Datasheet
SN75157
DUAL DIFFERENTIAL LINE RECEIVER
SLLS084C – SEPTEMBER 1980 – REVISED MARCH 1997
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage, common-mode input
voltage, and operating free-air temperature (unless otherwise noted)
†
PARAMETER TEST CONDITIONS MIN TYP
‡
MAX UNIT
V
IT
In
p
ut threshold voltage (V
IT
and V
IT
)
–0.2 0.2
V
V
IT
Inp
u
t
threshold
v
oltage
(V
IT+
and
V
IT–
)
See Note 3 –0.4 0.4
V
V
hys
Hysteresis voltage (V
IT+
– V
IT–
) 70 mV
V
OH
High-level output voltage V
ID
= 0.2 V, I
O
= –1 mA 2.5 3.5 V
V
OL
Low-level output voltage V
ID
= –0.2 V, I
O
= 20 mA 0.35 0.5 V
I
I
In
p
ut current
V
CC
= 0 to 5.5 V,
V
I
= 10 V 1.1 3.25
mA
I
I
Inp
u
t
c
u
rrent
CC
,
See Note 4
V
I
= –10 V –1.6 –3.25
mA
I
OS
Short-circuit output current
§
V
O
= 0, V
ID
= 0.2 V –40 –75 –100 mA
I
CC
Supply current V
ID
= –0.5 V, No load 35 50 mA
†
The algebraic convention, where the less positive (more negative) limit is designated as minimum, is used in this data sheet for threshold levels
only.
‡
All typical values are at V
CC
= 5 V, T
A
= 25°C.
§
Only one output should be shorted at a time and duration of the short circuit should not exceed one second.
NOTES: 3. The expanded threshold parameter is tested with a 500-Ω resistor in series with each input.
4. The input not under test is grounded.
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
C
L
=15
p
F
See Figure 1
15 25 ns
t
PHL
Propagation delay time, high- to low-level output
C
L
=
15
pF
,
See
Fig
u
re
1
13 25 ns
PARAMETER MEASUREMENT INFORMATION
0.5 V
Input
(see Note B)
–0.5 V
Output
50% 50%
t
PLH
t
PHL
1.5 V 1.5 V
VOLTAGE WAVEFORMSTEST CIRCUIT
V
CC
+
V
CC
+
Output
392 Ω
Input
51 Ω
C
L
= 15 pF
(see Note A)
3.92 kΩ
NOTES: A. C
L
includes probe and jig capacitance.
B. The input pulse is supplied by a generator having the following characteristics: t
r
≤ 5 ns, t
f
≤ 5 ns, PRR ≤ 5 MHz, duty cycle = 50%.
Figure 1. Test Circuit and Voltage Waveforms