Overview
The ADM483ARZ is a low power differential line transceiver designed by Analog Devices Inc. for half-duplex data communication on multipoint bus transmission lines. This device is compliant with EIA Standards RS-485 and RS-422, making it suitable for balanced data transmission. It features a differential line driver and a differential line receiver, sharing the same differential pins, with either the driver or the receiver being enabled at any given time.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Data Rate | Up to 250 | kbps |
| Supply Voltage | 5 | V |
| Supply Current (Active) | 120 | µA |
| Supply Current (Shutdown) | 100 | nA |
| Input Impedance | 12 | kΩ |
| Bus Common-Mode Range | –7 to +12 | V |
| Operating Temperature Range | –40 to +85 | °C |
| Package Type | 8-Lead SOIC |
Key Features
- EIA RS-485/RS-422 compliant
- Slew-rate limited for low EMI
- Low power consumption (120 µA active, 100 nA shutdown)
- Thermal shutdown and short-circuit protection
- Fail-safe receiver feature: logic high output if inputs are unconnected or floating
- Pin-compatible with MAX483
- High impedance driver output when disabled or powered off
Applications
- Low power RS-485 applications
- EMI sensitive systems
- DTE-DCE interfaces
- Industrial control systems
- Packet switching networks
- Local area networks
- Level translators
Q & A
- What is the data rate capability of the ADM483ARZ?
The ADM483ARZ can handle data rates up to 250 kbps.
- What is the supply voltage for the ADM483ARZ?
The supply voltage for the ADM483ARZ is 5 V.
- How much current does the ADM483ARZ consume in active mode?
The ADM483ARZ consumes 120 µA in active mode.
- What is the shutdown current of the ADM483ARZ?
The shutdown current of the ADM483ARZ is 100 nA.
- What is the input impedance of the ADM483ARZ?
The input impedance of the ADM483ARZ is 12 kΩ.
- What is the bus common-mode range of the ADM483ARZ?
The bus common-mode range of the ADM483ARZ is from –7 V to +12 V.
- What is the operating temperature range of the ADM483ARZ?
The operating temperature range of the ADM483ARZ is from –40°C to +85°C.
- What type of package is the ADM483ARZ available in?
The ADM483ARZ is available in an 8-Lead SOIC package.
- Does the ADM483ARZ have thermal shutdown protection?
- What happens to the receiver output if the inputs are unconnected or floating?
The receiver output will be a logic high if the inputs are unconnected or floating due to the fail-safe feature.
