Overview
The ADM3485EARZ-REEL7 is a high-speed, low-power transceiver designed for RS-485 and RS-422 communication protocols, manufactured by Analog Devices Inc. This component is part of the ADM3485 series, which is known for its high data transmission rates and robust protection features. The ADM3485EARZ-REEL7 is particularly suited for applications requiring reliable and fast data communication over long distances.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | ADM3485EARZ-REEL7 |
| Package | 8-Lead Narrow Body Small Outline (SOIC_N) |
| Data Rate | Up to 10 Mbps |
| Temperature Range | −40°C to +85°C |
| Receiver Input Impedance | 12 kΩ |
| Driver Enable/Receiver Enable | Yes |
| Protection Features | Thermal shutdown, current limit protection |
| Propagation Delay Skew | Typically under 10 ns |
Key Features
- High-Speed Data Transmission: Supports data rates up to 10 Mbps, making it suitable for high-speed communication applications.
- Robust Protection: Features thermal shutdown and current limit protection to prevent excessive power dissipation and output current during fault conditions.
- Fail-Safe Receiver: Ensures a logic high output state if the inputs are unconnected or floating.
- Low Power Consumption: Designed to operate with low power, reducing the overall energy requirements of the system.
- Driver and Receiver Enable Pins: Allows for independent control of the driver and receiver, enhancing flexibility in system design.
- High Impedance Outputs: When disabled, the driver and receiver outputs go into a high impedance state, reducing power consumption and minimizing interference.
Applications
- Multipoint Bus Transmission Lines: Ideal for half-duplex bidirectional data communications in multipoint bus networks.
- Daisy-Chain Networks: Can be used in daisy-chain network topologies or point-to-point applications.
- Line Repeaters: The ADM3491 variant can be used as a line repeater to extend the communication distance.
- Industrial Automation: Suitable for use in industrial automation systems where reliable and high-speed data communication is critical.
- Telecommunications: Used in various telecommunications equipment where RS-485 and RS-422 protocols are employed.
Q & A
- What is the maximum data rate supported by the ADM3485EARZ-REEL7?
The ADM3485EARZ-REEL7 supports data rates up to 10 Mbps.
- What type of package does the ADM3485EARZ-REEL7 come in?
The ADM3485EARZ-REEL7 comes in an 8-Lead Narrow Body Small Outline (SOIC_N) package.
- What is the temperature range for the ADM3485EARZ-REEL7?
The ADM3485EARZ-REEL7 is fully specified over the temperature range of −40°C to +85°C.
- Does the ADM3485EARZ-REEL7 have driver and receiver enable pins?
Yes, the ADM3485EARZ-REEL7 includes driver enable (DE) and receiver enable (RE) pins.
- What protection features are included in the ADM3485EARZ-REEL7?
The ADM3485EARZ-REEL7 includes thermal shutdown and current limit protection to prevent excessive power dissipation and output current during fault conditions.
- How many transceivers can be connected on the bus?
Up to 32 transceivers can be connected on the bus due to the receiver input impedance of 12 kΩ.
- What happens if the inputs are unconnected or floating?
If the inputs are unconnected or floating, the receiver will result in a logic high output state.
- Can the ADM3485EARZ-REEL7 be used in daisy-chain networks?
Yes, the ADM3485EARZ-REEL7 can be used in daisy-chain network topologies or point-to-point applications.
- What is the typical propagation delay skew for the ADM3485EARZ-REEL7?
The propagation delay skew is typically under 10 ns.
- Is the ADM3485EARZ-REEL7 suitable for industrial automation applications?
Yes, the ADM3485EARZ-REEL7 is suitable for use in industrial automation systems where reliable and high-speed data communication is critical.
