Datasheet
SN75ALS199
QUADRUPLE DIFFERENTIAL LINE RECEIVER
SLLS046C – JANUARY 1989 – REVISED MAY 1995
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of common-mode input voltage, supply
voltage, and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP
†
MAX UNIT
V
IT+
Positive-going input threshold voltage 300 mV
V
IT–
Negative-going input threshold voltage –300
‡
mV
V
hys
Hysteresis voltage (V
IT+
– V
IT–
) 120 mV
V
IK
Enable-input clamp voltage I
I
= –18 mA –1.5 V
V
OH
High-level output voltage V
ID
= 300 mV, I
OH
= – 400 µA 2.7 3.6 V
V
OL
Low level out
p
ut voltage
V
ID
= 300 mV
I
OL
= 8 mA
0.45
V
V
OL
Lo
w-
le
v
el
o
u
tp
u
t
v
oltage
V
ID
= –
300
mV
I
OL
= 16 mA
0.5
V
I
OZ
High im
p
edance state out
p
ut current
V
IL
= 0.8 V, V
ID
= – 3 V,
V
O
= 2.7 V
20
µA
I
OZ
High
-
impedance
-
state
o
u
tp
u
t
c
u
rrent
V
IL
= 0.8 V, V
IO
= 3 V,
V
O
= 0.5 V
–20
µ
A
I
I
Line in
p
ut current
Other input at 0 V,
V
I
= 15 V
0.7 1.2
mA
I
I
Line
inp
u
t
c
u
rrent
,
See Note 3
V
I
= –15 V
–1 –1.7
mA
I
IH
High level enable in
p
ut current
V
IH
= 2.7 V
20
µA
I
IH
High
-
le
v
el
enable
-
inp
u
t
c
u
rrent
V
IH
= 5.25 V
100
µ
A
I
IL
Low-level enable-input current V
IL
= 0.4 V –100 µA
Input resistance 12 18 kΩ
I
OS
Short-circuit output current
§
V
ID
= 3 V, V
O
= 0 –15 –78 –130 mA
I
CC
Supply current Outputs disabled 22 35 mA
†
All typical values are at V
CC
= 5 V, T
A
= 25°C.
‡
The algebraic convention, in which the less positive limit is designated minimum, is used in this data sheet for threshold voltage levels only.
§
Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
NOTE 3: Refer to ITU Recommendations V.10 and V.11 for exact conditions.
switching characteristics, V
CC
= 5 V, T
A
= 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
PLH
Propagation delay time, low- to high-level output
V
ID
= 0 V to 3 V, C
L
= 15 pF,
15 22
ns
t
PHL
Propagation delay time, high- to low-level output
ID
,
See Figure 2
L
,
15 22
ns
t
PZH
Output enable time to high level
C
L
=15
p
F
See Figure 3
13 25
ns
t
PZL
Output enable time to low level
C
L
=
15
pF
,
See
Fig
u
re
3
11 25
ns
t
PHZ
Output disable time from high level
C
L
=15
p
F
See Figure 3
13 25
ns
t
PLZ
Output disable time from low level
C
L
=
15
pF
,
See
Fig
u
re
3
15 22
ns