DS26LS31MQML Quad High Speed Differential Line Driver
March 2006
DS26LS31MQML
Quad High Speed Differential Line Driver
General Description
The DS26LS31MQML is a quad differential line driver de-
signed for digital data transmission over balanced lines. The
DS26LS31MQML meets all the requirements of EIA Stan-
dard RS-422 and Federal Standard 1020. It is designed to
provide unipolar differential drive to twisted-pair or parallel-
wire transmission lines.
The circuit provides an enable and disable function common
to all four drivers. The DS26LS31MQML features TRI-
STATE
®
outputs and logically ANDed complementary out-
puts. The inputs are all LS compatible and are all one unit
load.
The DS26LS31 features a power up/down protection circuit
which keeps the output in a high impedance stat (TRI-
STATE) during power up or down preventing erroneous
glitches on the transmission lines.
Features
n
Operation from single 5V supply
n
Outputs won’t load line when V
CC
= 0V
n
Four line drivers in one package for maximum package
density
n
Output short-circuit protection
n
Complementary outputs
n
Meets the requirements of EIA Standard RS-422
n
Pin compatible with AM26LS31
n
Glitch free power up/down
Ordering Information
NS PART NUMBER
DS26LS31MEFQML
DS26LS31ME-SMD
DS26LS31MJFQML
DS26LS31MJ-SMD
DS26LS31MJFQMLV
DS26LS31MJ-QMLV
DS26LS31MWFQML
DS26LS31MW-SMD
DS26LS31MWFQMLV
DS26LS31MW-QMLV
DS26LS31MJ/883
DS26LS31MW/883
SMD PART NUMBER
5962F7802301Q2A
300k rd(Si)
5962-7802301Q2A
5962F7802301MEA
300k rd(Si)
5962-7802301MEA
5962F7802301VEA
300k rd(Si)
5962-7802301VEA
5962F7802301MFA
300k rd(Si)
5962-7802301MFA
5962F7802301VFA
300k rd(Si)
5962-7802301VFA
NS PACKAGE NUMBER
E20A
E20A
J16A
J16A
J16A
J16A
W16A
W16A
W16A
W16A
J16A
W16A
PACKAGE DISCRIPTION
20LD Ceramic Leadless Chip Carrier
20LD Ceramic Leadless Chip Carrier
16LD Ceramic Dual-In-Line
16LD Ceramic Dual-In-Line
16LD Ceramic Dual-In-Line
16LD Ceramic Dual-In-Line
16LD Ceramic Flatpak
16LD Ceramic Flatpak
16LD Ceramic Flatpak
16LD Ceramic Flatpak
16LD Ceramic Dual-in-line
16LD Ceramic Flatpak
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
© 2006 National Semiconductor Corporation
DS201412
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DS26LS31MQML
Logic and Connection Diagrams
20141201
Dual-In-Line Package
20141202
Top View
See NS Package E20A, J16A or W16A
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2
DS26LS31MQML
Absolute Maximum Ratings
(Note 1)
Supply Voltage
Input Voltage
Output Voltage
Output Voltage (Power OFF)
Maximum Power Dissipation at 25˚C
(Note 2)
J Package
LCC Package
W Package
Junction Temperature (T
J
)
Thermal Resistance, Junction-to-Ambient
θ
JA
J Package
LCC Package
W Package
Thermal Resistance, Junction-to-Case
θ
JC
J Package
LCC Package
W Package
ESD Tolerance
16˚C/W
19˚C/W
14˚C/W
2500V
94˚C/W derate above +25˚C at 10.6 mW/˚C
83˚C/W derate above +25˚C at 12 mW/˚C
163˚C/W derate above +25˚C at 6.1 mW/˚C
1400 mW
1600 mW
850 mW
+150˚C
7V
7V
5.5V
−0.25 to 6V
Recommended Operating
Conditions
Supply Voltage, V
CC
Temperature, T
A
4.5 V to 5.5 V
−55˚C to +125˚C
Radiation Features
DS26LS31MEFQML
DS26LS31MJFQML
DS26LS31MJFQMLV
DS26LS31MWFQML
DS26LS31MWFQMLV
300 Krads (Si)
300 Krads (Si)
300 Krads (Si)
300 Krads (Si)
300 Krads (Si)
3
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DS26LS31MQML
Quality Conformance Inspection
MIL-STD-883, Method 5005 - Group A
Subgroup
1
2
3
4
5
6
7
8A
8B
9
10
11
Description
Static tests at
Static tests at
Static tests at
Dynamic tests at
Dynamic tests at
Dynamic tests at
Functional tests at
Functional tests at
Functional tests at
Switching tests at
Switching tests at
Switching tests at
Temp (˚C)
+25
+125
-55
+25
+125
-55
+25
+125
-55
+25
+125
-55
DS26LS31M - SMD, QMLV & RH Electrical Characteristics
DC Parameters
The following conditions apply, unless otherwise specified. +V = 5V, V
CM
= 0V.
