Overview
The ISO7742DW, manufactured by Texas Instruments, is a high-performance, quad-channel digital isolator designed for robust and reliable signal isolation in various electronic systems. This component is part of the ISO774x series, which is known for its excellent electromagnetic compatibility (EMC) performance and high-speed data transmission capabilities. The ISO7742DW is particularly suited for applications requiring stringent isolation and noise immunity, such as industrial automation, medical equipment, and automotive electronics. Its market positioning targets engineers and designers who need reliable isolation solutions with minimal power consumption and high data integrity.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Data Rate | 100 | Mbps | |
| Isolation Voltage | 5000 | Vrms | |
| CMTI (Common Mode Transient Immunity) | ±100 | kV/µs | |
| Supply Voltage | 2.25 to 5.5 | V | |
| Propagation Delay | 10.7 | ns | Typical |
| Operating Temperature | -55 to 125 | °C | |
| Package | 16-SOIC |
Key Features
- High-speed data transmission up to 100 Mbps.
- Robust isolation barrier with a 5000 Vrms rating and a lifetime exceeding 30 years at 1500 Vrms.
- Excellent EMC performance, including system-level ESD, EFT, and surge immunity.
- Low power consumption, typically 1.5 mA per channel at 1 Mbps.
- Wide supply voltage range (2.25 V to 5.5 V) for versatile applications.
Applications
The ISO7742DW is widely used in applications requiring high-speed and reliable signal isolation. In industrial automation, it ensures noise-free communication between control systems and sensors. In medical equipment, it provides safe isolation for patient-connected devices. Automotive electronics benefit from its robust performance in harsh environments, ensuring reliable communication between electronic control units (ECUs). Additionally, it is used in power supply systems, motor control, and communication interfaces where signal integrity and isolation are critical.
Q & A
What is the maximum data rate of the ISO7742DW?
The ISO7742DW supports a maximum data rate of 100 Mbps.
What is the isolation voltage rating of the ISO7742DW?
The isolation voltage rating is 5000 Vrms.
What is the typical propagation delay of the ISO7742DW?
The typical propagation delay is 10.7 ns.
What is the operating temperature range of the ISO7742DW?
The operating temperature range is -55°C to 125°C.
What is the supply voltage range for the ISO7742DW?
The supply voltage range is 2.25 V to 5.5 V.
What package does the ISO7742DW come in?
The ISO7742DW is available in a 16-SOIC package.
What is the CMTI (Common Mode Transient Immunity) of the ISO7742DW?
The CMTI is ±100 kV/µs.
What are the key applications of the ISO7742DW?
Key applications include industrial automation, medical equipment, automotive electronics, and power supply systems.
Does the ISO7742DW support low power consumption?
Yes, it typically consumes 1.5 mA per channel at 1 Mbps.
What certifications does the ISO7742DW hold?
It is certified under UL 1577, IEC 61010-1, IEC 62368-1, IEC 60601-1, and GB 4943.1.
