Overview
The ADM4850ARMZ is a high-performance, half-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. This device is designed for balanced data transmission and complies with EIA Standards RS-485 and RS-422. It is suitable for high-speed data communication on multipoint bus transmission lines and is particularly useful in low power RS-485 applications and EMI sensitive systems.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Protocol | RS-422, RS-485 | - | - |
| Duplex | Half | - | - |
| Data Rate | 115 kbps | kbps | - |
| Receiver Hysteresis | 20 mV | mV | - |
| Voltage - Supply | 4.75 V ~ 5.25 V | V | - |
| Operating Temperature | -40°C ~ 85°C | °C | - |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | - | - |
| Mounting Type | Surface Mount | - | - |
| Number of Drivers/Receivers | 1/1 | - | - |
Key Features
- Compliance with EIA Standards RS-485 and RS-422.
- Half-duplex operation with separate enable inputs for the driver and receiver.
- Slew rate limited driver outputs to reduce electromagnetic interference (EMI).
- True fail-safe receiver inputs.
- Low supply current in shutdown mode (maximum 5 µA).
- Thermal shutdown and short-circuit protection.
- Pin-compatible with the MAX308x series.
- Up to 256 transceivers can be connected on one bus.
- Outputs are high-Z when disabled or powered off.
- Bus common-mode range of -7 V to +12 V.
Applications
- Low power RS-485 applications.
- EMI sensitive systems.
- DTE to DCE interfaces.
- Industrial control systems.
- Packet switching networks.
- Local area networks (LANs).
- Level translators.
- Automotive applications.
Q & A
- What is the primary function of the ADM4850ARMZ?
The ADM4850ARMZ is a half-duplex RS-485/RS-422 transceiver designed for high-speed data communication on multipoint bus transmission lines.
- What are the supported data rates for the ADM4850ARMZ?
The ADM4850ARMZ supports a data rate of 115 kbps.
- What is the operating temperature range of the ADM4850ARMZ?
The operating temperature range is -40°C to 85°C.
- What types of packages are available for the ADM4850ARMZ?
The device is available in 8-TSSOP and 8-MSOP packages.
- Is the ADM4850ARMZ RoHS compliant?
- What is the maximum supply current in shutdown mode?
The maximum supply current in shutdown mode is 5 µA.
- Does the ADM4850ARMZ have thermal shutdown protection?
- How many transceivers can be connected on one bus?
- What is the bus common-mode range of the ADM4850ARMZ?
- Is the ADM4850ARMZ suitable for automotive applications?
