MAX490CSA+

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:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	MAX490

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Introduction

MAX490CSA+ is a high performance, low-power, half-duplex transceiver from Maxim Integrated Products. It is designed for use with applications like half-duplex RS-485 and RS-422 communications. The MAX490CSA+ includes one driver and one receiver for both standard and low-speed data transmission up to 1 Mbps. It also includes protection from high-voltage transients. The MAX490CSA+ is an ideal choice for applications such as industrial communications, instrumentation systems, and intelligent sensors.

Features

The MAX490CSA+ is designed to be a high-performance, easy to use transceiver, with several features that ensure reliable data transfer. It features both a driver and receiver, allowing data transmission in both directions. The driver features both transmit and receive modes that can be selected with simple logic signals. The receiver can detect both high and low logic states, allowing it to be used in a variety of applications. The receiver also features a fail-safe input, which allows it to automatically detect data transmission errors. The MAX490CSA+ also has active-low enable pin, which allows it to be powered down when not in use and can be used for power savings and improved battery life.The MAX490CSA+ also includes a high-voltage protection feature, which protects the device from damage caused by high-voltage transients. This feature ensures the device will continue to operate reliably in industrial and automotive environments.

Application Fields

The MAX490CSA+ is an ideal choice for applications such as industrial communications, instrumentation systems, and intelligent sensors. The high-performance transceiver can be used in RS-485 and RS-422 applications, with full-duplex, half-duplex, and low-speed data transmission. It is also suitable for high-voltage environments, due to its high-voltage protection feature.The device is also suitable for a range of applications, including smart sensors, home automation, automotive communications, and industrial monitoring systems. As it is a low-power device, it is also suitable for applications where battery life is an important consideration. The MAX490CSA+ can be used in intelligent sensor applications, as it enables both transmission and reception of data in a single device.

Working Principle

The MAX490CSA+ is designed to operate in either full-duplex or half-duplex modes, depending on the logic level of the clock signal. In full-duplex mode, both the driver and receiver are active, allowing for simultaneous data transmission in both directions. In the half-duplex mode, the driver is active and the receiver is disabled until a signal is transmitted. Once the signal is transmitted, the driver is disabled and the receiver is enabled in order to receive the data.The MAX490CSA+ features an active-low enable pin, which allows it to be powered down when not in use, providing improved power savings and longer battery life. The device also includes a fail-safe input, which allows it to detect data transmission errors, ensuring reliable communication.

Conclusion

The MAX490CSA+ is a high-performance, low-power transceiver from Maxim Integrated Products. It provides one driver and one receiver for both standard and low-speed data transmission up to 1 Mbps, and includes a high-voltage transient protection feature. It can be used for applications such as industrial communications, instrumentation systems, automotive communications, and intelligent sensors, and is suitable for use in both full-duplex and half-duplex mode. The device features an active-low enable pin, which allows it to be powered down when not in use, and also features a fail-safe input to detect data transmission errors.

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