MAX491 (10)
The MAX491 is available from Maxim Integrated at Xecor. Designed for low-power RS-485 and RS-422 communication, the MAX491 offers low power consumption, slew-rate-limited drivers, and integrated protection features such as short-circuit current limiting and thermal shutdown. Available in a 14-pin SOIC package, it is ideal for industrial-control local area networks, level translators, and EMI-sensitive applications. Whether used in industrial automation, telecommunications, or low-power transceiver systems, this series ensures reliable performance, scalability, and efficiency for demanding applications. Xecor is an authorized distributor for Maxim Integrated. Please view our extensive selection of the MAX491 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| MAX491CSD | Multi-purpose transceiver offering reliable signal reception and transmission" | SOIC-14 | 9,304 | |
| MAX491ECSD | Industrial-grade robustness: Designed for harsh environments, this IC can withstand electrical noise and interference | SOIC-14 | 9,940 | |
| MAX491ESD+ | RS-422/RS-485 Interface IC Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers | SOIC-14 | 6,516 | |
| MAX491ECPD | Fast and robust serial connectivity solution for industrial applications | 14-DIP | 5,698 | |
| MAX491CPD | A robust solution for noise-immune communication, perfect for harsh industrial environments or long-cable applications | 14-DIP | 8,331 | |
| MAX491CPD+ | A robust solution for noise-immune communication, perfect for harsh industrial environments or long-cable applications | PDIP-14 | 3,538 | |
| MAX491CSD+ | Multi-purpose transceiver offering reliable signal reception and transmission" | SOIC-14 | 2,851 | |
| MAX491CSD+T | 2.5Mbps 1/1 SOIC-14 RS-485/RS-422 ICs MAX491CSD+T - Transceiver RoHS | SOICNarrow-14 | 4,110 | |
| MAX491ESD+T | 14-pin soic n t/r single transmitter/receiver rs-422/rs-485 | SOIC-14 | 6,265 | |
| MAX491EPD+ | Compact, high-performance transceiver for RS-485 applications | PDIP-14 | 6,378 |
Key Featrues
Low Power Consumption: The MAX491ESD+ operates with a quiescent current ranging from 120µA to 500µA, significantly reducing thermal dissipation and system costs. This feature is particularly beneficial for battery-powered or energy-efficient applications, ensuring prolonged operation without excessive power drain.
Slew-Rate-Limited Drivers: The device supports data rates up to 250kbps with slew-rate-limited drivers, reducing electromagnetic interference (EMI) and improving signal integrity. This makes it ideal for EMI-sensitive applications, such as industrial control systems, where clean signal transmission is critical.
Integrated Protection Features: The MAX491ESD+ includes short-circuit current limiting, thermal shutdown, and receiver fail-safe for input open circuits. These protections enhance system robustness, ensuring reliable operation in harsh environments and preventing damage from electrical faults.
1/4 Unit Loading (MAX487/MAX1487): With a receiver input resistance of 48kΩ, the device allows up to 128 devices to be connected on a single bus. This feature is advantageous for large-scale industrial networks, enabling efficient communication across multiple nodes without signal degradation.
Full Duplex Communication: The transceiver supports full-duplex communication, allowing simultaneous transmission and reception of data. This capability is essential for real-time communication systems, such as industrial control local area networks, where bidirectional data flow is required for efficient operation.
Slew-Rate-Limited Drivers: The device supports data rates up to 250kbps with slew-rate-limited drivers, reducing electromagnetic interference (EMI) and improving signal integrity. This makes it ideal for EMI-sensitive applications, such as industrial control systems, where clean signal transmission is critical.
Integrated Protection Features: The MAX491ESD+ includes short-circuit current limiting, thermal shutdown, and receiver fail-safe for input open circuits. These protections enhance system robustness, ensuring reliable operation in harsh environments and preventing damage from electrical faults.
1/4 Unit Loading (MAX487/MAX1487): With a receiver input resistance of 48kΩ, the device allows up to 128 devices to be connected on a single bus. This feature is advantageous for large-scale industrial networks, enabling efficient communication across multiple nodes without signal degradation.
Full Duplex Communication: The transceiver supports full-duplex communication, allowing simultaneous transmission and reception of data. This capability is essential for real-time communication systems, such as industrial control local area networks, where bidirectional data flow is required for efficient operation.
Applications
Industrial-Control Local Area Networks: The MAX491ESD+ is perfect for industrial-control local area networks, where reliable communication over long distances is essential. Its low-power consumption and slew-rate-limited drivers ensure robust data transmission at speeds up to 2.5Mbps, making it ideal for connecting sensors, actuators, and controllers in harsh industrial environments.
Level Translators: The MAX491ESD+ can be used as a level translator in mixed-voltage systems, ensuring seamless communication between devices operating at different voltage levels. Its integrated protection features, such as short-circuit current limiting and thermal shutdown, make it a reliable choice for level-shifting applications in industrial and automotive systems.
Low-Power RS-485 Transceivers: The MAX491ESD+ is well-suited for low-power RS-485 communication systems, such as remote monitoring and control applications. Its quiescent current as low as 120µA and shutdown current of 0.1µA make it ideal for battery-powered devices, ensuring long operational life in energy-efficient designs.
Transceivers for EMI-Sensitive Applications: The MAX491ESD+ is an excellent choice for EMI-sensitive applications, such as medical devices or precision instrumentation. Its slew-rate-limited drivers minimize electromagnetic interference, while its integrated protection features ensure reliable operation in environments where signal integrity is critical.
Level Translators: The MAX491ESD+ can be used as a level translator in mixed-voltage systems, ensuring seamless communication between devices operating at different voltage levels. Its integrated protection features, such as short-circuit current limiting and thermal shutdown, make it a reliable choice for level-shifting applications in industrial and automotive systems.
Low-Power RS-485 Transceivers: The MAX491ESD+ is well-suited for low-power RS-485 communication systems, such as remote monitoring and control applications. Its quiescent current as low as 120µA and shutdown current of 0.1µA make it ideal for battery-powered devices, ensuring long operational life in energy-efficient designs.
Transceivers for EMI-Sensitive Applications: The MAX491ESD+ is an excellent choice for EMI-sensitive applications, such as medical devices or precision instrumentation. Its slew-rate-limited drivers minimize electromagnetic interference, while its integrated protection features ensure reliable operation in environments where signal integrity is critical.
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