CAD Models 

MAX491EESD+   Symbol

MAX491EESD+   Footprint

Product Attributes

Lifecycle Status Indicator

MAX491EESD+   Lifecycle Status Indicator

Overview

The MAX481E, MAX483E, MAX485E, MAX487E- MAX491E, and MAX1487E are low-power transceivers for RS-485 and RS-422 communications in harsh environments. Each driver output and receiver input is protected against ±15kV electro-static discharge (ESD) shocks, without latchup. These parts contain one driver and one receiver. The MAX483E, MAX487E, MAX488E, and MAX489E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, thus allowing error-free data transmission up to 250kbps. The driver slew rates of the MAX481E, MAX485E, MAX490E, MAX491E, and MAX1487E are not limited, allowing them to transmit up to 2.5Mbps.

These transceivers draw as little as 120µA supply current when unloaded or when fully loaded with disabled drivers (see Selector Guide). Additionally, the MAX481E, MAX483E, and MAX487E have a low-current shutdown mode in which they consume only 0.5µA. All parts operate from a single +5V supply.

Drivers are short-circuit current limited, and are protected against excessive power dissipation by thermal shutdown circuitry that places their outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit.

The MAX487E and MAX1487E feature quarter-unit-load receiver input impedance, allowing up to 128 transceivers on the bus. The MAX488E-MAX491E are designed for full-duplex communications, while the MAX481E, MAX483E, MAX485E, MAX487E, and MAX1487E are designed for half-duplex applications. For applications that are not ESD sensitive see the pinand function-compatible MAX481, MAX483, MAX485, MAX487-MAX491, and MAX1487.

Advantages and Disadvantages

There is no relevant information available for this part yet.

Applications

● Industrial-Control Local Area Networks

● Level Translators

● Low-Power RS-422 Transceivers

● Low-Power RS-485 Transceivers

● Transceivers for EMI-Sensitive Applications

Dimensions

Compliance

ECCN / UNSPSC

Documents & Media

Product Manufacturer

Maxim Integratedis an American, publicly traded company that designs, manufactures, and sells analog and mixed-signal integrated circuits.

Maxim Integrated develops integrated circuits (ICs) for the automotive, industrial, communications, consumer, and computing markets. The company is headquartered in San Jose, California, and has design centers, manufacturing facilities, and sales offices throughout the world. In the fiscal year 2018, it had US$2.48 billion in sales, 7150 employees, and 35,000 customers worldwide. Maxim is a Fortune 1000 company and its stock is a component of the NASDAQ-100 stock market index.

Maxim's product portfolio now includes power and battery management ICs, sensors, analog ICs, interface ICs, communications solutions, digital ICs, embedded security, and microcontrollers. In these product segments, the company has made some notable achievements.

Analog ICs are a core product area for Maxim. These high-performance building blocks provide a variety of features and capabilities, from ultra-low power consumption to extended battery life, precision signal conversion, and rugged connectivity. A highlight in 2018 for this versatile product line was the electronica 2018 trade show, where attendees saw demos including a nanoPower watch, force-touch technology, CAN ESD protection, and an ISM RF transmitter-based home automation system.

Product Range

Distributors

Alternative Models

Popularity by Region

MAX491EESD+   Popularity by Region

Market Price Analysis

MAX491EESD+   Market Price Analysis