MAXIM MAX3490ESA

The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low- power transceivers for RS- 485 and RS- 422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew- rate- limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error- free data transmission at data rates up to 250kbps. The partially slew- rate- limited MAX3486 transmits up to 2.5Mbps. The MAX3485, MAX3490, and MAX3491 transmit at up to 10Mbps. Drivers are short- circuit, current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high- impedance state. The receiver input has a fail- safe feature that guarantees a logic- high output if both inputs are open circuit. The MAX3488, MAX3490, and MAX3491 feature full- duplex communication, while the MAX3483, MAX3485, and MAX3486 are designed for half- duplex communication.

• Operate from a Single 3.3V Supply - No Charge Pump!
• Interoperable with +5V Logic
• 8ns Max Skew (MAX3485/MAX3490/MAX3491)
• Slew- Rate Limited for Errorless Data Transmission (MAX3483/MAX3488)
• 2nA Low- Current Shutdown Mode (MAX3483/MAX3485/MAX3486/MAX3491)
• -7V to +12V Common- Mode Input Voltage Range
• Allows up to 32 Transceivers on the Bus
• Full- Duplex and Half- Duplex Versions Available
• Industry Standard 75176 Pinout (MAX3483/MAX3485/MAX3486)
• Current- Limiting and Thermal Shutdown for Driver Overload Protection

• Low- Power RS- 485/RS- 422 Transceivers
• Telecommunications Transceivers for EMI- Sensitive Applications
• Industrial- Control Local Area Networks