Overview
The ADUM7442CRQZ is a quad-channel digital isolator developed by Analog Devices Inc. This device is designed to provide reliable isolation for high-voltage applications, ensuring secure and accurate signal transmission across the isolation barrier. It features Analog Devices' iCoupler technology, which utilizes magnetic coupling to achieve high-speed data transmission with minimal latency and low power consumption. The ADUM7442CRQZ is particularly suited for applications requiring compact design, high common-mode transient immunity, and a wide operating temperature range.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package / Case | QSOP-16 | |
| Number of Channels | 4 | |
| Isolation Voltage | 1000 Vrms | |
| Isolation Type | Magnetic Coupling | |
| Supply Voltage - Max | 5.5 V | |
| Supply Voltage - Min | 3 V | |
| Data Rate | 25 Mb/s | |
| Propagation Delay Time | 50 ns | |
| Minimum Operating Temperature | -40°C | |
| Maximum Operating Temperature | +105°C | |
| Maximum Rise/Fall Time | 2.8 ns (Typ) | |
| Common-Mode Transient Immunity | 15 kV/µs |
Key Features
- Compact and lightweight design with a small form factor, saving space in applications.
- High-speed CMOS technology enabling fast data transmission up to 25 Mbps.
- Low power consumption, with supply currents as low as 1.5 mA per channel at 0 Mbps to 1 Mbps for 3.3 V operation.
- High common-mode transient immunity of 15 kV/µs.
- Input glitch filter to protect against extraneous noise disturbances.
- Wide operating temperature range from -40°C to +105°C.
- Safety and regulatory approvals, including UL 1577 and CSA standards.
Applications
The ADUM7442CRQZ is commonly used in various applications requiring reliable digital isolation, such as:
- Industrial automation and control systems.
- Power supply control and motor drive systems.
- Medical equipment and devices.
- Automotive systems, including communication and sensor interfaces.
- High-speed communication buses and interfaces.
Q & A
- What is the isolation voltage rating of the ADUM7442CRQZ?
The ADUM7442CRQZ has an isolation voltage rating of 1000 Vrms. - How many channels does the ADUM7442CRQZ provide?
The ADUM7442CRQZ provides four independent isolation channels. - What is the maximum data rate supported by the ADUM7442CRQZ?
The ADUM7442CRQZ supports data rates up to 25 Mbps. - What is the operating temperature range of the ADUM7442CRQZ?
The operating temperature range is from -40°C to +105°C. - What type of isolation does the ADUM7442CRQZ use?
The ADUM7442CRQZ uses magnetic coupling for isolation. - What are the supply voltage ranges for the ADUM7442CRQZ?
The supply voltage ranges from 3 V to 5.5 V. - Does the ADUM7442CRQZ have any regulatory approvals?
Yes, it has approvals such as UL 1577 and CSA standards. - What is the typical rise and fall time of the ADUM7442CRQZ?
The typical rise and fall time is 2.8 ns. - How does the ADUM7442CRQZ protect against noise disturbances?
The ADUM7442CRQZ includes an input glitch filter to protect against extraneous noise disturbances. - What is the common-mode transient immunity of the ADUM7442CRQZ?
The common-mode transient immunity is 15 kV/µs.
