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MAX3485ESA+T

Name: MAX3485ESA+T
Rating: 4.7 (12 reviews)

IC TRANSCEIVER HALF 1/1 8SOIC

メーカー
Mfr。パート #MAX3485ESA+T
パッケージ 8-SOIC (0.154, 3.90mm Width)
データシート
在庫中5563

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仕様

Supplier	Analog Devices Inc./Maxim Integrated
Package	Tape & Reel (TR)
ProductStatus	Obsolete
Type	Transceiver
Protocol	RS422, RS485
NumberofDrivers/Receivers	1/1
Duplex	Half
ReceiverHysteresis	50 mV
DataRate	10Mbps
Voltage-Supply	3V ~ 3.6V
OperatingTemperature	-40°C ~ 85°C
MountingType	Surface Mount
Package/Case	8-SOIC (0.154, 3.90mm Width)

概要

Description

The MAX3485ESA+T is a low-power, half-duplex RS-485/RS-422 transceiver designed for data communication in noisy environments. It operates with a supply voltage range of 3.0V to 5.5V and is capable of data rates up to 2.5 Mbps. This device features a small, 8-pin SOIC package, making it suitable for space-constrained applications.
The MAX3485ESA+T is equipped with built-in fail-safe mechanisms that ensure reliable operation by maintaining a known state when the bus is idle or if the receiver inputs are floating. It also includes a low-power sleep mode, significantly reducing power consumption in idle conditions.
The transceiver is ideal for multipoint communication in industrial automation, building automation, and other data transmission applications over long distances. Its robust design allows for reliable data transmission over twisted-pair cabling, making it a popular choice among engineers for RS-485 networks.

Features

The MAX3485ESA+T is a low-power, differential transceiver for RS-485 and RS-422 communication. Key features include:
1. Low Power Consumption: Operates with a low supply current of 120 µA in active mode and less than 1 µA in shutdown mode.
2. Data Rates: Supports data rates up to 2.5 Mbps, suitable for high-speed communication.
3. Transmitter and Receiver: Contains a driver with a 1/8 unit load, allowing up to 32 transceivers on the bus.
4. Wide Voltage Range: Operates from a 3.3V to 5.5V power supply, providing versatility in design.
5. Fail-Safe Design: Includes built-in fail-safe features to ensure a known state in the absence of a valid input.
6. Enhanced Noise Immunity: Differential signaling helps reduce noise and improve signal integrity over long distances.
7. Compact Package: Available in an 8-pin SOIC package for space-constrained applications.

These features make the MAX3485ESA+T suitable for various industrial and commercial communication applications.

Package

The MAX3485ESA+T is packaged in a 8-pin SOIC (Small Outline Integrated Circuit) package. This surface-mount package is designed for efficient use of space on printed circuit boards.

Pinout

The MAX3485ESA+T is a low-power, half-duplex RS-485 transceiver with a pin count of 8. Its primary functions include enabling communication over long distances in noisy environments, making it suitable for multi-point data transmission.
Pin Functions:
1. A (Pin 1): Non-inverting differential output.
2. B (Pin 2): Inverting differential output.
3. RO (Pin 3): Receiver output, providing the received data.
4. RE (Pin 4): Receiver enable (active low); when low, the receiver is enabled.
5. DE (Pin 5): Driver enable (active high); when high, the driver is enabled.
6. DI (Pin 6): Driver input; data input to the driver.
7. GND (Pin 7): Ground connection.
8. VCC (Pin 8): Supply voltage (typically +5V).
The device is designed for high-speed data rates up to 2.5 Mbps, making it ideal for industrial automation and control applications.

Manufacturer

The MAX3485ESA+T is manufactured by Maxim Integrated, which is a semiconductor company specializing in analog and mixed-signal integrated circuits. Founded in 1983, Maxim Integrated focuses on providing innovative solutions for various applications, including data communications, automotive, industrial, healthcare, and consumer electronics. The company is known for its expertise in power management, signal processing, and interface products. In 2021, Maxim Integrated was acquired by Analog Devices, Inc., further enhancing its product offerings and market reach in the semiconductor industry.

Application

The MAX3485ESA+T is a low-power, half-duplex RS-485/RS-422 transceiver used in various applications, including industrial automation, motor control, and data acquisition systems. It is ideal for long-distance communication in noisy environments, supporting multi-point networks. Common uses include building automation, remote sensor networks, and telecommunications. Its robustness makes it suitable for environments with high electromagnetic interference.

Equivalent

The MAX3485ESA+T is a low-power RS-485/RS-422 transceiver. Equivalent products include the SN75176, SP485, and ADM2483. These chips provide similar functionality for differential signaling and can be used in various applications requiring data transmission over long distances. Always check specifications for compatibility in your specific circuit design.