NTE2631
Integrated Circuit
Quad Differential Line Driver
Functional Description:
The NTE2631 is a quad differential line driver constructed using Advanced LowPower Schottky
processing in a 16Lead DIP type package designed for digital data transmission over balanced lines.
This device meets all the requirements of EIA standard RS422 and federal standard 1020 and is
designed to provide unipolar differential drive to twistedpair or parallelwire transmission lines.
The NTE2631 provides an enable and disable function common to all four drivers and features
3state outputs and logical ORed complemtary enable inputs. The inputs are all LS cxompatible
and are all one unit load.
Features:
D
2.0ns Output Skew Typical
D
Operation from Single +5V Supply
D
Output won't Load Line when V
CC
= 0
D
Four Line Drivers in One Package for Maximum Package Density
D
Output ShortCircuit Protection
D
Complementary Outputs
D
Meets the Requirements of EIA Standard RS422
D
High Output Drive Capability for 100
Terminated Transmission Lines
D
Advanced LowPower Schottky Processing
Absolute Maximum Ratings: (above which the useful life may be impaired)
Supply Voltage
7.0V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage
7.0V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage
5.5V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range
65
C to +165
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (V
CC
= 5V
5%, T
A
= 0
to +70
C, Note 1 unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Output HIGH Voltage
V
OH
V
CC
= Min, I
OH
= 20mA
2.5
3.2
V
Output LOW Voltage
V
OL
V
CC
= Min, I
OL
= 20mA
0.32
0.5
V
Input HIGH Voltage
V
IH
V
CC
= Min
2.0
V
Input LOW Voltage
V
IL
V
CC
= Max
0.8
V
Input LOW Current
I
IL
V
CC
= Max, V
IN
= 0.4V
0.20
0.36
mA
Input HIGH Current
I
IH
V
CC
= Max, V
IN
= 2.7V
0.5
20
A
Input Reverse Current
I
I
V
CC
= Max, V
IN
= 7.0V
0.001
0.1
mA
OffState (High Impedance)
I
O
V
CC
= Max, V
O
= 5.5V
0.5
20
A
Output Current
V
CC
= Max
,
V
O
= 0.5V
0.5
20
A
Input Clamp Voltage
V
I
V
CC
= Min, I
IN
= 18mA
0.8
1.5
V
Output Short Circuit Current
I
SC
V
CC
= Max
30
60
150
mA
Power Supply Current
I
CC
V
CC
= Max, all outputs disabled
60
80
mA
Input to Output
t
PLH
V
CC
= 5V, T
A
= +25
C, Load = Note 2
12
20
ns
t
PHL
12
20
ns
Output to Output
SKEW
2.0
6.0
ns
Enable to Output
t
LZ
V
CC
= 5V, T
A
= +25
C, C
L
= 10pF
23
35
ns
t
HZ
17
30
ns
t
ZL
V
CC
= 5V, T
A
= +25
C, Load = Note 2
35
45
ns
t
ZH
30
40
ns
Note 1. All typical values are V
CC
= 5V, T
A
= +25
C.
Note 2. C
L
= 30pF, V
IN
= 1.3V to V
OUT
= 1.3V, V
PULSE
= 0V to +3.0V.
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