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ISO7421DR
+NomenclatureDGTL ISOLTR 2.5KV 2CH GP 8-SOIC
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FabricantTexas Instruments
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Pièce fabricant #ISO7421DR
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Fiche technique ISO7421DR DataSheet
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En stock5394
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Spécifications
| Attribut | Valeur |
| PartStatus | Active |
| 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) | 14ns, 14ns |
| PulseWidthDistortion(Max) | 3.7ns |
| Rise/FallTime(Typ) | 1ns, 1ns |
| Voltage-Supply | 3.15V ~ 3.45V, 4.75V ~ 5.25V |
| OperatingTemperature | -40°C ~ 105°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154", 3.90mm Width) |
| SupplierDevicePackage | 8-SOIC |
| BaseProductNumber | ISO7421 |
Présentation
Description
The ISO7421DR is a dual-channel digital isolator manufactured by Texas Instruments. It is part of the ISO742x series, designed to provide electrical isolation and signal integrity in digital communication systems. The device offers galvanic isolation of up to 2.5 kV RMS, making it suitable for applications where safety and noise immunity are crucial.
Key features of the ISO7421DR include a high data rate of up to 25 Mbps, low power consumption, and a wide supply voltage range from 3.0 V to 5.5 V. It supports both unidirectional and bidirectional data transmission, making it versatile for various interfacing needs. The device is commonly used in industrial automation, medical equipment, and any systems requiring secure data transmission across an isolation barrier.
The ISO7421DR helps in reducing ground loops and preventing signal distortion due to noise, ensuring reliable and safe operation in complex environments. It is available in a small SOIC-8 package, facilitating easy integration into circuit designs.
Key features of the ISO7421DR include a high data rate of up to 25 Mbps, low power consumption, and a wide supply voltage range from 3.0 V to 5.5 V. It supports both unidirectional and bidirectional data transmission, making it versatile for various interfacing needs. The device is commonly used in industrial automation, medical equipment, and any systems requiring secure data transmission across an isolation barrier.
The ISO7421DR helps in reducing ground loops and preventing signal distortion due to noise, ensuring reliable and safe operation in complex environments. It is available in a small SOIC-8 package, facilitating easy integration into circuit designs.
Equivalent
The ISO7421DR is a dual-channel digital isolator from Texas Instruments. Equivalent products include:
1. ADuM1201 by Analog Devices – Dual-channel digital isolator.
2. SI8621 by Silicon Labs – Dual-channel digital isolator with similar specifications.
3. MAX12932 by Maxim Integrated – Dual-channel digital isolator that offers similar isolation capabilities.
When choosing an equivalent, ensure compatibility in terms of isolation voltage, data rate, and package type.
1. ADuM1201 by Analog Devices – Dual-channel digital isolator.
2. SI8621 by Silicon Labs – Dual-channel digital isolator with similar specifications.
3. MAX12932 by Maxim Integrated – Dual-channel digital isolator that offers similar isolation capabilities.
When choosing an equivalent, ensure compatibility in terms of isolation voltage, data rate, and package type.
Features
The ISO7421DR is a dual-channel digital isolator designed to provide galvanic isolation for digital signals. Key features include:
1. Isolation Voltage: It offers a high isolation voltage of typically 2500 VRMS for 1 minute.
2. Data Rate: Supports data rates up to 1 Mbps, making it suitable for a range of applications that require moderate speed.
3. Propagation Delay: Exhibits low propagation delay, usually around 10 ns, ensuring timely data transmission.
4. Channel Configuration: The device is available in a two-channel bi-directional configuration.
5. Supply Voltage: Operates over a wide supply voltage range, typically 3.0 to 5.5 V.
6. Noise Immunity: Provides robust noise immunity, making it suitable for harsh environments.
7. Temperature Range: Supports a wide operating temperature range from -40°C to +125°C.
8. Package: Available in a standard SOIC-8 package, facilitating easy integration into various circuit designs.
These features make the ISO7421DR ideal for applications that require reliable digital signal isolation, such as industrial automation, data acquisition systems, and medical equipment.
