NSC DS75110AN, DS75110AM Datasheet
DS75110A
Dual Line Drivers
DS75110A Dual Line Drivers
January 1996
General Description
The DS75110A is a dual line driver with independent channels, common supply and ground terminals featuring constant current outputs. These drivers are designed for optimum performance when used with the DS75107, DS75108
line receivers.
The output current of the DS75110A is nominally 12 mA and
may be switched to either of two output terminals with the
appropriate logic levels at the driver input.
Separate or common control inputs are provided for increased logic versatility. These control or inhibit inputs allow
the output current to be switched off (inhibited) by applying
low logic levels to the control inputs. The output current in
the inhibit mode, I
loading is induced. This is highly desirable in system applications using party line data communications.
, is specified so that minimum line
O(Off)
Features
n Improved stability over supply voltage and temperature
ranges
n Constant current, high impedance outputs
n High speed: 15 ns max propagation delay
n Standard supply voltages
n Inhibitor available for driver selection
n High common mode output voltage range
(−3.0V to 10V)
n TTL input compatibility
Connection Diagram Function Table
14–Lead Dual-In-Line Package
and SO-14 Package
Logic Inhibitor
1 2 A/B INH
X X L X Off Off
X X X L Off Off
L X H H Off On
X L H H Off On
HHHHOnOff
=
H
High
L=Low
X=Don’t Care
Inputs Outputs
A1/B1 A2/B2
DS009619-1
Order Number DS75110AM or DS75110AN
See NS Package Number M14A or N14A
© 1999 National Semiconductor Corporation DS009619 www.national.com
Top View
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
Ceramic DIP −65˚C to +175˚C
Molded DIP and SO-14 −65˚C to +150˚C
Lead Temperature
Molded DIP and SO-14
(Soldering, 10 sec.) 265˚C
Maximum Power Dissipation (Note 1) at 25˚C
Molded Package 1040 mW
SO Package 930 mW
Suppy Voltage
Input Voltage (Any Input) 5.5V
Output Voltage (Any Output) −5.0V to +12V
Ceramic DIP (Soldering, 60 sec.) 300˚C
Recommended Operating Conditions
DS75110A Units
Min Typ Max
Positive Supply Voltage (V
Negative Supply Voltage (V
Positive Common Mode Voltage (V
Negative Common Mode Voltage (V
Operating Temperature (T
Note 1: Derate molded DIP package 8.3 mW/˚C above 25˚C, derate SO package 7.5 mW/˚C above 25˚C.
+
) 4.75 5.0 5.25 V
−
) −4.75 −5.0 −5.25 V
) 0 10 V
CM+
) 0 −3.0 V
CM−
) 0 25 70 ˚C
A
Electrical Characteristics (Notes 3, 4)
Over recommended operating temperature range, unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Units
V
IH
V
IL
V
IC
I
O(On)
I
O(Off)
I
I
I
IH
I
IL
I+
(On)
I−
(On)
I+
(Off)
I−
(Off)
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 0˚C to +70˚C range for the DS75110.All typicals are given for V
Note 4: When using only one channel of the line drivers, the other channel should be inhibited and/or its outputs grounded.
Input Voltage HIGH 2.0 V
Input Voltage LOW 0.8 V
=
Input Clamp Voltage V
On-State V
Output Current V
Off-State Output Current V
CC
CC
CC
CC
Min, I
=
Max, V
=
Min, V
=
Min, V
=
−12 mA −0.9 −1.5 V
I
=
10V 12 15 mA
O
=
−3.0V 6.5 12
O
=
10V 100 µA
O
(Inhibited Only)
Input Current A, B or C V
=
CC
Max, V
=
5.5V 1.0
I
At Maximum Inputs mA
Input Voltage D Input 2.0
Input Current HIGH A, B or C V
=
CC
Max, V
=
2.4V 40
I
Input µA
D Input 80
Input Current LOW A, B or C V
=
CC
Max, V
=
0.4V −3.0
I
Input mA
D Input −6.0
Positive Supply Current V
=
Max, 23 35 mA
CC
with Driver Enabled A & B Inputs at 0.4V,
Negative Supply Current C & D Inputs at 2.0V −34 −50 mA
with Driver Enabled
Positive Supply Current V
=
Max, 21 mA
CC
with Driver Inhibited A, B,C&DInputs
Negative Supply Current at 0.4V −17 mA
with Driver Inhibited
=
CC
5V and T
=
25˚C.
A
±
7.0V
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Switching Characteristics
=
V
CC
Symbol Parameter Conditions From To Min Typ Max Units
t
PLH
t
PHL
t
PLH
t
PHL
=
±
5V, T
25˚C
A
(Input) (Output)
Propagation Delay Time, LOW to HIGH C
Propagation Delay Time, HIGH to LOW R
=
40 pF, A or B 1 or 2 9.0 15 ns
L
=
50Ω 9.0 15 ns
L
Propagation Delay Time, LOW to HIGH See Test Circuit C or D 1 or 2 16 25 ns
Propagation Delay Time, HIGH to LOW 13 25 ns
The pulse generators have the following characteristics:
=
=
t
r
C
L
For simplicity, only one channel and the inhibitor connections are shown.
±
t
10 ns
f
includes probe and jib capacitance.
5.0 ns, t
=
500 ns, PRR=1.0 MHz, t
w1
=
1.0 µs, PRR=500 kHz, Z
W2
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
DS009619-3
=
50Ω.
O
DS009619-4
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