Overview
The MAX490ESA+ is a low-power, slew-rate-limited RS-485/RS-422 transceiver produced by Analog Devices Inc./Maxim Integrated. This device is designed to provide reliable and efficient communication in various industrial and commercial applications. It features a full-duplex configuration, making it suitable for systems that require simultaneous transmission and reception of data.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Supply Voltage (VCC) | 4.75 to 5.25 | V |
| Operating Temperature Range | 0°C to +70°C (C version) | °C |
| Storage Temperature Range | -65°C to +160°C | °C |
| Lead Temperature (soldering, 10sec) | +300°C | °C |
| No-Load Supply Current (ICC) | 300 µA (typical) | µA |
| Shutdown Current (ISHDN) | 0.1 µA (typical) | µA |
| Data Rate | 2.5 Mbps | Mbps |
| Driver Enable to Output Low (tPLH) | 15 ns (typical) | ns |
| Driver Enable to Output High (tPHL) | 15 ns (typical) | ns |
| Package Type | SO-8 | - |
Key Features
- Low Power Consumption: The MAX490ESA+ minimizes thermal dissipation with a quiescent current of 300 µA and a shutdown current of 0.1 µA, reducing system cost and enhancing reliability.
- Full-Duplex Operation: This transceiver supports full-duplex communication, allowing simultaneous transmission and reception of data.
- Slew-Rate Limited Drivers: The device features slew-rate-limited drivers to reduce electromagnetic interference (EMI) and ensure reliable data transmission.
- Wide Operating Temperature Range: The MAX490ESA+ operates over a temperature range of 0°C to +70°C, making it suitable for various environmental conditions.
- Compact SO-8 Package: The device is available in a compact SO-8 package, ideal for space-constrained applications.
Applications
- Industrial Control Systems: The MAX490ESA+ is used in industrial control systems for reliable and efficient communication between devices.
- Local Area Networks (LANs): It is suitable for use in LANs where robust and high-speed data transmission is required.
- Automotive Systems: The device can be used in automotive systems for communication over RS-485/RS-422 interfaces.
- Building Automation: It is applied in building automation systems for controlling and monitoring various building functions.
Q & A
- What is the primary function of the MAX490ESA+?
The MAX490ESA+ is a low-power, slew-rate-limited RS-485/RS-422 transceiver designed for reliable and efficient communication in various applications.
- What is the typical supply current of the MAX490ESA+?
The typical no-load supply current (ICC) of the MAX490ESA+ is 300 µA.
- What is the shutdown current of the MAX490ESA+?
The shutdown current (ISHDN) of the MAX490ESA+ is typically 0.1 µA.
- What is the data rate supported by the MAX490ESA+?
The MAX490ESA+ supports a data rate of up to 2.5 Mbps.
- What package type is the MAX490ESA+ available in?
The MAX490ESA+ is available in an SO-8 package.
- What are the key features of the MAX490ESA+?
The key features include low power consumption, full-duplex operation, slew-rate-limited drivers, a wide operating temperature range, and a compact package.
- What are some common applications of the MAX490ESA+?
Common applications include industrial control systems, local area networks, automotive systems, and building automation.
- What is the operating temperature range of the MAX490ESA+?
The operating temperature range of the MAX490ESA+ is 0°C to +70°C.
- How does the MAX490ESA+ reduce electromagnetic interference (EMI)?
The MAX490ESA+ reduces EMI through its slew-rate-limited drivers.
- Is the MAX490ESA+ suitable for space-constrained applications?
Yes, the MAX490ESA+ is suitable for space-constrained applications due to its compact SO-8 package.
