DS3691 [NSC]
(RS-422/RS-423) Line Drivers with TRI-STATE Outputs; （ RS - 422 / RS - 423 ）与三态输出线路驱动器
| 型号： | DS3691 |
| 厂家： | 
National Semiconductor |
| 描述： | (RS-422/RS-423) Line Drivers with TRI-STATE Outputs |
| 文件： | 总10页 (文件大小：278K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
July 1998
DS1691A/DS3691
(RS-422/RS-423) Line Drivers with TRI-STATE® Outputs
General Description
Features
n Dual RS-422 line driver with mode pin low, or quad
RS-423 line driver with mode pin high
n TRI-STATE outputs in RS-422 mode
n Short circuit protection for both source and sink outputs
n Outputs will not clamp line with power off or in
TRI-STATE
The DS1691A/DS3691 are low power Schottky TTL line driv-
ers designed to meet the requirements of EIA standards
RS-422 and RS-423. They feature 4 buffered outputs with
high source and sink current capability with internal short cir-
cuit protection. A mode control input provides a choice of op-
eration either as 4 single-ended line drivers or 2 differential
line drivers. A rise time control pin allows the use of an exter-
nal capacitor to slow the rise time for suppression of near
end crosstalk to other receivers in the cable. Rise time ca-
pacitors are primarily intended for waveshaping output sig-
nals in the single-ended driver mode. Multipoint applications
in differential mode with waveshaping capacitors is not al-
lowed.
n 100Ω transmission line drive capability
n Low ICC and IEE power consumption
=
=
I
RS-422: ICC 9 mA/driver typ
RS-423: ICC 4.5 mA/driver typ:
=
2.5 mA/driver typ
EE
n Low current PNP inputs compatible with TTL, MOS and
CMOS
n Pin compatible with AM26LS30
With the mode select pin low, the DS1691A/DS3691 are
dual-differential line drivers with TRI-STATE outputs. They
±
feature 10V output common-mode range in TRI-STATE
±
mode and 0V output unbalance when operated with 5V
supply.
Connection Diagrams
With Mode Select LOW
(RS-422 Connection)
With Mode Select HIGH
(RS-423 Connection)
DS005783-2
DS005783-1
Top View
Top View
Ordering Information
Order Number
Package Type
SO Package
Molded DIP
NS Package Number
DS3691M
M16A
N16E
DS3691N
For Complete Military Product Specifications, refer to the appropriate SMD or MDS.
DS1691AJ/883 Ceramic DIP J16A
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1998 National Semiconductor Corporation
DS005783
www.national.com
Absolute Maximum Ratings (Note 2)
Operating Conditions
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Min
Max
Units
Supply Voltage
DS1691A
Supply Voltage
VCC
VEE
4.5
5.5
V
V
VCC
7V
−4.5
−5.5
VEE
−7V
DS3691
VCC
Maximum Power Dissipation (Note 1) at 25˚C
Cavity Package
4.75
5.25
V
V
1509 mW
1476 mW
1051 mW
15V
VEE
−4.75
−5.25
Molded DIP Package
SO Package
Temperature (TA)
DS1691A
DS3691
−55
0
+125
+70
˚C
˚C
Input Voltage
±
Output Voltage (Power OFF)
15V
Note 1: Derate cavity package 10.1 mW/˚C above 25˚C; derate molded DIP
package 11.9 mW/˚C above 25˚C. Derate SO package 8.41 mW/˚C above
25˚C.
