MAX491EEPD+

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Transceiver
Protocol:	RS422, RS485
Number of Drivers/Receivers:	1/1
Duplex:	Full
Receiver Hysteresis:	70mV
Data Rate:	2.5Mbps
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Through Hole
Package / Case:	14-DIP (0.300", 7.62mm)
Supplier Device Package:	14-PDIP
Base Part Number:	MAX491

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Introduction to MAX491EEPD+

The MAX491EEPD+ is a low-power, dual differential line driver, receiver and transceiver IC from Maxim Integrated. It is a highly integrated analog circuit, which is used to bridge between digital sources/sinks andthe environments which require signal isolation and signal conversion. Usually, this IC contains two differential line driver and twohigh-performance differential line receivers. It is used in a wide range of industrial applications such as factory automation, homeautomation, and industrial process control.

Applications

The MAX491EEPD+ is used in a wide range of industrial applications. It is widely used in factory automation and process control, homeautomation, switched-mode power supplies, motor control, and industrial safety applications. It is also used in medical devices andbioinstrumentation, security and fire systems, and other general-purpose applications. The MAX491EEPD+ is ideal for providingisolated, low voltage, and bidirectional signal conversion between digital and analog signals.

Features

The MAX491EEPD+ boasts a wide range of features and benefits. These features include:• Low-power operation: The IC is designed to operate at low power, making it ideal for battery-powered systems and applications where power efficiency is important.• Differential line drivers: The MAX491EEPD+ contains two differential line drivers that can accept a single-ended input and provide differential outputs.• Differential line receivers: The MAX491EEPD+ also contains two high-performance differential line receivers that can accept a differential input and provide single-ended output.• High-level common mode rejection ratio: The IC has a high-level common mode rejection ratio, which enables it to reject interference from common sources.• Isolation: The MAX491EEPD+ is provided with on-board isolation between the driver and receiver. This helps to protect the system from ground loops, common mode noise and other interference.• ESD protection: The MAX491EEPD+ contains on-board ESD protection circuitry, which provides protection against electrostatic discharges.• Small size: The MAX491EEPD+ is available in a small, 8-pin QFN package.

Working Principle

The MAX491EEPD+ contains two differential line drivers that can accept a single-ended input and provide differential outputs, and two high-performance differential line receivers that can accept a differential input and provide single-ended output. The drivers and receivers use Maxim Integrated\'s proprietary circuitry to provide low propagation delay, low distortion, and high common-mode rejection ratios.The line drivers have an input logic interface that can accept digital signals from a logic level interface. The input logic interface provides the interface between the digital source and the line driver. The line driver then converts the digital signal into an analog signal by amplifying the digital signal and providing the output signal in the form of a differential voltage.The line receivers have an input logic interface that can accept analog signals from a logic level interface. The input logic interface provides the interface between the analog source and the line receiver. The line receiver then converts the analog signal into a digital signal by measuring the voltage levels and providing the output signal in the form of a digital logic level.

Conclusion

The MAX491EEPD+ is a low-power dual differential line driver, receiver and transceiver IC that is widely used in a range of industrial applications. It contains two differential line drivers and two high performance differential line receivers and provides isolation between the driver and receiver, making it ideal for providing isolated, low voltage, and bidirectional signal conversion between digital and analog signals. It provides a low-power operation, high-level common mode rejection ratio, and on-board ESD protection circuitry, ensuring that the system is well-protected from interference and damage. It is a highly integrated analog circuit, which is capable of providing good signal conversion performance in a small form factor.

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