Overview
The ADUM7440ARQZ is a quad-channel digital isolator produced by Analog Devices Inc., utilizing the company's iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technologies to provide superior performance characteristics compared to optocoupler devices and other integrated couplers. It is approved by UL recognition, UL 1577: 1000V rms for 1 minute, ensuring high safety and reliability standards. The ADUM7440ARQZ is widely used in various applications requiring multichannel isolation, including general-purpose isolation, SPI interface/data converter isolation, and industrial field bus isolation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 4 | - |
| Package/Case | 16-lead QSOP | - |
| Data Rate | Up to 25 Mbps (NRZ) | Mbps |
| Supply Voltage | 3V to 5.5V | V |
| Voltage Isolation | 1000 V rms | V rms |
| Propagation Delay | 55 ns to 80 ns | ns |
| Pulse Width Distortion (PWD) | 10 ns to 25 ns | ns |
| Common-Mode Transient Immunity | >15 kV/μs | kV/μs |
| Operating Temperature | -40°C to +105°C | °C |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | - |
Key Features
- Bidirectional Communication: Supports bidirectional data transfer between isolated sides.
- 3V/5V Level Translation: Compatible with both 3V and 5V logic levels.
- High Common-Mode Transient Immunity: Greater than 15 kV/μs, ensuring robust performance in noisy environments.
- Low Power Operation: Low quiescent and dynamic supply currents.
- High Temperature Operation: Operates up to 105°C.
- Small Package: Compact 16-lead QSOP package.
Applications
- General-Purpose, Multichannel Isolation: Suitable for various isolation needs in industrial and commercial systems.
- SPI Interface/Data Converter Isolation: Ideal for isolating SPI interfaces and data converters.
- RS-232/RS-422/RS-485 Transceivers: Used in serial communication systems requiring isolation.
- Industrial Field Bus Isolation: Applies to industrial field bus systems such as Profibus, CAN, and others.
Q & A
- What is the ADUM7440ARQZ used for?
The ADUM7440ARQZ is a quad-channel digital isolator used for general-purpose, multichannel isolation, SPI interface/data converter isolation, and industrial field bus isolation.
- What is the maximum data rate of the ADUM7440ARQZ?
The maximum data rate of the ADUM7440ARQZ is up to 25 Mbps (NRZ).
- What is the voltage isolation rating of the ADUM7440ARQZ?
The voltage isolation rating of the ADUM7440ARQZ is 1000 V rms.
- What is the operating temperature range of the ADUM7440ARQZ?
The operating temperature range of the ADUM7440ARQZ is -40°C to +105°C.
- Does the ADUM7440ARQZ support bidirectional communication?
Yes, the ADUM7440ARQZ supports bidirectional communication.
- What is the package type of the ADUM7440ARQZ?
The package type of the ADUM7440ARQZ is a 16-lead QSOP.
- Is the ADUM7440ARQZ UL recognized?
Yes, the ADUM7440ARQZ is UL recognized, UL 1577: 1000V rms for 1 minute.
- What is the common-mode transient immunity of the ADUM7440ARQZ?
The common-mode transient immunity of the ADUM7440ARQZ is greater than 15 kV/μs.
- Does the ADUM7440ARQZ support 3V and 5V logic levels?
Yes, the ADUM7440ARQZ supports both 3V and 5V logic levels.
- What is the moisture sensitivity level (MSL) of the ADUM7440ARQZ?
The moisture sensitivity level (MSL) of the ADUM7440ARQZ is 1 (Unlimited).