Storage Temperature
−65˚C to + 150˚C
Lead Temperature
(Soldering, 4 seconds)
260˚C
DC Electrical Characteristics (Notes 3, 4, 5, 6)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
RS-422 CONNECTION, VEE CONNECTION TO GROUND, MODE SELECT ≤ 0.8V
VIH
VIL
IIH
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
2
V
V
0.8
40
=
VIN 2.4V
1
µA
µA
µA
V
VIN ≤ 15V
10
100
−200
−1.5
6.0
=
IIL
Low Level Input Current
Input Clamp Voltage
Differential Output Voltage
VA,B
VIN 0.4V
−30
=
VI
I
−12 mA
IN
= ∞
=
VO
VO
VT
VT
RL
VIN 2V
3.6
−3.6
2.4
V
=
VIN 0.8V
−6.0
V
=
=
Differential Output Voltage
VA,B
RL 100Ω
VIN 2V
2
V
=
VCC ≥ 4.75V
VIN 0.8V
−2
−2.4
2.5
V
=
V
OS, VOS
Common-Mode Offset
Voltage
RL 100Ω
3
V
=
|VT| − | VT
|
Difference in Differential
Output Voltage
RL 100Ω
0.05
0.05
4.8
0.4
0.4
V
V
=
RL 100Ω
|VOS| − | VOS
|
Difference in Common-
Mode Offset Voltage
=
VSS
|VT − VT
|
R
100Ω, VCC ≥ 4.75V
4.0
V
V
L
=
±
10
VCMR
Output Voltage Common-
Mode Range
VDISABLE 2.4V
=
=
IXA
IXB
IOX
Output Leakage Current
Power OFF
VCC 0V
VCMR 10V
100
−100
100
µA
µA
=
VCMR −10V
=
TRI-STATE Output Current
VCC Max
VCMR ≤ 10V
µA
=
VEE 0V and −5V
VCMR ≥ −10V
−100
150
µA
=
=
ISA
ISB
ICC
Output Short Circuit Current
Output Short Circuit Current
Supply Current
VIN 0.4V
VOA 6V
80
−80
−80
80
mA
mA
mA
mA
mA
=
VOB 0V
−150
−150
150
=
=
VOA 0V
VIN 2.4V
=
VOB 6V
18
30
www.national.com
2
AC Electrical Characteristics (Note 6)
=
TA 25˚C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
=
=
RS-422 CONNECTION, VCC 5V, MODE SELECT 0.8V
=
=
tr
Output Rise Time
RL 100Ω, CL 500 pF (Figure 1 )
120
120
120
120
250
180
180
250
200
200
200
200
350
300
300
350
ns
ns
ns
ns
ns
ns
ns
ns
= =
RL 100Ω, CL 500 pF (Figure 1 )
tf
Output Fall Time
= =
RL 100Ω, CL 500 pF (Figure 1 )
tPDH
tPDL
tPZL
tPZH
tPLZ
tPHZ
Output Propagation Delay
Output Propagation Delay
TRI-STATE Delay
TRI-STATE Delay
TRI-STATE Delay
TRI-STATE Delay
=
=
RL 100Ω, CL 500 pF (Figure 1 )
=
=
=
RL 450Ω, CL 500 pF, CC 0 pF (Figure 4 )
=
=
=
RL 450Ω, CL 500 pF, CC 0 pF (Figure 4 )
=
=
=
RL 450Ω, CL 500 pF, CC 0 pF (Figure 4 )
=
=
=
RL 450Ω, CL 500 pF, CC 0 pF (Figure 4 )
DC Electrical Characteristics (Notes 3, 4, 5, 6)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
=
|V EE|, MODE SELECT ≥ 2V
RS-423 CONNECTION, |VCC
|
VIH
VIL
IIH
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
2
V
V
0.8
40
=
VIN 2.4V
1
µA
µA
µA
V
VIN ≤ 15V
10
100
−200
−1.5
6.0
=
IIL
Low Level Input Current
Input Clamp Voltage
Output Voltage
VIN 0.4V
−30
=
VI
IIN −12 mA
= ∞
=
VO
RL
, (Note 7)
VIN 2V
4.0
−4.0
3.6
4.4
−4.4
4.1
−4.1
0.02
2
V
=
VO
VCC ≥ 4.75V
VIN 0.4V
−6.0
V
=
=
VT
Output Voltage
RL 450Ω
VIN 2.4V
V
=
VT
VCC ≥ 4.75V
VIN 0.4V
−3.6
V
=
V
V
=
=
L
|VT| − | VT
|
Output Unbalance
|V
|
|VEE
|
4.75V, R
450Ω
0.4
100
V
CC
+
=
=
=
=
IX
Output Leakage Power OFF
Output Leakage Power OFF
Output Short Circuit Current
Output Short Circuit Current
Slew Control Current
VCC
VCC
0V
0V
VO 6V
µA
µA
mA
mA
µA
mA
mA
EE
EE
−
=
=
IX
VO −6V
−2
−100
−150
150
+
=
=
IS
VO 0V
VIN 2.4V
−80
80
−
=
=
VIN 0.4V
IS
VO 0V
±
ISLEW
ICC
140
18
=
=
= ∞
= ∞
Positive Supply Current
Negative Supply Current
V
V
0.4V, RL
0.4V, RL
30
IN
IN
IEE
−10
−22
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 the −55˚C to +125˚C temperature range for the DS1691A and across the 0˚C to +70˚C range for
=
=
25˚C. V
CC
the DS3691. All typicals are given for V
5V and T
and V as listed in operating conditions.
