Overview
The ADM4850ARMZ-REEL7 is a half-duplex transceiver IC designed for RS-485 and RS-422 communication protocols, manufactured by Analog Devices Inc. This component is housed in an 8-MSOP package and is lead-free and RoHS compliant. It operates within a supply voltage range of 4.75 V to 5.25 V and is specified over a temperature range of -40°C to 85°C. The ADM4850ARMZ-REEL7 is known for its low electromagnetic interference (EMI) due to reduced slew rates and features true fail-safe receiver inputs, ensuring a known state when the inputs are open or shorted.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Part Number | ADM4850ARMZ-REEL7 | - |
| Manufacturer | Analog Devices Inc. | - |
| Description | IC TXRX RS485/422 115KBPS 8-MSOP | - |
| Voltage - Supply | 4.75 V ~ 5.25 V | V |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | - |
| Operating Temperature | -40°C ~ 85°C | °C |
| Data Rate | 115 kbps | kbps |
| Protocol | RS422, RS485 | - |
| Number of Drivers/Receivers | 1/1 | - |
| Duplex | Half | - |
| Receiver Hysteresis | 20mV | mV |
| Mounting Type | Surface Mount | - |
Key Features
- Compliance with RS-485 and RS-422 Standards: The ADM4850ARMZ-REEL7 is fully compliant with EIA RS-485 and RS-422 standards, making it suitable for a wide range of industrial and commercial applications.
- Low Electromagnetic Interference (EMI): The device features reduced slew rates to minimize EMI and data errors caused by reflections from improperly terminated buses.
- True Fail-Safe Receiver Inputs: Ensures a logic high output level when the inputs are open or shorted, providing a known state before and after communication.
- Thermal Shutdown and Short-Circuit Protection: Prevents excessive power dissipation caused by bus contention or output shorting.
- High Bus Capacity: Allows up to 256 transceivers on one bus due to its 1/8-unit load receiver input impedance.
- Low Power Consumption: The device has a maximum supply current of 5 µA in shutdown mode.
Applications
- Industrial Automation: Suitable for use in industrial control systems, motor control, and other automation applications.
- Telecommunications: Used in telecommunications equipment for reliable data transmission.
- Medical Devices: Can be used in medical devices that require robust and reliable communication interfaces.
- Automotive Systems: Applicable in automotive systems for communication between various control units.
- Building Automation: Used in building automation systems for controlling and monitoring various parameters.
Q & A
- What is the primary function of the ADM4850ARMZ-REEL7?
The primary function of the ADM4850ARMZ-REEL7 is to act as a half-duplex transceiver for RS-485 and RS-422 communication protocols. - What is the operating temperature range of the ADM4850ARMZ-REEL7?
The operating temperature range is -40°C to 85°C. - What is the maximum data rate of the ADM4850ARMZ-REEL7?
The maximum data rate is 115 kbps. - Is the ADM4850ARMZ-REEL7 lead-free and RoHS compliant?
Yes, the ADM4850ARMZ-REEL7 is lead-free and RoHS compliant. - What type of package does the ADM4850ARMZ-REEL7 come in?
The ADM4850ARMZ-REEL7 comes in an 8-MSOP package. - How many transceivers can be connected on one bus?
Up to 256 transceivers can be connected on one bus. - What is the purpose of the reduced slew rates in the ADM4850ARMZ-REEL7?
The reduced slew rates are designed to minimize electromagnetic interference (EMI) and data errors caused by reflections from improperly terminated buses. - Does the ADM4850ARMZ-REEL7 have thermal shutdown protection?
Yes, the device has thermal shutdown and short-circuit protection to prevent excessive power dissipation. - What is the maximum supply current in shutdown mode?
The maximum supply current in shutdown mode is 5 µA. - Is the ADM4850ARMZ-REEL7 suitable for industrial automation applications?
Yes, it is suitable for industrial automation and other similar applications due to its robust and reliable communication capabilities.
