75 b5V b5.25V
Operating Temperature Range b55§Ctoa
125§C0
§
Cto
a
70§C
Electrical Characteristics TMIN sTAsTMAX (Notes 2, 3)
Symbol Parameter Conditions Min Typ Max Units
IIH High Level Input Current VCCaeMax, VCCbeMax, 30 75 mA
into 1A, 1B, 2A or 2B VID e0.5V, VIC eb
3V to 3V
IIL Low Level Input Current VCCaeMax, VCCbeMax, b10 mA
into 1A, 1B, 2A or 2B VID eb
2V, VIC eb
3V to 3V
IIH High Level Input Current VCCaeMax VIH(S) e2.4V 40 mA
into 1G, 2G or D VCCbeMax VIH(S) eMax VCCa1mA
I
IL Low Level Input Current VCCaeMax, VCCbeMax, b1.6 mA
into D VIL(D) e0.4V
IIL Low Level Input Current VCCaeMax, VIH(D) e2V b40 mA
into 1G or 2G VCCbeMax, VIL(D) e0.8V b1.6 mA
VIL(G) e0.4V
VOH High Level Output Voltage VCCaeMin, VCCbeMin,
ILOAD eb
2 mA, VID e25 mV, 2.4 V
VIL(D) e0.8V, VIC eb
3V to 3V
VOL Low Level Output Voltage VCCaeMin, VCCbeMin,
ISINK e16 mA, VID eb
25 mV, 0.4 V
VIL(D) e0.8V, VIC eb
3V to 3V
IOD Output Disable Current VCCaeMax, VOUT e2.4V 40 mA
VCCbeMax, VOUT e0.4V b40 mA
VIH(D) e2V
IOS Short Circuit Output Current VCCaeMax, VCCbeMax, b18 b70 mA
VIL(D) e0.8V (Note 4)
ICCHaHigh Logic Level Supply VCCaeMax, VCCbeMax, 28 40 mA
Current from VCCaVID e25 mV, TAe25§C
ICCHbHigh Logic Level Supply VCCaeMax, VCCbeMax, b8.4 b15 mA
Current from VCCbVID e25 mV, TAe25§C
VIInput Clamp Voltage VCCaeMin, VCCbeMin, b1b1.5 V
onGorD I
IN eb
12 mA, TAe25§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 b55§Ctoa
125§C temperature range for the DS1603 and across the 0§Ctoa
70§C range for
the DS3603. All typical values are for TAe25§C and VCC e5V.
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.
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Switching Characteristics VCCae5V, VCCbeb
5V, TAe25§C
Symbol Parameter Conditions Min Typ Max Units
tPLH(D) Propagation Delay Time, Low-to- RLe390X,C
Le50 pF, (Note 1)
High Level, from Differential 17 25 ns
Inputs A and B to Output
tPHL(D) Propagation Delay Time, High-to- RLe390X,C
Le50 pF, (Note 1)
Low Level, from Differential 17 25 ns
Inputs A and B to Output
tPLH(S) Propagation Delay Time, Low-to- RLe390X,C
Le50 pF
High Level, from Strobe Input G 10 15 ns
to Output
tPHL(S) Propagation Delay Time, High-to- RLe390X,C
Le50 pF
Low Level, from Strobe Input G 8 15 ns
to Output
t1H Disable Low-to-High to Output RLe390X,C
Le5pF 20 ns
High to Off
t0H Disable Low-to-High to Output RLe390X,C
Le5pF 30 ns
Low to Off
tH1 Disable High-to-Low to Output RLe1k to 0V, CLe50 pF 25 ns
Off to High
tH0 Disable High-to-Low to Output RLe390X,C
Le50 pF 25 ns
Off to Low
Note 1: Differential input is a100 mV to b100 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
Line receivers are
DS75107/DS75108
or DS3603
Line drivers are
SN75109/mA75110/DS75110
or DS8831
TL/F/5781–3
http://www.national.com3
Schematic Diagram (Note 1)
DS1603/DS3603
TL/F/5781–6
Note 1: (/2 of the dual circuit is shown.
Note 2: *Indicates connections common to second half of dual circuit.
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Physical Dimensions inches (millimeters)
Ceramic Dual-In-Line Package (J)
Order Number DS1603J or DS3603J
NS Package Number J14A
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DS1603/DS3603 TRI-STATE Dual Receivers
Physical Dimensions inches (millimeters) (Continued)
Molded Dual-In-Line Package (N)
Order Number DS3603N
NS Package Number N14A
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failure to perform, when properly used in accordance support device or system, or to affect its safety or
with instructions for use provided in the labeling, can effectiveness.
be reasonably expected to result in a significant injury
to the user.
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