ADM3074EARZ

ADM3074E is a 3.3V, low power data transceiver with ±15KV ESD protection suitable for full duplex communication on multipoint bus transmission lines. This is designed for balanced data transmission, and this comply with TIA/EIA standards: RS-485 and RS-422. The device has a ⅛ unit load receiver input impedance, which allows up to 256 transceivers on a bus. Because only one driver should be enabled at any time, the output of a disabled or powered down driver is tristated to avoid overloading the bus. The receiver inputs have a true fail-safe feature, which eliminates the need for external bias resistors and ensures a logic high output level when the inputs are open or shorted. This guarantees that the receiver outputs are in a known state before communication begins and when communication ceases. Typical applications are power/energy metering, industrial control, lighting systems, telecommunications, security systems, instrumentation.

• True fail-safe receiver inputs, reduced slew rates for low EMI
• Hot-swap input structure on DE and active-low RE pins
• Outputs high-Z when disabled or powered off, thermal shutdown and short-circuit protection
• 0.5Mbps data rate
• Slew rate limited
• Differential output voltage is 2V to VCC (at RL=100 ohm (RS-422), VCC=3.3V ± 10%, TA=TMIN to TMAX)
• Short-circuit output current is 250mA max (0V <lt/> VOUT <lt/> 12V, VCC=3.3V ± 10%, TA=TMIN to TMAX)
• Supply current is 1.5mA (no load, DE=VCC, active-low RE=0V, VCC=3.3V ± 10%, TA=TMIN to TMAX)
• 8-lead standard small outline package (SOIC-N)
• Temperature rating range from -40°C to +85°C

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