Datasheet

8 Maxim Integrated
40Mbps, +3.3V, RS-485 Half-Duplex
Transceivers
MAX14840E/MAX14841E
Typical Operating Characteristics
(V
CC
= +3.3V, T
A
= +25NC, unless otherwise noted.)
DRIVER OUTPUT CURRENT
vs. OUTPUT LOW VOLTAGE
MAX14840E toc09
OUTPUT LOW VOLTAGE (V)
OUTPUT CURRENT (mA)
108642
20
40
60
80
100
120
140
0
01
2
DRIVER OUTPUT CURRENT
vs. OUTPUT HIGH VOLTAGE
MAX14840E toc08
OUTPUT HIGH VOLTAGE (V)
OUTPUT CURRENT (mA)
31-1-3-5
20
40
60
80
100
0
-7 5
DIFFERENTIAL DRIVER OUTPUT VOLTAGE
vs. TEMPERATURE
MAX14840E toc07
TEMPERATURE (°C)
DIFFERENTIAL DRIVER OUTPUT VOLTAGE (V)
11085603510-15
1
2
3
4
0
-40 125
R
L
= 54I
DIFFERENTIAL DRIVER OUTPUT
VOLTAGE vs. OUTPUT CURRENT
MAX14840E toc06
I
OD
(mA)
V
OD
(V)
604020
1
2
3
4
5
0
08
0
RECEIVER OUTPUT LOW VOLTAGE
vs. OUTPUT CURRENT
MAX14840E toc05
I
RO
(mA)
V
RO
(V)
2421181512963
1
2
3
4
5
0
02
7
RECEIVER OUTPUT HIGH VOLTAGE
vs. OUTPUT CURRENT
I
RO
(mA)
V
RO
(V)
2015105
1
2
3
4
5
0
02
5
MAX14840E toc04
SUPPLY CURRENT vs. DATA RATE
MAX14840E toc03
DATA RATE (Mbps)
SUPPLY CURRENT (mA)
302010
20
40
60
80
100
0
04
0
54I LOAD
NO LOAD
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX14840E toc02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
11085603510-15
1
2
3
4
0
-40 125
RE = V
CC
DE = GND
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
MAX14840E toc01
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
1
2
3
4
0
11085603510-15-40 125
RE = GND AND DE = V
CC
,
OR RE = V
CC
AND DE = V
CC