Overview
The MAX485ESA+ is a low-power RS-485/RS-422 transceiver integrated circuit designed and manufactured by Analog Devices Inc./Maxim Integrated. This IC is optimized for converting logic levels between TTL/CMOS and RS-485/RS-422 voltages, making it suitable for both half-duplex and full-duplex communication. It is packaged in an 8-pin Small Outline Package (SOIC-8) and is compliant with the RoHS environmental protection standard. The MAX485ESA+ operates over a wide temperature range from -40°C to 85°C, making it an excellent choice for industrial-grade communication applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated |
| Package Type | 8-pin SOIC (Small Outline Package) |
| Supply Voltage Range | 4.75V to 5.25V |
| Operating Temperature Range | -40°C to 85°C |
| Data Rate | Up to 2.5 Mbps |
| Quiescent Current | 300 μA |
| Driver/Receiver Enable | Yes |
| Short Circuit Protection | Yes, with thermal shutdown |
| Fail-Safe Circuitry | Logic high receiver output when receiver input is open |
| Number of Transceivers on the Bus | Up to 32 |
| Compliance | RoHS compliant |
Key Features
- Low-power operation with a quiescent current of 300 μA.
- Supports both half-duplex and full-duplex communication.
- High data rate of up to 2.5 Mbps.
- Short circuit current limited and protected by thermal shutdown circuitry.
- Fail-safe circuitry ensuring a logic high receiver output when the receiver input is open.
- Receiver/driver enable function for flexible control.
- Protection circuitry for open circuit, lost ground, and shorted lines.
Applications
- Communications and Networking: Ideal for point-to-point and multi-drop interfaces in communication networks.
- Industrial Applications: Suitable for industrial environments due to its wide operating temperature range and robust protection features.
Q & A
- What is the MAX485ESA+ used for?
The MAX485ESA+ is used for converting logic levels between TTL/CMOS and RS-485/RS-422 voltages, enabling communication in both half-duplex and full-duplex modes.
- What is the package type of the MAX485ESA+?
The MAX485ESA+ is packaged in an 8-pin Small Outline Package (SOIC-8).
- What is the operating temperature range of the MAX485ESA+?
The operating temperature range is from -40°C to 85°C.
- What is the maximum data rate supported by the MAX485ESA+?
The MAX485ESA+ supports data rates up to 2.5 Mbps.
- Does the MAX485ESA+ have short circuit protection?
Yes, it has short circuit current limitation and thermal shutdown circuitry for protection.
- How many transceivers can be connected on the bus using the MAX485ESA+?
Up to 32 transceivers can be connected on the bus.
- Is the MAX485ESA+ RoHS compliant?
Yes, the MAX485ESA+ is RoHS compliant.
- What is the quiescent current of the MAX485ESA+?
The quiescent current is 300 μA.
- Does the MAX485ESA+ have fail-safe circuitry?
Yes, it has fail-safe circuitry that ensures a logic high receiver output when the receiver input is open.
- In what types of applications is the MAX485ESA+ commonly used?
The MAX485ESA+ is commonly used in communications and networking, as well as industrial applications.
