MAX490ESA+T

MAX490ESA+T is a full duplex, low-power transceiver for RS-485 and RS422 communication. This transceiver draws between 120µA and 500µA of supply current when unloaded or fully loaded with disabled drivers. 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 the input is an open circuit. It is used in applications such as low-power RS-485 transceivers, low-power RS-422 transceivers, level translators, transceivers for EMI-sensitive applications, and industrial-control local area networks.

• 2.5Mbps data rate, 32 number of receivers on the bus
• 300μA typ quiescent current at (VCC = 5V ±5%)
• Input current is ±2µA maximum at (VCC = 5V ±5%)
• Receiver short-circuit current is 95mA maximum at (0V ≤ VO ≤ VCC)
• Receiver input hysteresis is 70mV typical at (VCM = 0V, VCC = 5V ±5%)
• Driver rise or fall time is 15ns typical at (RDIFF = 54ohm, CL1 = CL2 = 100pF)
• Differential receiver skew is 13ns typical at (RDIFF = 54ohm, CL1 = CL2 = 100pF)
• Operating temperature range from -40°C to +85°C
• 8-lead SO package

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party