Overview
The ADUM4154BRIZ-RL is a high-speed digital isolator from Analog Devices, part of their iCoupler® and SPIsolator™ product families. This device is specifically designed for isolating high-speed serial data interfaces, such as SPI, and supports up to four slave devices. It offers robust digital isolation with high common-mode transient immunity and low propagation delay, making it suitable for a variety of applications requiring reliable and high-speed data transmission across isolation barriers.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Isolation Voltage | 5000 | Vrms | |||
| Common-Mode Transient Immunity | 25 | kV/μs | VINPUT = VDDx, VCM = 1000 V, transient magnitude = 800 V | ||
| Data Rate (Fast) | 2 | 34 | Mbps | Within PWD limit | |
| Data Rate (Slow) | 250 | kbps | Within PWD limit | ||
| Propagation Delay (tPHL, tPLH) | 25 | 34 | ns | 50% input to 50% output | |
| Pulse Width Distortion (PWD) | 3 | ns | |tPLH − tPHL| | ||
| Output Rise/Fall Time (tR/tF) | 2.5 | ns | 10% to 90% | ||
| Operating Voltage Range | 3 | 5.5 | V | ||
| Operating Temperature Range | -40 | 125 | °C | ||
| Package Type | SOIC-20 |
Key Features
- Supports up to 17 MHz SPI clock speed
- Four high-speed, low propagation delay SPI signal isolation channels
- Supports up to four slave devices with a slave select multiplexing system
- High common-mode transient immunity of >25 kV/μs
- Compact 20-lead SOIC_IC package with 8.3 mm creepage
- High temperature operation up to 125°C
- Low power consumption and high reliability
- Meets safety standards such as UL 1577, CSA Component Acceptance Notice #5A, and VDE certification
- RoHS-compliant and lead-free
Applications
- Industrial automation and control systems
- Medical equipment
- Motor drives and power converters
- Telecommunication and networking equipment
- Consumer electronics with isolation requirements
- Programmable logic controllers (PLCs) and sensor isolation
Q & A
- What is the primary function of the ADUM4154BRIZ-RL?
The ADUM4154BRIZ-RL is a high-speed digital isolator designed to isolate high-speed serial data interfaces, such as SPI, while providing robust digital isolation and low propagation delay.
- What is the maximum SPI clock speed supported by the ADUM4154BRIZ-RL?
The device supports up to 17 MHz SPI clock speed.
- How many slave devices can the ADUM4154BRIZ-RL support?
The ADUM4154BRIZ-RL can support up to four slave devices using its slave select multiplexing system.
- What is the common-mode transient immunity of the ADUM4154BRIZ-RL?
The device has a common-mode transient immunity of >25 kV/μs.
- What is the operating temperature range of the ADUM4154BRIZ-RL?
The operating temperature range is from -40°C to +125°C.
- What safety standards does the ADUM4154BRIZ-RL meet?
The device meets safety standards such as UL 1577, CSA Component Acceptance Notice #5A, and VDE certification.
- Is the ADUM4154BRIZ-RL RoHS-compliant?
Yes, the device is RoHS-compliant and lead-free.
- What is the package type of the ADUM4154BRIZ-RL?
The device is packaged in a 20-lead SOIC_IC package with 8.3 mm creepage.
- What are some typical applications of the ADUM4154BRIZ-RL?
Typical applications include industrial automation, medical equipment, motor drives, telecommunication equipment, and consumer electronics with isolation requirements.
- How does the ADUM4154BRIZ-RL manage power consumption?
The device is designed for low power consumption, contributing to its high reliability and long lifetime.
