MAX3491CSD-G002 Maxim Integrated, MAX3491CSD-G002 Datasheet - Page 12

• Manufacturer Part Number: MAX3491CSD-G002
• Description: RS-422/RS-485 Interface IC
• Manufacturer: Maxim Integrated

Specifications of MAX3491CSD-G002

• Data Rate: 10 Mbps
• Operating Supply Voltage: 3 V to 3.6 V
• Supply Current: 2.2 mA
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Input Voltage: 3 V to 3.6 V
• Maximum Power Dissipation: 800 mW
• Output Current: 20 uA
• Output Voltage: - 7.5 V to + 12.5 V
• Product: RS-422/RS-485 Combination
• Propagation Delay Time Ns: 22 ns

3.3V-Powered, 10Mbps and Slew-Rate-Limited
True RS-485/RS-422 Transceivers
Figure 15. MAX3485/MAX3490/MAX3491 Driver Propagation
Delay
Figure 17. MAX3483/MAX3488 Driver Propagation Delay
Figure 19. MAX3483/MAX3488 System Differential Voltage at
125kHz Driving 4000 ft of Cable
MAX3488/MAX3490/MAX3491
12
V
2V/div
1V/div
1V/div
5V/div
2V/div
5V/div
2V/div
1V/div
1V/div
Y
- V
RO
DI
DI
DI
Y
Z
Z
Y
Z
20ns/div
1 s/div
2 s/div
Figure 16. MAX3485/MAX3490/MAX3491 Receiver
Propagation Delay Driven by External RS-485 Device
Figure 18. MAX3483/MAX3488 Receiver Propagation Delay
Figure 20. MAX3485/MAX3490/MAX3491 System Differential
Voltage at 125kHz Driving 4000 ft of Cable
1V/div
1V/div
2V/div
V
5V/div
2V/div
5V/div
1V/div
1V/div
2V/div
Y
RO
- V
RO
B
A
RO
DI
B
A
Z
20ns/div
2 s/div
1 s/div
Maxim Integrated