Datasheet

9Maxim Integrated
40Mbps, +3.3V, RS-485 Half-Duplex
Transceivers
MAX14840E/MAX14841E
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, T
A
= +25NC, unless otherwise noted.)
RECEIVER INPUT CAPACITANCE
vs. FREQUENCY
MAX14840E toc16
FREQUENCY (kHz)
CAPACITANCE (pF)
10,0001000
10
20
30
40
50
60
70
0
100 100,000
DRIVER/RECEIVER
PROPAGATION DELAY
MAX14840E toc15
DI
5V/div
A/B
2V/div
RO
5V/div
10ns/div
RECEIVER PROPAGATION DELAY
vs. TEMPERATURE
MAX14840E toc14
TEMPERATURE (°C)
RECEIVER PROPAGATION DELAY (ns)
5
10
15
20
25
0
11085603510-15-40 125
C
L
= 50pF
t
RPLH
t
RPHL
DRIVER OUTPUT TRANSITION SKEW
(t
DSKEW
) vs. TEMPERATURE
MAX14840E toc13
TEMPERATURE (°C)
DRIVER OUTPUT TRANSITION SKEW (ns)
1
2
3
4
0
11085603510-15-40 125
R
L
= 54I, C
L
= 50pF
DRIVER OUTPUT RISE AND FALL TIME
vs. TEMPERATURE
MAX14840E toc12
TEMPERATURE (°C)
TIME (ns)
2
4
6
8
10
0
11085603510-15-40 125
R
L
= 54I, C
L
= 50pF
FALL TIME
RISE TIME
DIFFERENTIAL DRIVER SKEW (t
DSKEW
)
vs. TEMPERATURE
MAX14840E toc11
TEMPERATURE (°C)
DRIVER OUTPUT SKEW (ns)
0.5
1.0
1.5
2.0
0
11085603510-15-40 125
R
L
= 54I, C
L
= 50pF
DRIVER PROPAGATION DELAY
vs. TEMPERATURE
MAX14840E toc10
TEMPERATURE (°C)
DRIVER PROPAGATION DELAY (ns)
5
10
15
20
25
0
11085603510-15-40 125
R
L
= 54I, C
L
= 50pF
t
DPLH
t
DPHL