1. Isolation Voltage: It offers a high isolation voltage of typically 2500 VRMS for 1 minute.
2. Data Rate: Supports data rates up to 1 Mbps, making it suitable for a range of applications that require moderate speed.
3. Propagation Delay: Exhibits low propagation delay, usually around 10 ns, ensuring timely data transmission.
4. Channel Configuration: The device is available in a two-channel bi-directional configuration.
5. Supply Voltage: Operates over a wide supply voltage range, typically 3.0 to 5.5 V.
6. Noise Immunity: Provides robust noise immunity, making it suitable for harsh environments.
7. Temperature Range: Supports a wide operating temperature range from -40°C to +125°C.
8. Package: Available in a standard SOIC-8 package, facilitating easy integration into various circuit designs.
These features make the ISO7421DR ideal for applications that require reliable digital signal isolation, such as industrial automation, data acquisition systems, and medical equipment.
Pinout
The ISO7421DR is a dual-channel digital isolator with a total of 8 pins. It is designed to provide galvanic isolation between different sections of a digital circuit. Here's a brief overview of its pin functions:
1. Pin 1 (VCC1): Supply voltage for side 1.
2. Pin 2 (IN1): Input for channel 1.
3. Pin 3 (IN2): Input for channel 2.
4. Pin 4 (GND1): Ground reference for side 1.
5. Pin 5 (GND2): Ground reference for side 2.
6. Pin 6 (OUT2): Output for channel 2.
7. Pin 7 (OUT1): Output for channel 1.
8. Pin 8 (VCC2): Supply voltage for side 2.
The device is used to protect systems from high voltages, noise, or ground differences, by providing an electrical barrier between different parts of a circuit. Each channel can transmit data up to a specified data rate, ensuring robust communication across the isolation barrier.
1. Pin 1 (VCC1): Supply voltage for side 1.
2. Pin 2 (IN1): Input for channel 1.
3. Pin 3 (IN2): Input for channel 2.
4. Pin 4 (GND1): Ground reference for side 1.
5. Pin 5 (GND2): Ground reference for side 2.
6. Pin 6 (OUT2): Output for channel 2.
7. Pin 7 (OUT1): Output for channel 1.
8. Pin 8 (VCC2): Supply voltage for side 2.
The device is used to protect systems from high voltages, noise, or ground differences, by providing an electrical barrier between different parts of a circuit. Each channel can transmit data up to a specified data rate, ensuring robust communication across the isolation barrier.
Manufacturer
The ISO7421DR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide array of electronic components, including integrated circuits, microcontrollers, and sensors. TI is known for its innovative solutions in analog and embedded processing, serving industries such as automotive, industrial, consumer electronics, and communications equipment. The company is headquartered in Dallas, Texas, and has a significant presence worldwide.
Application
The ISO7421DR is a digital isolator used primarily in applications requiring electrical isolation between different system components. Key application areas include:
1. Industrial Automation: Protects circuits from voltage spikes and noise in factory environments.
2. Communication Systems: Isolates communication lines to prevent signal distortion.
3. Power Electronics: Provides isolation in AC/DC and DC/DC converters to enhance safety and performance.
4. Medical Equipment: Ensures patient safety by isolating patient-connected equipment from power surges.
5. Renewable Energy: Used in solar inverters and wind turbines for reliable signal transmission across isolated domains.
These applications benefit from reduced electromagnetic interference and enhanced data integrity.
1. Industrial Automation: Protects circuits from voltage spikes and noise in factory environments.
2. Communication Systems: Isolates communication lines to prevent signal distortion.
3. Power Electronics: Provides isolation in AC/DC and DC/DC converters to enhance safety and performance.
4. Medical Equipment: Ensures patient safety by isolating patient-connected equipment from power surges.
5. Renewable Energy: Used in solar inverters and wind turbines for reliable signal transmission across isolated domains.
These applications benefit from reduced electromagnetic interference and enhanced data integrity.
Package
The ISO7421DR is a digital isolator from Texas Instruments. It comes in an 8-pin SOIC (Small Outline Integrated Circuit) package. This type of package is known for its compact form factor, making it suitable for surface-mount technology (SMT) applications.
