MAX22026FAWA+

MAX22026FAWA+ is a compact isolated RS-485/RS-422 transceiver that provides 3.5KVRMS of digital galvanic isolation between the cable side (RS-485/RS-422 driver/ receiver-side) and the UART side of the device. Isolation improves communication by breaking ground loops and reduces noise when there are large differences in ground potential between ports. It features proprietary auto direction control making this device ideal for applications such as isolated RS-485 ports, where the driver input is used in conjunction with the driver-enable signal to drive the differential bus. It is approved by UL according to UL1577, cUL according to CSA bulletin 5A. It is used in applications such as utility meters, industrial automation equipment, programmable logic controllers, and HVAC.

• Fully isolated half-duplex RS-485/RS-422 transceiver
• ±10kV ESD (HBM) on driver outputs/receiver inputs
• Receiver input short or open events, VDDA supply voltage range from 1.71V to 5.5V
• Withstands 3.5KVRMS isolation voltage for 60 seconds (VISO)
• Withstands 630VPEAK maximum repetitive peak isolation voltage (VIORM)
• Continuously withstands 445VRMS maximum working-isolation voltage (VIOWM)
• Supply current (IDDA) is 0.39mA typical at (VDDA – VGNDA = 1.71V to 5.5V)
• Input capacitance is 2pF typical at (VDDA – VGNDA = 1.71V to 5.5V)
• High RXD in driver enable state, 16Mbps driver speed, fail-safe receiver
• Operating temperature range from -40°C to +85°C, 8-pin wide SOIC package

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