±15kV ESD-Protected, Quad,
Low-Power RS-232 Line Receiver
__________________________________________Typical Operating Characteristics
(V
CC
= 5V, T
A
= +25°C, unless otherwise noted.)
MAX1489E
PROPAGATION DELAY vs. TEMPERATURE
MAX1489E-01
PROPAGATION DELAY SKEW
vs. TEMPERATURE
MAX1489E-02
NOISE PULSE REJECTION
V
IN
= (V
IL
+ V
IH
) ± PULSE AMP,
2
2
f = 300kHz
MAX1489E-03
2.2
800
PROPAGATION DELAY SKEW (ns)
8
INPUT PULSE AMPLITUDE (Vp-p)
PROPAGATION DELAY (µs)
1.8
600
6
1.4
t
PHL
t
PLH
400
V
CC
= 5.25V
200
V
CC
= 5V
V
CC
= 4.75V
4
1.0
2
0.6
-40
-15
10
35
60
85
TEMPERATURE (°C)
0
-40
-15
10
35
60
85
TEMPERATURE (°C)
0
0.7
1.1
1.5
1.9
2.3
2.7
INPUT PULSE WIDTH (µs)
_____________________Pin Description
3.0V
PIN
1, 4, 10,
13
2, 5, 9,
12
3, 6, 8,
11
7
14
NAME
INPUT_
N.C.
OUTPUT_
GND
V
CC
FUNCTION
Receiver Inputs
No Connect—not internally
connected
Receiver Outputs
Ground
S.G.
0V
1.5V
t
PHL
90%
t
PLH
V
OH
V
OUT
50%
50%
10%
Supply Voltage
V
OL
t
TR
V
CC
t
TR
SIGNAL
GENERATOR
(S.G.)
50pF
V
OUT
NOTE: S.G. SET TO f = 20kHz;
DUTY CYCLE = 50%;
t
R
, t
F
< 5.0ns
Figure 1. Timing Diagram
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
