MAX3250CAI+

MAX3250CAI+ is a 2 Tx/2 Rx, RS-232 transceiver. It is a 3.0V to 5.5V powered, ±50V isolated EIA/TIA-232 and V.28/V.24 communications interface with high data-rate capabilities. The MAX3250 is a dual die part that operates with up to ±50V difference between the RS-232 side and the logic side (ISOCOM to GND). This makes the device ideal for operation in noisy conditions with high common-mode voltages. This feature prevents damage to the device if RS-232 lines are inadvertently short-circuited to a +24V or ±48V power bus. The MAX3250 is powered by a single 3V to 5.5V supply on the logic side. Power is transferred from the logic side to the isolated side by ±100V external capacitors. Applications include industrial control, programmable logic controllers, point-of-sale equipment, PC-to-router connections, diagnostic ports, and telecom equipment.

• Isolation breaks ground loops due to high common mode voltages while maintaining data rate
• 250kbps guaranteed data rate, ±50V isolation
• Active-low FAULT output signals excessive isolated-side voltage
• Integration of isolation and RS-232 saves space
• Shutdown allows multiple interfaces (IrDA, RS-232, RS-485) to be connected to the same UART
• High-impedance transmitter and receiver outputs in shutdown
• Inductorless/transformerless design simplifies EMI compliance
• Low-cost replacement for opto-isolated transceivers
• 28 SSOP package
• Temperature range from 0°C to +70°C

Warnings

ESD sensitive device, take proper precaution while handling the device. 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