MAX491CSD Maxim Integrated Products, MAX491CSD Datasheet - Page 5

• Manufacturer Part Number: MAX491CSD
• Description: IC TRANS RS485/RS422 14-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX491CSD

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL
• Case: SOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: Q1657679

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
Note 2: All typical specifications are given for V
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
(V
__________________________________________Typical Operating Characteristics
CC
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.9
45
40
35
30
25
20
15
10
= 5V, T
5
0
0
-50
0
RECEIVER OUTPUT LOW VOLTAGE vs.
ground unless otherwise specified.
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.
RECEIVER OUTPUT LOW VOLTAGE
-25
A
0.5
= +25°C, unless otherwise noted.)
OUTPUT CURRENT vs.
OUTPUT LOW VOLTAGE (V)
0
TEMPERATURE (°C)
TEMPERATURE
1.0
_______________________________________________________________________________________
25
50
1.5
I
75
RO
2.0
= 8mA
100
125
2.5
Low-Power, Slew-Rate-Limited
CC
-20
-18
-16
-14
-12
-10
90
80
70
60
50
40
30
20
10
-8
-6
-4
-2
0
0
= 5V and T
1.5
0
RS-485/RS-422 Transceivers
RECEIVER OUTPUT HIGH VOLTAGE
DIFFERENTIAL OUTPUT VOLTAGE
0.5
DRIVER OUTPUT CURRENT vs.
2.0
DIFFERENTIAL OUTPUT VOLTAGE (V)
1.0
OUTPUT CURRENT vs.
OUTPUT HIGH VOLTAGE (V)
2.5
A
1.5
= +25°C.
3.0
2.0
2.5
3.5
3.0
4.0
3.5
4.5
4.0
5.0
4.5
4.6
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
4.8
1.5
-50
-50
DRIVER DIFFERENTIAL OUTPUT VOLTAGE
RECEIVER OUTPUT HIGH VOLTAGE vs.
-25
-25
vs. TEMPERATURE
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
TEMPERATURE
25
25
50
50
I
75
75
RO
R = 54Ω
= 8mA
100
100
125
125
5