Overview
The ADUM1442ARQZ, produced by Analog Devices Inc., is a quad-channel digital isolator that combines high-speed CMOS and monolithic air core transformer technologies. This component is part of the ADuM1440/ADuM1441/ADuM1442 family and is known for its outstanding performance characteristics, surpassing traditional optocoupler devices. It offers ultralow power operation, high data rates, and robust isolation, making it suitable for a wide range of applications requiring reliable and efficient signal isolation.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Input Threshold Logic High | VIH | 0.7 VDDx1 | V | |||
| Input Threshold Logic Low | VIL | 0.3 VDDx1 | V | |||
| Output Voltages Logic High | VOH | VDDx1 - 0.1 | 2.5 | V | IOx = -20 µA, VIx = VIxH | |
| Output Voltages Logic Low | VOL | 0.0 | 0.1 | V | IOx = 20 µA, VIx = VIxL | |
| Input Current per Channel | II | -1 | 0.01 | 1 | µA | 0 V ≤ VIx ≤ VDDx1 |
| Supply Current per Channel (Quiescent) | IDDI (Q) | 2.6 | 3.3 | µA | ENX low, 3.3 V operation | |
| Supply Current per Channel (Quiescent, Refresh Off) | IDDI (Q) | 0.05 | µA | ENX high, 3.3 V operation | ||
| Data Rate | 2 Mbps | |||||
| Common-Mode Transient Immunity | |CM| | 25 | 40 | kV/µs | VIx = VDDx1, VCM = 1000 V, transient magnitude = 800 V | |
| Operating Temperature | -40°C | 125°C | °C | |||
| Package Type | 16-Lead QSOP |
Key Features
- Ultralow Power Operation: The ADUM1442ARQZ offers quiescent current as low as 0.3 µA per channel when refresh is disabled and 5.6 µA per channel when refresh is enabled.
- High Data Rate: Supports data rates up to 2 Mbps (NRZ).
- High Common-Mode Transient Immunity: Provides immunity to common-mode transients greater than 25 kV/µs.
- Small Package: Available in a compact 16-lead QSOP package, freeing up to 70% of board space compared to wide body SOIC packages.
- Bidirectional Communication: Supports bidirectional communication, enhancing flexibility in system design.
- High Temperature Operation: Operates reliably up to 125°C, making it suitable for high-temperature environments.
- Safety and Regulatory Approvals: Compliant with UL 1577, CSA, and VDE certifications, ensuring safety and regulatory compliance).
Applications
- Industrial I/O: Suitable for industrial control systems and automation where reliable signal isolation is crucial.
- Automotive Interfaces: Used in automotive systems such as CAN, audio, and Ethernet interfaces).
- Medical Devices: Applicable in medical devices where high isolation and low power consumption are essential).
- IO-Link and Multiprotocol Transceivers: Ideal for IO-Link and various multiprotocol transceiver applications).
- Signal Integrity and Protection: Used in applications requiring high signal integrity and protection against common-mode transients).
Q & A
- What is the ADUM1442ARQZ?
The ADUM1442ARQZ is a quad-channel digital isolator produced by Analog Devices Inc., combining CMOS and monolithic air core transformer technologies.
- What is the typical data rate of the ADUM1442ARQZ?
The ADUM1442ARQZ supports data rates up to 2 Mbps (NRZ).
- What is the quiescent current per channel when refresh is enabled?
The quiescent current per channel is typically 5.6 µA when refresh is enabled.
- What is the operating temperature range of the ADUM1442ARQZ?
The operating temperature range is from -40°C to 125°C.
- What package type is the ADUM1442ARQZ available in?
The ADUM1442ARQZ is available in a 16-lead QSOP package.
- Does the ADUM1442ARQZ support bidirectional communication?
Yes, the ADUM1442ARQZ supports bidirectional communication.
- What is the common-mode transient immunity of the ADUM1442ARQZ?
The common-mode transient immunity is greater than 25 kV/µs.
- Is the ADUM1442ARQZ RoHS compliant?
Yes, the ADUM1442ARQZ is RoHS compliant.
- What are some of the regulatory approvals for the ADUM1442ARQZ?
The ADUM1442ARQZ is compliant with UL 1577, CSA, and VDE certifications.
- What are some typical applications of the ADUM1442ARQZ?
Typical applications include industrial I/O, automotive interfaces, medical devices, IO-Link, and multiprotocol transceivers.
