LTC485IS8

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Especificações

Atributo Valor
Brand Analog Devices
Product Type RS-485 Interface IC
Subcategory Interface ICs
Series LTC485
Operating Supply Current 500 uA
Package / Case SOIC-8
Mounting Style SMD/SMT
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Description

The LTC485IS8 is a high-speed, low-power differential line transceiver designed for RS485 and RS422 communication standards. It features a wide operating voltage range of 3V to 5.5V, making it suitable for a variety of applications, including data communication and networking.
Key features include a maximum data rate of 2.5 Mbps, low power consumption, and a fail-safe design that ensures a known state when the inputs are left floating. The LTC485IS8 also incorporates thermal shutdown and short-circuit protection, enhancing its reliability in harsh environments.
The device supports multipoint communication, allowing multiple transceivers to share a common bus, which is essential in industrial and automotive applications. Its small package and robust performance make it ideal for space-constrained designs.
Overall, the LTC485IS8 is a versatile solution for robust and efficient data transmission in various applications, combining high speed with low power consumption and reliability.

Equivalent

Equivalent products to the LTC485IS8 chip include the SN75176, MAX1343, and ADM2483. These chips also serve as RS-485/RS-422 transceivers, providing similar functionality in differential signaling applications. Always verify the specific electrical characteristics and pin configurations to ensure compatibility for your application.

Features

The LTC485IS8 is a low-power, differential transceiver designed for RS-485 and RS-422 communications. Key features include:
1. Low Power Consumption: Operates with a supply voltage of 3.0V to 5.5V, drawing less than 120 µA in power-down mode.
2. High Data Rate: Capable of transmitting data at speeds up to 2.5 Mbps.
3. Differential Signaling: Provides robust noise immunity and allows for long-distance communication (up to 4000 feet).
4. Multi-Point Communication: Supports up to 32 transceivers on a single bus, making it suitable for multi-drop applications.
5. Thermal Shutdown: Includes an internal thermal shutdown feature for enhanced reliability.
6. Wide Temperature Range: Operates effectively across a temperature range of -40°C to +85°C.
7. Low Input/Output Voltage Swing: Designed for reduced electromagnetic interference (EMI).
8. Small Package: Available in an 8-lead SOIC package, ideal for space-constrained applications.
These features make the LTC485IS8 suitable for industrial, automotive, and telecommunications applications.

Pinout

The LTC485IS8 is an RS485/RS422 transceiver with an 8-pin configuration. Its pin functions are as follows:
1. A - Non-inverting input/output (for differential signaling).
2. B - Inverting input/output (for differential signaling).
3. Y - Receiver output; indicates the status of the received data.
4. Z - Receiver input; connects to the differential signal.
5. GND - Ground reference for the device.
6. VCC - Positive supply voltage (typically 3.0V to 5.5V).
7. RO - Receiver output (logic level output for data).
8. RE - Receiver enable; active low control pin to enable or disable the receiver.
This transceiver is designed for half-duplex communication, suitable for multi-point data transmission in industrial applications.

Manufacturer

The LTC485IS8 is manufactured by Analog Devices, Inc. (ADI), a prominent global company specializing in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Analog Devices, founded in 1965, is known for its high-performance analog and mixed-signal solutions that are used in a wide range of applications, including communications, industrial automation, automotive electronics, and consumer electronics. The LTC485IS8 is a low-power, half-duplex RS-485 transceiver, commonly utilized in data communication systems. ADI focuses on innovation and technology development, serving various sectors with robust and reliable semiconductor products.

Application

The LTC485IS8 is a low-power, differential line transceiver ideal for applications in industrial control systems, automated test equipment, and data acquisition systems. It is commonly used in RS-485 and RS-422 communication networks for long-distance data transmission, offering robust noise immunity. Additional application areas include building automation, remote sensor networks, and multi-drop communication setups. Its low power consumption and high data rates make it suitable for battery-operated devices and telemetry systems.

Package

The LTC485IS8 is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package.

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