Overview
The ADM483EAR-1REEL, produced by Analog Devices Inc., is a 5 V, low power, slew-rate limited RS-485/RS-422 transceiver. This device is designed for half-duplex data communication on multipoint bus transmission lines and complies with EIA Standards RS-485 and RS-422. It features a differential line driver and a differential line receiver, sharing the same differential pins, which allows for balanced data transmission. The transceiver is known for its low power consumption, high ESD protection, and robust design, making it suitable for a variety of applications, including those in electrically harsh environments.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage | 4.5 | 5 | 5.5 | V | |
| Supply Current | 120 | µA | |||
| Shutdown Current | 0.1 | µA | |||
| Data Rate | 250 | kbps | |||
| Bus Common-Mode Range | -7 | +12 | V | ||
| Input Impedance | 12 | kΩ | |||
| ESD Protection | ±15 | kV | HBM air discharge | ||
| Operating Temperature Range | -40 | +85 | °C | ||
| Package Type | 8-Lead SOIC |
Key Features
- EIA RS-485/RS-422 compliant
- Data rates up to 250 kbps
- Slew-rate limited for low EMI
- Low power consumption (120 µA) and low shutdown current (0.1 µA)
- Up to 32 transceivers on one bus
- ±15 kV ESD protection
- Thermal shutdown and short-circuit protection
- Fail-safe receiver design with logic high output state if inputs are unconnected
- Single 5 V ± 10% supply voltage
- Operating temperature range from -40°C to +85°C
Applications
- Low power RS-485 systems
- EMI sensitive systems
- DTE-DCE interfaces
- Packet switching
- Local area networks
- Industrial control systems
- Electrically harsh environments
Q & A
- What is the ADM483EAR-1REEL used for?
The ADM483EAR-1REEL is used for half-duplex data communication on multipoint bus transmission lines, complying with EIA Standards RS-485 and RS-422.
- What is the maximum data rate of the ADM483EAR-1REEL?
The maximum data rate is up to 250 kbps.
- What is the supply voltage range for the ADM483EAR-1REEL?
The supply voltage range is 4.5 V to 5.5 V.
- How many transceivers can be connected on one bus?
Up to 32 transceivers can be connected on one bus.
- What is the ESD protection level of the ADM483EAR-1REEL?
The ESD protection level is ±15 kV HBM air discharge.
- What is the operating temperature range of the ADM483EAR-1REEL?
The operating temperature range is from -40°C to +85°C.
- What type of package does the ADM483EAR-1REEL come in?
The ADM483EAR-1REEL comes in an 8-Lead SOIC package.
- Does the ADM483EAR-1REEL have thermal shutdown protection?
- What is the shutdown current of the ADM483EAR-1REEL?
The shutdown current is 0.1 µA.
- Is the receiver of the ADM483EAR-1REEL fail-safe?
