Datasheet

SN55ALS194, SN75ALS194
QUADRUPLE DIFFERENTIAL LINE DRIVERS
SLLS009D – OCTOBER 1985 – REVISED MAY 1995
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS
†
MIN TYP
‡
MAX UNIT
V
IK
Input clamp voltage V
CC
= MIN, I
I
= –18 mA – 1.5 V
V
OH
High level out
p
ut voltage
V
CC
= MIN,
SN55ALS194 2.4
V
V
OH
High
-
le
v
el
o
u
tp
u
t
v
oltage
CC
,
I
OH
= –20 mA
SN75ALS194 2.5
V
V
OL
Low-level output voltage V
CC
= MIN, I
OL
= MAX 0.5 V
V
O
Output voltage I
O
= 0 0 6 V
|V
OD1
| Differential output voltage I
O
= 0 1.5 6 V
|V
OD2
|
Differential out
p
ut voltage
1/2 V
OD1
V
|V
OD2
|
Differential
o
u
tp
u
t
v
oltage
OD1
or 2
§
V
∆|V
OD
|
Change in magnitude of
differential output voltage
¶
R
L
= 100 Ω, See Figure 1
± 0.4 V
V
OC
Common-mode output voltage ± 3 V
∆|V
OC
|
Change in magnitude of
common-mode output voltage
¶
± 0.4 V
I
O
Out
p
ut current with
p
ower off
V
CC
=0
V
O
= 6 V 100
µA
I
O
O
u
tp
u
t
c
u
rrent
w
ith
po
w
er
off
V
CC
=
0
V
O
= – 0.25 V – 100
µ
A
I
V
CC
= MAX
V
O
= 2.7 V 100
I
OZ
High-impedance-state output current
V
CC
=
MAX
,
Output enables at 0.8 V
V
O
= 0.5 V – 100
µA
I
I
Input current at maximum input voltage V
CC
= MAX, V
I
= 5.5 V 100 µA
I
IH
High-level input current V
CC
= MAX, V
I
= 2.7 V 50 µA
I
IL
Low-level input current V
CC
= MAX, V
I
= 0.5 V – 200 µA
I
OS
Short-circuit output current
#
V
CC
= MAX, V
I
= 2 V –40 – 140 mA
I
CC
Supply current (all drivers) V
CC
= MAX, All outputs disabled 26 45 mA
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
‡
All typical values are at V
CC
= 5 V, TA = 25°C.
§
The minimum V
OD2
with a 100-Ω load is either 1/2 V
OD1
or 2 V, whichever is greater.
¶
∆ | V
OD
| and ∆ | V
OC
| are the changes in magnitude of V
OD
and V
OC
, respectively, that occur when the input is changed from a high level to
a low level.
#
Not more than one output should be shorted at a time, and duration of the short circuit should not exceed one second.
switching characteristics, V
CC
= 5 V, T
A
= 25°C
PARAMETER
TEST
SN55ALS194 SN75ALS194
UNIT
PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX
UNIT
t
PLH
Propagation delay time, low- to high-level output
C15F
6 13 6 13 ns
t
PHL
Propagation delay time, high- to low-level output
C
L
= 15 pF,
See Figure 2
9 14 9 14 ns
Output-to-output skew
See
Figure
2
3.5 6 3.5 6 ns
t
t(OD)
Differential output transition time
C
L
= 15 pF,
See Figure 3
8 14 8 14 ns
t
PZH
Output enable time to high level 9 12 9 12 ns
t
PZL
Output enable time to low level
C
L
= 15 pF,
12 20 12 20 ns
t
PHZ
Output disable time from high level
L
See Figure 4
9 15 9 14 ns
t
PLZ
Output disable time from low level 12 15 12 15 ns