DS75110AN [NSC]
Dual Line Drivers; 双线路驱动器
| 型号： | DS75110AN |
| 厂家： | 
National Semiconductor |
| 描述： | Dual Line Drivers |
| 文件： | 总7页 (文件大小：310K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
January 1996
DS75110A
Dual Line Drivers
General Description
Features
n Improved stability over supply voltage and temperature
ranges
The DS75110A is a dual line driver with independent chan-
nels, common supply and ground terminals featuring con-
stant current outputs. These drivers are designed for opti-
mum performance when used with the DS75107, DS75108
line receivers.
n Constant current, high impedance outputs
n High speed: 15 ns max propagation delay
n Standard supply voltages
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.
n Inhibitor available for driver selection
n High common mode output voltage range
(−3.0V to 10V)
Separate or common control inputs are provided for in-
creased 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, IO(Off), is specified so that minimum line
loading is induced. This is highly desirable in system applica-
tions using party line data communications.
n TTL input compatibility
Connection Diagram
Function Table
Inputs
Outputs
14–Lead Dual-In-Line Package
and SO-14 Package
Logic
Inhibitor
1
X
X
L
2
X
X
X
L
A/B
INH
X
A1/B1 A2/B2
L
X
H
H
H
Off
Off
Off
Off
On
Off
Off
On
On
Off
L
H
X
H
H
H
H
=
=
H
L
High
Low
=
X
Don’t Care
DS009619-1
Top View
Order Number DS75110AM or DS75110AN
See NS Package Number M14A or N14A
© 1999 National Semiconductor Corporation
DS009619
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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.
Molded DIP and SO-14
(Soldering, 10 sec.)
265˚C
Maximum Power Dissipation (Note 1) at 25˚C
Molded Package
1040 mW
930 mW
SO Package
Storage Temperature Range
±
Suppy Voltage
7.0V
5.5V
Ceramic DIP
−65˚C to +175˚C
−65˚C to +150˚C
Input Voltage (Any Input)
Output Voltage (Any Output)
Molded DIP and SO-14
Lead Temperature
−5.0V to +12V
Ceramic DIP (Soldering, 60 sec.)
300˚C
Recommended Operating Conditions
DS75110A
Units
Min
4.75
−4.75
0
Typ
5.0
Max
5.25
−5.25
10
Positive Supply Voltage (V+)
Negative Supply Voltage (V−)
V
V
−5.0
Positive Common Mode Voltage (VCM+
)
V
Negative Common Mode Voltage (VCM−
Operating Temperature (TA)
)
0
−3.0
70
V
0
25
˚C
Note 1: Derate molded DIP package 8.3 mW/˚C above 25˚C, derate SO package 7.5 mW/˚C above 25˚C.
Electrical Characteristics (Notes 3, 4)
Over recommended operating temperature range, unless otherwise specified.
Symbol
VIH
Parameter
Input Voltage HIGH
Conditions
Min
Typ
Max
Units
V
2.0
VIL
Input Voltage LOW
Input Clamp Voltage
On-State
0.8
−1.5
15
V
=
=
VIC
VCC Min, II −12 mA
−0.9
12
V
=
=
IO(On)
VCC Max, VO 10V
mA
=
=
Output Current
Off-State Output Current
(Inhibited Only)
Input Current
VCC Min, VO −3.0V
6.5
12
=
=
IO(Off)
VCC Min, VO 10V
100
1.0
µA
mA
µA
= =
VCC Max, VI 5.5V
II
A, B or C
Inputs
At Maximum
Input Voltage
D Input
A, B or C
Input
2.0
40
= =
VCC Max, VI 2.4V
IIH
Input Current HIGH
D Input
A, B or C
Input
80
=
=
IIL
Input Current LOW
VCC Max, VI 0.4V
−3.0
mA
mA
mA
mA
mA
D Input
−6.0
35
=
I+(On)
I−(On)
I+(Off)
I−(Off)
Positive Supply Current
with Driver Enabled
VCC Max,
23
−34
21
A & B Inputs at 0.4V,
C & D Inputs at 2.0V
Negative Supply Current
with Driver Enabled
−50
=
Positive Supply Current
with Driver Inhibited
VCC Max,
A, B, C & D Inputs
at 0.4V
Negative Supply Current
with Driver Inhibited
−17
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.
=
=
25˚C.
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
5V and T
CC
A
Note 4: When using only one channel of the line drivers, the other channel should be inhibited and/or its outputs grounded.
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2
Switching Characteristics
=
=
5V, TA 25˚C
±
VCC
Symbol
Parameter
Conditions
From
(Input)
A or B
To
Min Typ Max Units
(Output)
1 or 2
=
tPLH
tPHL
tPLH
tPHL
Propagation Delay Time, LOW to HIGH
Propagation Delay Time, HIGH to LOW
Propagation Delay Time, LOW to HIGH
Propagation Delay Time, HIGH to LOW
CL 40 pF,
9.0
9.0
16
15
15
25
25
ns
ns
ns
ns
=
RL 50Ω
See Test Circuit
C or D
1 or 2
13
DS009619-3
The pulse generators have the following characteristics:
=
=
=
=
=
=
=
50Ω.
O
±
t
t
10 ns 5.0 ns, t
500 ns, PRR 1.0 MHz, t
1.0 µs, PRR 500 kHz, Z
r
f
w1
W2
C
includes probe and jib capacitance.
L
For simplicity, only one channel and the inhibitor connections are shown.
FIGURE 1. AC Test Circuit
DS009619-4
FIGURE 2. AC Waveforms
3
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Equivalent Circuit
DS009619-2
FIGURE 3. Equivalent Circuit
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4
Typical Applications
DS009619-5
FIGURE 4. Simplex Operation
DS009619-6
All drivers are DS75110A. Receivers are DS75107 or DS75108. Twisted-pair or coaxial transmission line should be used for minimum noise and cross talk.
When only one driver in a package is being used, the outputs of the other driver should either be grounded or inhibited to reduce power dissipation.
FIGURE 5. Half-Duplex Operation
5
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Physical Dimensions inches (millimeters) unless otherwise noted
Molded Surface Mount Package (M)
Order Number DS75110AM
NS Package Number M14A
Molded Dual-In-Line Package (N)
Order Number DS75110AN
NS Package Number N14A
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6
Notes
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into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
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