Overview
The ADM3078EARZ-REEL7 is a high-speed, low-power RS-485/RS-422 transceiver from Analog Devices Inc. This device is part of the ADM307xE series, designed for reliable and efficient data communication in various industrial and commercial applications. It features a single driver and a single receiver, making it suitable for half- and full-duplex communication systems. The transceiver is known for its robust design, including fail-safe receiver inputs, hot-swap capability, and enhanced protection against electrical stress and thermal issues.
Key Specifications
| Parameter | Value | Unit | Conditions |
|---|---|---|---|
| Operating Temperature | -40°C to +125°C | °C | |
| Supply Voltage | 3.3 V ± 10% | V | |
| Data Rate | Up to 16 Mbps | Mbps | |
| Propagation Delay (Low-to-High) | 50 ns | ns | CL = 50 pF, RL = 54 Ω |
| Propagation Delay (High-to-Low) | 50 ns | ns | CL = 50 pF, RL = 54 Ω |
| Rise/Fall Time | 15 ns | ns | CL = 50 pF, RL = 54 Ω |
| Differential Driver Output Skew | 8 ns | ns | CL = 50 pF, RL = 54 Ω |
| Common-Mode Input Range | -7 V to +12 V | V | |
| Package Type | 8-Lead SOIC (0.154", 3.90mm Width) |
Key Features
- High-Speed Data Transmission: Supports data rates up to 16 Mbps.
- Fail-Safe Receiver Inputs: Ensures a logic high output when receiver inputs are open, shorted, or connected to a terminated transmission line with all drivers disabled.
- Hot-Swap Capability: Allows line insertion without erroneous data transfer.
- Low EMI: Reduced slew rates minimize electromagnetic interference and reduce reflections caused by improperly terminated cables.
- Thermal and Short-Circuit Protection: Includes thermal shutdown and short-circuit protection for enhanced reliability.
- Low Power Shutdown: Low power shutdown current when the device is disabled or powered off.
- High-Z Outputs When Disabled: Outputs are in a high impedance state when the device is disabled or powered off.
- ESD Protection: ±15 kV ESD protection on RS-485 input/output pins.
Applications
- Power/Energy Metering: Used in smart metering systems for reliable data communication.
- Industrial Control: Employed in industrial automation and control systems.
- Lighting Systems: Integrated into smart lighting systems for efficient control and monitoring.
- Telecommunications: Utilized in telecommunications equipment for reliable data transmission.
- Security Systems: Used in security systems for secure and reliable communication.
- Instrumentation: Applied in various instrumentation applications requiring precise data communication.
Q & A
- What is the maximum data rate supported by the ADM3078EARZ-REEL7?
The ADM3078EARZ-REEL7 supports data rates up to 16 Mbps. - What is the operating temperature range of the ADM3078EARZ-REEL7?
The operating temperature range is -40°C to +125°C. - What type of package does the ADM3078EARZ-REEL7 come in?
The device comes in an 8-Lead SOIC package. - Does the ADM3078EARZ-REEL7 have ESD protection?
Yes, it has ±15 kV ESD protection on RS-485 input/output pins. - What is the common-mode input range of the ADM3078EARZ-REEL7?
The common-mode input range is -7 V to +12 V. - Does the ADM3078EARZ-REEL7 support hot-swap capability?
Yes, it supports hot-swap capability, allowing line insertion without erroneous data transfer. - What is the propagation delay of the ADM3078EARZ-REEL7?
The propagation delay is 50 ns for both low-to-high and high-to-low transitions. - Does the ADM3078EARZ-REEL7 have thermal and short-circuit protection?
Yes, it includes thermal shutdown and short-circuit protection. - How many nodes can be supported on the bus with the ADM3078EARZ-REEL7?
Up to 256 nodes can be supported on the bus. - What is the rise/fall time of the ADM3078EARZ-REEL7?
The rise/fall time is 15 ns.