Symbol
V
IH
V
IL
V
OH
V
OL
I
IH
I
IL
I
I
I
O
V
IC
I
OS
I
CC
Parameters
Logical "1" Input Voltage
Logical "0" Input Voltage
Logical "1" Output Voltage
Logical "0" Output Voltage
Logical "1" Input Current
Logical "0" Input Current
Input Reverse Current
TRI-STATE Output Current
Input Clamp Voltage
Output Short Circuit Current
Power Supply Current
Conditions
V
CC
= 4.5V
V
CC
= 5.5V
V
CC
= 4.5V, I
OH
= -20mA
V
CC
= 4.5V, I
OL
= 20mA
V
CC
= 5.5V, V
IN
= 2.7V
V
CC
= 5.5V, V
IN
= .4V
V
CC
= 5.5V, V
IN
= 7V
V
CC
= 5.5V, V
O
= .5V
V
CC
= 5.5V, V
O
= 2.5V
V
CC
= 4.5V, I
IN
= -18mA
V
CC
= 5.5V
V
CC
= 5.5V, All Outputs
Disabled or Active
(Note 5)
Notes
(Notes 3,
4)
(Notes 3,
4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
-30
-2.0
100
-.01
2.5
.5
20
-360
.1
-20
20
-1.5
-150
80
Min
2
.8
Max
Units
V
V
V
V
uA
uA
mA
uA
uA
V
mA
mA
Sub-
groups
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
AC Parameters - Propagation Delay Time
The following conditions apply, unless otherwise specified. V
CC
= 5V, V
IN
= 1.3V to V
O
= 1.3V, V (pulse) = 0 to 3V.
Symbol
t
PLH
t
PHL
t
Skew
Parameters
Input to Output
Input to Output
Output to Output
Conditions
C
L
= 30 pF
C
L
= 30 pF
C
L
= 30 pF
Notes
(Note 4)
(Note 4)
(Note 4)
Min
Max
20
30
20
30
6
9
Unit
nS
nS
nS
nS
nS
nS
(Note 5)
Sub-
groups
9
10, 11
9
10, 11
9
10, 11
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4
DS26LS31MQML
DS26LS31M - SMD, QMLV & RH Electrical Characteristics
AC Parameters - Propagation Delay Time
The following conditions apply, unless otherwise specified. V
CC
Symbol
Parameters
Conditions
S2 Open, Enable, C
L
= 10 pF
t
PLZ
Enable to Output
S2 Open, Enable, C
L
= 10 pF
S1 Open, Enable, C
L
= 10 pF
t
PHZ
Enable to Output
S1 Open, Enable, CL = 10 pF
S2 Open, Enable, C
L
= 30 pF
t
PZL
Enable to Output
S2 Open, Enable, C
L
= 30 pF
S1 Open, Enable, C
L
= 30 pF
t
PZH
Enable to Output
S1 Open, Enable, C
L
= 30 pF
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Continued)
(Continued)
= 5V, V
IN
= 1.3V to V
O
= 1.3V, V (pulse) = 0 to 3V.
Notes
(Note 4)
Min
Max
35
53
35
53
30
45
30
45
45
68
45
68
40
60
40
60
Unit
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
(Note 5)
Sub-
groups
9
10, 11
9
10, 11
9
10, 11
9
10, 11
9
10, 11
9
10, 11
9
10, 11
9
10, 11
DC Parameters - Drift Values
The following conditions apply, unless otherwise specified. Delta calculations performed on QMLV only devices after burn-in
and at Group B5.
Symbol
V
OL
V
OH
I
CC
Parameters
Output Low Voltage
Output High Voltage
Power Supply Current
Conditions
V
CC
= 4.5, I
OL
= 20 mA
V
CC
= 4.5, I
OH
= -20 mA
V
CC
= 5.5, All outputs disabled
or active
Notes
(Note 4)
(Note 4)
(Note 4)
Min
-50
-250
-8
Max
50
250
8
Units
mV
mV
mA
Sub-
groups
1
1
1
5
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