Overview
The ISO7420DR, manufactured by Texas Instruments, is a dual-channel digital isolator designed for applications requiring high-speed, low-power isolation. This product is part of the ISO7420 series and is widely used in industrial, automotive, and communication systems. Its key market positioning lies in its ability to provide reliable electrical isolation while maintaining high data integrity and low power consumption. The ISO7420DR is particularly suitable for environments where noise immunity and signal integrity are critical.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Channels | 2 | - | Unidirectional |
| Data Rate | 50 | Mb/s | - |
| Isolation Voltage | 2500 | Vrms | - |
| Isolation Type | Capacitive Coupling | - | - |
| Supply Voltage (Max) | 5 | V | - |
| Supply Voltage (Min) | 3.3 | V | - |
| Operating Current | 3.4 | mA | - |
| Propagation Delay | 9 | ns | - |
| Operating Temperature | -40 to +125 | °C | - |
| Package | SOIC-8 | - | Tube |
Key Features
- Dual-channel isolation for enhanced signal integrity.
- High-speed data transmission up to 50 Mb/s.
- Capacitive coupling isolation with 2500 Vrms rating.
- Low power consumption, making it ideal for battery-powered applications.
- Wide operating temperature range from -40°C to +125°C.
Applications
The ISO7420DR is widely used in industrial automation, automotive electronics, and communication systems. In industrial automation, it ensures reliable signal transmission in noisy environments. In automotive applications, it provides isolation for CAN bus and other communication interfaces. Additionally, it is used in medical devices and power supply systems where electrical isolation is critical.
Q & A
1. What is the isolation voltage of the ISO7420DR?
The ISO7420DR provides an isolation voltage of 2500 Vrms.
2. What is the maximum data rate supported by the ISO7420DR?
The maximum data rate is 50 Mb/s.
3. What is the operating temperature range of the ISO7420DR?
It operates from -40°C to +125°C.
4. How many channels does the ISO7420DR have?
It has two unidirectional channels.
5. What type of isolation does the ISO7420DR use?
It uses capacitive coupling isolation.
6. What is the typical propagation delay of the ISO7420DR?
The typical propagation delay is 9 ns.
7. What are the supply voltage requirements for the ISO7420DR?
It requires a supply voltage between 3.3 V and 5 V.
8. Is the ISO7420DR suitable for automotive applications?
Yes, it is widely used in automotive electronics for isolation purposes.
9. What is the package type of the ISO7420DR?
It comes in an SOIC-8 package.
10. Can the ISO7420DR be used in medical devices?
Yes, its high isolation voltage and reliability make it suitable for medical applications.
