ADM3485EARZ EIA RS-485/RS-422 Transceiver Model Information

• Product Summary:
• Device Type: ±15 kV ESD-Protected, 3.3 V, 12 Mbps, EIA RS-485/RS-422 Transceiver
• Part Number: ADM3485EARZ
• Key Features:TIA/EIA RS-485/RS-422 compliant±15 kV ESD protection on RS-485 input/output pins12 Mbps data rateHalf-duplex transceiverUp to 32 nodes on the busReceiver open-circuit, fail-safe designLow power shutdown currentOutputs high-Z when disabled or powered offCommon-mode input range: −7 V to +12 VThermal shutdown and short-circuit protectionIndustry-standard 75176 pinoutAvailable in an 8-lead narrow SOIC package
• Applications:
• Power/energy metering
• Telecommunications
• EMI-sensitive systems
• Industrial control
• Local area networks
• Pin Configuration and Function Descriptions:
• RO (1): Receiver Output
• RE (2): Receiver Output Enable
• DE (3): Driver Output Enable
• DI (4): Driver Input
• GND (5): Ground Connection
• A (6): Noninverting Receiver Input A/Driver Output A
• B (7): Inverting Receiver Input B/Driver Output B
• VCC (8): Power Supply
• Electrical Characteristics:
• Differential Output Voltage (VOD): 2.0 V (RL = 100 Ω), 1.5 V (RL = 54 Ω or 60 Ω)
• Common-Mode Output Voltage (VOC): 3 V
• Input Low Voltage (VIL): 0.8 V
• Input High Voltage (VIH): 2.0 V
• Logic Input Current (IIN1): ±2 µA
• Differential Input Threshold Voltage (VTH): –0.2 V to +0.2 V
• Input Resistance (RIN): 12 kΩ
• Output Voltage High (VOH): VCC – 0.4 V
• Output Voltage Low (VOL): 0.4 V
• Short-Circuit Output Current (IOSR): ±8 mA to ±60 mA
• Absolute Maximum Ratings:
• VCC to GND: –0.3 V to +6 V
• Digital Input/Output Voltage (DE, RE, DI): –0.3 V to +6 V
• Receiver Output Voltage (RO): –0.3 V to (VCC + 0.3 V)
• Driver Output (A, B)/ Receiver Input (A, B) Voltage: −8 V to +13 V
• Operating Temperature Range: –40°C to +85°C
• Storage Temperature Range: –65°C to +150°C
• Thermal Resistance:
• θJA (8-Lead SOIC_N): 158 °C/W
• ESD Protection:
• A, B Pins: ±15 kV Human Body Model
• All Pins Except A, B: ±4 kV Human Body Model
• Ordering Guide:
• Model: ADM3485EARZ
• Temperature Range: –40°C to +85°C
• Package Description: 8-Lead Standard Small Outline Package [SOIC_N]
• Package Option: R-8