MAX1487CSA Datasheet, PDF (5/17 Pages) Maxim Integrated Products – Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers

MAX481/MAX483/MAX485
MAX487–MAX491/MAX1487
Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
NOTES FOR ELECTRICAL/SWITCHING CHARACTERISTICS
Note 1: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device
ground unless otherwise specified.
Note 2: All typical specifications are given for V_CC = 5V and T_A = +25°C.
Note 3: Supply current specification is valid for loaded transmitters when DE = 0V.
Note 4: Applies to peak current. See Typical Operating Characteristics.
Note 5: The MAX481/MAX483/MAX487 are put into shutdown by bringing RE high and DE low. If the inputs are in this state for less
than 50ns, the parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts are
guaranteed to have entered shutdown. See Low-Power Shutdown Mode (MAX481/MAX483/MAX487) section.
__________________________________________Typical Operating Characteristics
(V_CC = 5V, T_A = +25°C, unless otherwise noted.)
OUTPUT CURRENT vs.
RECEIVER OUTPUT LOW VOLTAGE
45
40
35
30
25
20
15
10
5
0
0
0.5 1.0 1.5 2.0 2.5
OUTPUT LOW VOLTAGE (V)
OUTPUT CURRENT vs.
RECEIVER OUTPUT HIGH VOLTAGE
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT HIGH VOLTAGE (V)
RECEIVER OUTPUT HIGH VOLTAGE vs.
TEMPERATURE
4.8
4.6
I_RO = 8mA
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
RECEIVER OUTPUT LOW VOLTAGE vs.
TEMPERATURE
0.9
0.8
I_RO = 8mA
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
DRIVER OUTPUT CURRENT vs.
DIFFERENTIAL OUTPUT VOLTAGE
90
80
70
60
50
40
30
20
10
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
DIFFERENTIAL OUTPUT VOLTAGE (V)
DRIVER DIFFERENTIAL OUTPUT VOLTAGE
vs. TEMPERATURE
2.4
2.3
R = 54Ω
2.2
2.1
2.0
1.9
1.8
1.7
1.6
1.5
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
Maxim Integrated
5