MAX1482ESD+ Maxim Integrated Products, MAX1482ESD+ Datasheet - Page 7

• Manufacturer Part Number: MAX1482ESD+
• Description: IC TXRX RS485/RS422 LP 14-SOIC
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX1482ESD+

• 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
• Supply Voltage (max): 5.25 V
• Supply Voltage (min): 4.75 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Data Rate: 250 Kbps
• Interface: RS-485, RS-422
• Maximum Power Dissipation: 667 mW
• Minimum Operating Temperature: - 40 C
• Supply Current: 20 uA
• Operating Supply Voltage: 5 V
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 5. Driver Propagation Delays
Figure 7. Receiver Propagation Delays
_______________________________________________________Switching Waveforms
RO
A-B
V
DIFF
DI
V
-V
V
V
OH
OL
-V
ID
ID
V
3V
0V
0V
Y
Z
O
O
V
1/2 V
O
0V
1.5V
t
R
10%
O
_______________________________________________________________________________________
90%
1.5V
t
20µA,
PLH
t
PHL
V
t
SKEW =
DIFF
INPUT
= V (Y) - V (Z)
| t
PLH
OUTPUT
- t
PHL
t
PLH
t
PHL
|
t
F
90%
1
⁄
1.5V
8
0V
1.5V
-Unit-Load, Slew-Rate-Limited
10%
1/2 V
O
Figure 6. Driver Enable and Disable Times
Figure 8. Receiver Enable and Disable Times
RO
RO
RE
DE
V
Y, Z
Y, Z
V
3V
0V
CC
0V
3V
0V
0V
OL
RS-485 Transceivers
1.5V
1.5V
1.5V
1.5V
2.3V
2.3V
t
t
t
t
ZL(SHDN)
ZH(SHDN)
ZL(SHDN)
ZH(SHDN)
OUTPUT NORMALLY HIGH
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
OUTPUT NORMALLY LOW
, t
, t
, t
, t
ZL
ZH
ZL
ZH
t
t
t
HZ
t
HZ
LZ
LZ
1.5V
1.5V
V
V
V
V
OL
OH
OL
OH
+ 0.5V
- 0.5V
+ 0.5V
- 0.5V
7