EE
CC
A
Note 4: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to ground unless otherwise specified.
Note 5: Only one output at a time should be shorted.
Note 6: Symbols and definitions correspond to EIA RS-422 and/or RS-423 where applicable.
Note 7: At −55˚C, the output voltage is +3.9V minimum and −3.9V minimum.
AC Electrical Characteristics (Note 6)
=
TA 25˚C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
=
=
RS-423 CONNECTION, VCC 5V, VEE −5V, MODE SELECT 2.4V
=
=
=
tr
Rise Time
RL 450Ω, CL 500 pF, CC 0 (Figure 2 )
120
120
3.0
300
300
ns
ns
= = =
RL 450Ω, CL 500 pF, CC 0 (Figure 2 )
tf
Fall Time
=
=
=
tr
Rise Time
RL 450Ω, CL 500 pF CC 50 pF (Figure 3 )
µs
=
=
=
tf
Fall Time
RL 450Ω, CL 500 pF CC 50 pF (Figure 3 )
3.0
µs
=
=
=
trc
Rise Time Coefficient
RL 450Ω, CL 500 pF, CC 50 pF (Figure 3 )
0.06
µs/pF
3
www.national.com
AC Electrical Characteristics (Note 6) (Continued)
=
TA 25˚C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
=
=
RS-423 CONNECTION, VCC 5V, VEE −5V, MODE SELECT 2.4V
=
=
=
tPDH
tPDL
Output Propagation Delay
Output Propagation Delay
RL 450Ω, CL 500 pF, CC 0 (Figure 2 )
180
180
300
300
ns
ns
=
=
=
RL 450Ω, CL 500 pF, CC 0 (Figure 2 )
AC Test Circuits and Switching Time Waveforms
DS005783-4
DS005783-3
FIGURE 1. Differential Connection
DS005783-5
DS005783-6
FIGURE 2. RS-423 Connection
www.national.com
4
AC Test Circuits and Switching Time Waveforms (Continued)
DS005783-7
DS005783-8
FIGURE 3. Rise Time Control for RS-423
DS005783-10
DS005783-9
FIGURE 4. TRI-STATE Delays
Switching Waveforms
DS005783-11
FIGURE 5. Typical Output Voltage
5
www.national.com
Truth Table
Operation
Inputs
Outputs
Mode
A (D)
B (C)
A (D)
B (C)
RS-422
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
TRI-STATE
TRI-STATE
1
0
TRI-STATE
TRI-STATE
RS-423
0
0
1
1
0
1
0
1
Typical Application Information
Fully Loaded RS-422 Interface
DS005783-13
RS-422 Point to Point Application
DS005783-14
Fully Loaded RS-423 Interface
DS005783-15
www.national.com
6
Typical Application Information (Continued)
Differential Application with Rise Time Control
DS005783-16
*
Note: Controlled edge allows longer stub lengths. Multiple Drivers are NOT allowed.
Dual RS-423 Inverting Driver
DS005783-17
Typical Rise Time Control Characteristics (RS-423 Mode)
Rise Time vs External Capacitor
DS005783-12
7
www.national.com
8
Physical Dimensions inches (millimeters) unless otherwise noted
Ceramic Dual-In-Line Package (J)
Order Number DS1691AJ/883
NS Package Number J16A
SO Package (M)
Order Number DS3691M
NS Package Number M16A
9
www.national.com
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Molded Dual-In-Line Package (N)
Order Number DS3691N
NS Package Number N16E
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VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI-
CONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or sys-
tems which, (a) are intended for surgical implant into
the body, or (b) support or sustain life, and whose fail-
ure 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 in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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Corporation
Americas
Tel: 1-800-272-9959
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