MAX3250EAI+T

MAX3250 is a 3V to 5.5V powered, ±50V isolated EIA/TIA-232 and V.28/V.24 communications interface with high data-rate capabilities. This device is a dual die part that operates with upto ±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. It has two receivers (Rx) and two drivers (Tx) and is guaranteed to run at data rates of 250kbps while maintaining RS-232 output levels. The transceivers have a proprietary low-dropout transmitter output stage, delivering true RS-232 performance from a 3V to 5.5V supply with a dual charge pump. It is used in applications such as industrial control, programmable logic controller, point-of-sale equipment, PC-to-router connections, diagnostic ports, telecom equipment.

• FAULT output signals excessive isolated-side voltage
• Shutdown allows multiple interfaces (IrDA, RS-232, RS-485) to be connected to the same UART
• High-impedance transmitter and receiver
• Supply current in shutdown is 20µA typical at (TA = +25°C)
• Inductor less/transformer less design simplifies EMI compliance
• Low-cost replacement for opto-isolated transceivers
• Meets EIA/TIA-232 specifications down to 3V
• Supply current is 15mA typical at (TA = +25°C)
• Operating temperature is -40°C to +85°C
• Package style is 28-lead SSOP

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