ISO7221AD

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DGTL ISOLTR 2.5KV 2CH GP 8-SOIC

  • FabricanteTexas Instruments

  • Peça do Fabricante #ISO7221AD

  • Ficha Técnica ISO7221AD DataSheet

  • Em Estoque20386

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Especificações

Atributo Valor
PartStatus Obsolete
BaseProductNumber ISO7221
Technology Capacitive Coupling
Type General Purpose
IsolatedPower No
NumberofChannels 2
Inputs-Side1/Side2 1/1
ChannelType Unidirectional
Voltage-Isolation 2500Vrms
CommonModeTransientImmunity(Min) 25kV/µs
DataRate 1Mbps
PropagationDelaytpLH/tpHL(Max) 475ns, 475ns
PulseWidthDistortion(Max) 14ns
Rise/FallTime(Typ) 1ns, 1ns
Voltage-Supply 3V ~ 5.5V
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package 8-SOIC (0.154", 3.90mm Width)
SupplierDevicePackage 8-SOIC
Packaging Tube

Visão Geral

Description

The ISO7221AD is a high-performance digital isolator manufactured by Texas Instruments. It is part of the ISO7221 series, which offers two-channel isolators designed to provide galvanic isolation for digital communication interfaces. The "AD" variant typically refers to specific features or configurations within the ISO7221 series, such as data rate, isolation voltage, and packaging.
Key features of the ISO7221AD include:
1. Isolation: Provides galvanic isolation up to 2500 VRMS, enhancing safety and signal integrity by preventing ground loops and reducing noise interference.

2. Data Rate: Supports data transmission speeds up to 150 Mbps, making it suitable for high-speed communication applications.
3. Channel Configuration: Typically, it includes two channels that can be used in various configurations, such as dual forward or reverse channels, depending on the application needs.
4. Low Power Consumption: Designed for efficient operation with reduced power requirements, contributing to energy savings.
5. Applications: Used in a variety of applications including industrial automation, motor control, and any systems requiring reliable digital isolation to protect components and maintain signal integrity.

Equivalent

The ISO7221AD is a dual-channel digital isolator from Texas Instruments. Equivalent products include:
1. ADuM1200/ADuM1201 from Analog Devices
2. Si8620/Si8621 from Silicon Labs
3. MAX14930/MAX14931 from Maxim Integrated
These alternatives may vary slightly in specifications, so it's important to verify parameters like data rate, isolation voltage, and channel configuration to ensure compatibility with your application.

Features

The ISO7221AD is a digital isolator designed by Texas Instruments, featuring the following key attributes:
1. Isolation Technology: It uses silicon dioxide (SiO2) insulation to provide galvanic isolation, which is crucial for breaking ground loops and protecting data lines.
2. Channel Configuration: The device offers two unidirectional channels, providing flexible data transmission paths.
3. Data Rate: It supports data rates up to 25 Mbps, suitable for high-speed communication applications.
4. Isolation Voltage: The ISO7221AD provides a high isolation voltage rating, typically up to 2500 VRMS, ensuring robust protection against electrical surges.
5. Low Power Consumption: The device is designed to operate with low power consumption, enhancing energy efficiency in electronic systems.
6. Wide Supply Voltage Range: It supports a wide supply voltage range, allowing integration into various systems with different voltage requirements.
7. Package: Available in a small SOIC-8 package, facilitating compact PCB designs.
8. Temperature Range: It operates effectively over a wide temperature range, making it suitable for diverse environmental conditions.
These features make the ISO7221AD ideal for industrial, automotive, and communication applications requiring reliable signal isolation.

Pinout

The ISO7221AD is a digital isolator with a dual-channel configuration. It has an 8-pin configuration. Here is a brief overview of its pin functions:
1. VCC1 (Pin 1): Supply voltage for the side 1 logic circuit.
2. IN1 (Pin 2): Input for channel 1.
3. GND1 (Pin 3): Ground for side 1.
4. IN2 (Pin 4): Input for channel 2.
5. GND2 (Pin 5): Ground for side 2.
6. OUT2 (Pin 6): Output for channel 2.
7. OUT1 (Pin 7): Output for channel 1.
8. VCC2 (Pin 8): Supply voltage for the side 2 logic circuit.
The ISO7221AD provides isolation between its input and output, making it suitable for applications requiring noise immunity and signal integrity across different voltage domains.

Manufacturer

The ISO7221AD is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are sold to electronics designers and manufacturers globally. The company is known for its analog chips and embedded processors, which are used in a wide array of electronic devices. TI operates in several markets, including industrial, automotive, personal electronics, communications equipment, and enterprise systems. The ISO7221AD itself is a digital isolator, which is used in electronics to provide safe signal transmission between two isolated circuits. Texas Instruments is a well-established leader in the semiconductor industry with a strong emphasis on innovation and engineering expertise.

Application

The ISO7221AD is a digital isolator commonly used in applications requiring electrical isolation and signal integrity. Key application areas include:
1. Industrial Automation: Ensures safe communication between control systems and high-voltage equipment.
2. Power Electronics: Isolates low-voltage control circuits from high-voltage power stages, improving safety and reliability.
3. Medical Equipment: Provides patient safety by isolating patient-connected devices from electrical systems.
4. Renewable Energy Systems: Facilitates secure data transmission in solar inverters and wind turbines.
5. Telecommunications: Ensures stable signal transmission in systems prone to ground potential differences.
These applications benefit from the device's ability to transmit digital signals across an isolation barrier with high speed and low power consumption.

Package

The ISO7221AD is a digital isolator from Texas Instruments. It is typically available in an SOIC (Small Outline Integrated Circuit) package, which is an 8-pin configuration. This package is designed for surface mounting on a printed circuit board (PCB).

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