MAX491EPD
- Mfr.Part #
- MAX491EPD
- Manufacturer
- Analog Devices, Inc.
- Package / Case
- 14-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- RS-485/RS-422 TRANSCVR
- Stock
- 1,197
- In Stock :
- 1,197
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- Manufacturer :
- Analog Devices, Inc.
- Product Category :
- Drivers, Receivers, Transceivers
- Logic Function :
- Receiver, Transceiver
- Number of Pins :
- 14
- Output Characteristics :
- 3-STATE
- Base Part Number :
- MAX491
- Duplex :
- Full
- Mounting Type :
- Through Hole
- Protocol :
- RS422, RS485
- Receiver Hysteresis :
- 70mV
- Terminal Pitch :
- 2.54mm
- Output Polarity :
- Complementary
- Output Low Current-Max :
- 0.004A
- Radiation Hardening :
- No
- Lead Free :
- Lead Free
- Input Characteristics :
- DIFFERENTIAL SCHMITT TRIGGER
- Operating Temperature :
- -40°C~85°C
- Receiver Number of Bits :
- 1
- Simplex/Duplex :
- Full Duplex
- Terminal Position :
- Dual
- Data Rate :
- 2.5Mbps
- Supply Voltage :
- 5V
- Factory Lead Time :
- 6 Weeks
- Mount :
- Through Hole
- Power Supplies :
- 5V
- Pbfree Code :
- yes
- Published :
- 2004
- Operating Supply Voltage :
- 5V
- Number of Terminations :
- 14
- High Level Input Current-Max :
- 0.000002A
- Peak Reflow Temperature (Cel) :
- 260
- Interface :
- RS-422, RS-485
- RoHS Status :
- ROHS3 Compliant
- Height :
- 4.45mm
- REACH SVHC :
- Unknown
- Contact Plating :
- Tin
- Number of Drivers/Receivers :
- 1/1
- Length :
- 19.43mm
- Type :
- Transceiver
- Package / Case :
- 14-DIP (0.300, 7.62mm)
- Number of Transceivers :
- 1
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Packaging :
- Tube
- Transmit Delay-Max :
- 60 ns
- Driver Number of Bits :
- 1
- Pin Count :
- 14
- Width :
- 7.87mm
- Number of Functions :
- 1
- Voltage - Supply :
- 4.75V~5.25V
- JESD-609 Code :
- e3
- Differential Output :
- yes
- Nominal Supply Current :
- 500μA
- Datasheets
- MAX491EPD

Drivers, Receivers, Transceivers Analog Devices, Inc. MAX491EPD Overview
The Analog Devices, Inc. MAX491EPD is a high-performance RS485/RS422 transceiver designed to meet the demanding requirements of balanced communication networks. Built using Analog Devices' advanced technology, the MAX491EPD provides reliable data transmission over long distances and in electrically noisy environments. This makes it an ideal choice for applications requiring robust and error-free communications. As part of the broader category of Drivers, Receivers, Transceivers, this device ensures improved signal integrity and reduced power consumption, which are crucial for industrial and commercial telecommunications systems.
MAX491EPD Features
The MAX491EPD transceiver includes multiple features that enhance its functionality and reliability in complex electronic systems:
- Full-duplex RS485 and RS422 communication capability.
- High-speed data rates up to 2.5 Mbps.
- Extended common-mode range (-7V to +12V) for better noise rejection.
- Thermal shutdown and short-circuit protection features safeguard the device and connected components.
- Low quiescent current and power-down mode help in reducing power consumption.
- Designed for half-duplex communications to maximize bus efficiency.
MAX491EPD Applications
- Industrial Automation: The MAX491EPD can be used in factory automation systems to ensure reliable data communication between machinery and control systems, even in areas with high electrical interference.
- Building Automation: Enables robust communication in building management systems, facilitating better control over HVAC, lighting, and security systems.
- Telecommunications Equipment: Essential for data exchange in telecom infrastructures, supporting error-free transmissions over various distances.
- Networking Equipment: Suitable for networked communication in modems and routers where stable and secure data flow is required.
- Automotive Networks: Can be applied in vehicle bus systems to manage communication between different electronic control units (ECUs).
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