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MAX491ECSD+

Name: MAX491ECSD+
Rating: 4.7 (12 reviews)

IC TRANSCEIVER FULL 1/1 14SOIC

제조업체
Mfr.부분 #MAX491ECSD+
패키지
데이터시트 MAX491ECSD+ DataSheet
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사양

Part Status	Active
Type	Transceiver
Protocol	RS422, RS485
Number of Drivers/Receivers	1/1
Duplex	Full
Receiver Hysteresis	70 mV
Data Rate	2.5Mbps
Voltage - Supply	4.75V ~ 5.25V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package / Case	14-SOIC (0.154", 3.90mm Width)
Supplier Device Package	14-SOIC
Base Product Number	MAX491

개요

Description

The MAX491ECSD+ is a low-power, full-duplex RS-485/RS-422 transceiver designed for reliable data communication over long distances. It features a maximum data rate of 2.5 Mbps and provides a differential output voltage to minimize noise and ensure signal integrity. Operating from a single 5V supply, the device is ideal for applications in industrial automation, telecommunications, and data acquisition systems.
Key features include a wide common-mode voltage range, low power consumption (typically 120 µA in standby mode), and thermal shutdown protection. The MAX491ECSD+ supports multiple transceiver configurations, allowing up to 32 devices on the same bus. With its compact 8-pin SOIC package, it is suitable for space-constrained designs. Overall, the MAX491ECSD+ is a robust solution for implementing reliable communication in harsh environments.

Features

The MAX491ECSD+ is a low-power, dual differential line driver/receiver designed for RS-485 and RS-422 applications. Key features include:
1. Dual Functionality: Combines both line driver and receiver in a single package.
2. Low Power Consumption: Operates with a low supply current, making it suitable for battery-powered devices.
3. High Data Rate: Capable of supporting data rates up to 10 Mbps, facilitating fast communication.
4. Wide Voltage Range: Input voltage range from -7V to +12V, allowing flexibility in various systems.
5. Integrated Fail-Safe: Built-in fail-safe feature prevents false outputs in idle conditions.
6. Temperature Range: Operates over a wide temperature range from -40°C to +85°C, ensuring reliability in diverse environments.
7. Small Package: Offered in a compact 8-pin SOIC package, saving board space.
These features make the MAX491ECSD+ ideal for robust data communication in industrial and commercial environments.

Package

The MAX491ECSD+ is packaged in a thin SOT-23 (Small Outline Transistor) package, specifically designed for space-saving applications. This package type offers a compact footprint suitable for surface mounting.

Pinout

The MAX491ECSD+ is an RS-485/RS-422 transceiver with a pin count of 8. Its primary functions include enabling differential data transmission and reception over long distances, making it suitable for industrial applications and data communication networks.
Pin Functions:
1. 1 (A) - Non-inverting differential input/output
2. 2 (B) - Inverting differential input/output
3. 3 (R) - Receiver input (active low)
4. 4 (RO) - Receiver output (active high)
5. 5 (DE) - Driver enable (active high)
6. 6 (DI) - Driver input
7. 7 (GND) - Ground
8. 8 (VCC) - Supply voltage (typically +5V)
The device operates with a low power consumption and supports data rates up to 2.5 Mbps, making it efficient for various communication needs.

Manufacturer

The MAX491ECSD+ is manufactured by Analog Devices, Inc., specifically under its subsidiary, Maxim Integrated. Analog Devices is an American multinational semiconductor company headquartered in Norwood, Massachusetts. The company specializes in the design and manufacturing of a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. They cater to various industries, including automotive, communications, industrial automation, healthcare, and consumer electronics. The MAX491ECSD+ itself is a low-voltage, low-power, high-speed transceiver for RS-485/RS-422 communication, showcasing the company's commitment to providing innovative solutions for connectivity and data transmission.

Application

The MAX491ECSD+ is a low-voltage, dual RS-485/RS-422 transceiver ideal for industrial automation, data acquisition systems, and communications in harsh environments. It is used in applications requiring robust data transmission over long distances, such as factory automation, building control systems, and remote monitoring. Its features include high-speed data rates, low power consumption, and thermal protection, making it suitable for networked devices and multi-drop configurations.

Equivalent

The MAX491ECSD+ is a RS-485/RS-422 transceiver. Equivalent products include the SN75176B from Texas Instruments, LTC2862 from Analog Devices, and the ADM2483 from Analog Devices. Always check datasheets for specific features and specifications to ensure compatibility.