Overview
The ADUM7442ARQZ-RL7 is a 4-channel digital isolator produced by Analog Devices Inc., utilizing the company's iCoupler technology. This component is designed to provide high isolation voltage and low power consumption, making it suitable for a variety of applications requiring reliable and efficient signal isolation. The ADUM7442ARQZ-RL7 is housed in a compact 16-lead QSOP package, which helps in saving board space while maintaining robust performance.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Isolation Voltage | VISO | 1000 | Vrms | |||
| Operating Temperature | TJ | -40 | 105 | °C | ||
| Supply Voltage | VDDx | 4.5 | 5 | 5.5 | V | |
| Quiescent Input Supply Current | IDDI(Q) | 0.76 | 0.95 | mA | 0 V ≤ VIx ≤ VDDx | |
| Quiescent Output Supply Current | IDDO(Q) | 0.57 | 0.73 | mA | ||
| Dynamic Input Supply Current | IDDI(D) | 0.26 | mA/Mbps | |||
| Dynamic Output Supply Current | IDDO(D) | 0.05 | mA/Mbps | |||
| Output Rise/Fall Time | tR/tF | 2.0 | ns | 10% to 90% | ||
| Common-Mode Transient Immunity | |CM| | 15 | 25 | kV/µs | VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V | |
| Input Capacitance | CI | 4.0 | pF | |||
| Input-to-Output Capacitance | CI-O | 2 | pF | f = 1 MHz |
Key Features
- High Isolation Voltage: 1000 Vrms isolation rating and 2500 Vrms for 1 minute, with safety and regulatory approvals such as UL 1577 and CSA standards.
- Low Power Operation: Consumes significantly less power compared to other isolators, with 2.25 mA per channel maximum at 0 Mbps to 1 Mbps and 11.5 mA per channel maximum at 25 Mbps for 5V operation.
- Compact Package: Housed in a small 16-lead QSOP package, saving almost 70% of board space.
- Low Pulse Width Distortion: Less than 5 ns for C grade models, ensuring high signal integrity.
- Input Glitch Filter: Protects against extraneous noise disturbances.
- High Data Rates: Supports data rates up to 25 Mbps.
Applications
- Automotive Interfaces: Suitable for CAN, audio, and Ethernet interfaces.
- Industrial I/O: Used in various industrial control and monitoring systems.
- IO-Link: Compatible with IO-Link communication protocols.
- RS-232 / RS-422 / RS-485: Applicable in serial communication systems.
- Signal Line Protection: Provides protection against common-mode transients and noise.
- Medical and Healthcare Devices: Can be used in medical devices requiring high isolation and low power consumption.
Q & A
- What is the isolation voltage rating of the ADUM7442ARQZ-RL7?
The ADUM7442ARQZ-RL7 has a 1000 Vrms isolation voltage rating and can withstand 2500 Vrms for 1 minute. - What is the operating temperature range of the ADUM7442ARQZ-RL7?
The operating temperature range is from -40°C to +105°C. - How much power does the ADUM7442ARQZ-RL7 consume?
The component consumes 2.25 mA per channel maximum at 0 Mbps to 1 Mbps and 11.5 mA per channel maximum at 25 Mbps for 5V operation. - What is the package type of the ADUM7442ARQZ-RL7?
The ADUM7442ARQZ-RL7 is housed in a 16-lead QSOP package. - What are the key safety and regulatory approvals for this component?
The component has safety and regulatory approvals such as UL 1577 and CSA standards. - What is the maximum data rate supported by the ADUM7442ARQZ-RL7?
The component supports data rates up to 25 Mbps. - Does the ADUM7442ARQZ-RL7 have any built-in noise protection features?
Yes, it has an input glitch filter to protect against extraneous noise disturbances. - What are some common applications of the ADUM7442ARQZ-RL7?
It is used in automotive interfaces, industrial I/O, IO-Link, RS-232 / RS-422 / RS-485, and signal line protection among others. - How does the ADUM7442ARQZ-RL7 save board space?
The component frees almost 70% of board space due to its compact QSOP package. - What is the common-mode transient immunity of the ADUM7442ARQZ-RL7?
The common-mode transient immunity is 15 kV/µs to 25 kV/µs.
