MAX231EWE+

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Transceiver
Protocol:	RS232
Number of Drivers/Receivers:	2/2
Duplex:	Full
Receiver Hysteresis:	500mV
Data Rate:	120Kbps
Voltage - Supply:	5 V, 7.5 V ~ 13.2 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	MAX231

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Introduction

MAX231EWE+ is a high-performance, highly versatile, low-power interface IC. It is designed to work as a universal bus driver/receiver, transceiver, and FET driver in automotive, industrial, communication, and consumer electronics applications. The MAX231EWE+ provides an optimal solution for interfacing a wide range of digital logic families, including TTL, CMOS, and ECL. The MAX231EWE+ is an integrated circuit (IC) that combines two differential line drivers, two differential line receivers, one differential line transceiver, and one FET driver into one chip.

Applications

MAX231EWE+ is widely used in end applications that require a connection between both digital and analog systems such as automotive, industrial, communications and consumer electronics. Its main applications include but not limited to:

• Automotive: This includes car navigation, driver assistance, and data communication link between in-vehicle information systems.
• Industrial: This includes control systems, robotics, and SCADA (Supervisory Control And Data Acquisition).
• Communications: This includes data communications and other high-speed links for modems, big printers, routers and switches.
• Consumer Electronics: This includes audio/video data links, computer peripheral interface, and digital displays.

Working Principle

The MAX231EWE+ works as a universal bus driver/receiver, transceiver, and FET driver, allowing digital logic families such as TTL, CMOS, and ECL to be connected using different logic levels. It is designed to operate on a single +5V power supply and has two differential line drivers and two differential line receivers. The line drivers can drive up to ±12V of output voltage, while the line receivers have -3.5V inputs for TTL logic, and -7V inputs for CMOS logic. The transceiver completes the data transmission by converting a differential output from one line driver to a differential voltage input for the downstream line receiver. The FET driver provides an output voltage ranging from -12V to +12V, which can be used to drive both transistor and FET. The MAX231EWE+ also utilizes the latest protection circuitry to ensure a safe and reliable operation. Firstly, it offers a false pulse rejection feature which allows it to reject noise spikes at inputs and outputs even when the power supply is off. Secondly, it has an Auto-blanking feature which provides protection against input/output surges without requiring an external blanking circuit.

Conclusion

MAX231EWE+ is a high-performance, low-power interface IC with a wide range of applications. It is suitable for connecting digital logic families such as TTL, CMOS, and ECL, and it operates on a single +5V power supply. It offers protection circuitry to ensure a safe and reliable operation and it can be used to drive both transistors and FETs. For these reasons, it is a popular choice for automotive, industrial, communication, and consumer electronics applications.

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