Overview
The ADUM1445ARQZ from Analog Devices Inc. is a micropower, quad-channel digital isolator that utilizes the company's iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technologies to provide superior performance characteristics compared to traditional optocoupler devices. It is designed for low-power, multichannel isolation applications and is approved by various safety standards including UL 1577, CSA, VDE, and IECEx/ATEX intrinsic safety certifications. The ADUM1445ARQZ operates over a wide temperature range of −40°C to +125°C and is available in a 16-lead QSOP package.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Channels | 4 | ||
| Supply Voltage | 2.25 V to 3.6 V | V | |
| Data Rate | 2 Mbps | ||
| Isolation Voltage | 2500 Vrms | Vrms | For QSOP package |
| Propagation Delay | 180 ns | ns | At 3.3 V |
| Common Mode Transient Immunity | 25 kV/µs to 40 kV/µs | kV/µs | Typical |
| Operating Temperature Range | −40°C to +125°C | °C | |
| Package Type | 16-lead QSOP | ||
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Key Features
- High-speed data transfer up to 2 Mbps
- Magnetic coupling technology for high isolation voltage (2500 Vrms)
- Low power consumption with quiescent current as low as 0.05 µA per channel
- High common-mode transient immunity (25 kV/µs to 40 kV/µs)
- Bidirectional communication capability
- Operating temperature range of −40°C to +125°C
- Compact 16-lead QSOP package, saving board space
- Compliant with various safety standards including UL 1577, CSA, VDE, and IECEx/ATEX
Applications
- General-purpose, low-power multichannel isolation
- 1 MHz low-power peripheral interface (SPI)
- 4 mA to 20 mA loop process controls
- Industrial control systems
- Medical devices requiring high isolation
- Automotive systems
Q & A
- What is the ADUM1445ARQZ used for?
The ADUM1445ARQZ is used for general-purpose, low-power multichannel isolation in various applications, including industrial control systems, medical devices, and automotive systems.
- What is the maximum data rate of the ADUM1445ARQZ?
The maximum data rate of the ADUM1445ARQZ is 2 Mbps.
- What is the isolation voltage of the ADUM1445ARQZ?
The isolation voltage of the ADUM1445ARQZ is 2500 Vrms for the QSOP package.
- What is the operating temperature range of the ADUM1445ARQZ?
The operating temperature range of the ADUM1445ARQZ is −40°C to +125°C.
- What type of package does the ADUM1445ARQZ come in?
The ADUM1445ARQZ comes in a 16-lead QSOP package.
- Is the ADUM1445ARQZ compliant with any safety standards?
Yes, the ADUM1445ARQZ is compliant with various safety standards including UL 1577, CSA, VDE, and IECEx/ATEX.
- What is the common-mode transient immunity of the ADUM1445ARQZ?
The common-mode transient immunity of the ADUM1445ARQZ is 25 kV/µs to 40 kV/µs.
- How much power does the ADUM1445ARQZ consume?
The ADUM1445ARQZ has a low power consumption with quiescent current as low as 0.05 µA per channel.
- Does the ADUM1445ARQZ support bidirectional communication?
Yes, the ADUM1445ARQZ supports bidirectional communication.
- What is the moisture sensitivity level (MSL) of the ADUM1445ARQZ?
The moisture sensitivity level (MSL) of the ADUM1445ARQZ is 1 (Unlimited).
