Overview
The ADM3486EARZ is a 3.3 V, low-power, half-duplex transceiver designed for multipoint bus transmission lines, compliant with TIA/EIA standards RS-485 and RS-422. Developed and manufactured by Analog Devices Inc., this device is suitable for balanced data transmission and features a robust set of specifications and protections. It is available in an 8-lead narrow SOIC package, making it compact and versatile for various applications.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Supply Voltage | 3V ~ 3.6V | V | |
| Operating Temperature | -40°C ~ 85°C | °C | |
| Package Type | 8-SOIC (0.154", 3.90mm Width) | ||
| Protocol | RS422, RS485 | ||
| Data Rate | 2.5 Mbps | Mbps | |
| Number of Drivers/Receivers | 1/1 | ||
| Duplex | Half | ||
| Receiver Hysteresis | 50 mV | mV | |
| ESD Protection | ±15 kV on bus pins | kV | |
| Receiver Input Impedance | 12 kΩ | kΩ | |
| Thermal Shutdown | Yes | Prevents excessive power dissipation |
Key Features
- Low Power Consumption: The device features low power shutdown current, making it energy-efficient.
- High ESD Protection: Offers ±15 kV ESD protection on bus pins, ensuring robustness against electrical surges.
- Fail-Safe Receiver Design: Ensures a logic high output when the inputs are floating.
- Slew Rate Limited Driver Outputs: Reduces EMI and data errors caused by reflections from improperly terminated buses.
- Thermal Shutdown and Short-Circuit Protection: Prevents excessive power dissipation caused by bus contention or output shorting.
- Industry-Standard Pinout: Compliant with the 75176 pinout, making it compatible with a wide range of applications.
Applications
- Power/Energy Metering: Suitable for use in power and energy metering systems due to its reliability and robustness.
- Telecommunications: Used in telecommunications systems for reliable data transmission.
- EMI-Sensitive Systems: Ideal for systems sensitive to electromagnetic interference due to its slew rate limited driver outputs.
- Industrial Control: Applied in industrial control systems for reliable and efficient data communication.
- Local Area Networks: Used in local area networks for multipoint bus transmission lines.
Q & A
- What is the data rate of the ADM3486EARZ transceiver?
The data rate of the ADM3486EARZ transceiver is 2.5 Mbps.
- What protocols does the ADM3486EARZ support?
The ADM3486EARZ supports RS-422 and RS-485 protocols.
- What is the operating temperature range of the ADM3486EARZ?
The operating temperature range is -40°C to 85°C.
- Does the ADM3486EARZ have ESD protection?
Yes, it has ±15 kV ESD protection on bus pins.
- What type of duplex operation does the ADM3486EARZ support?
The ADM3486EARZ supports half-duplex operation.
- What is the receiver input impedance of the ADM3486EARZ?
The receiver input impedance is 12 kΩ.
- Does the ADM3486EARZ have thermal shutdown protection?
Yes, it has thermal shutdown protection to prevent excessive power dissipation.
- What is the package type of the ADM3486EARZ?
The package type is 8-lead narrow SOIC.
- What is the supply voltage range for the ADM3486EARZ?
The supply voltage range is 3V to 3.6V.
- Is the ADM3486EARZ lead-free and RoHS compliant?
Yes, it is lead-free and RoHS compliant.
