Overview
The ADuM4154BRIZ is a 5 kV, 7-channel SPIsolator digital isolator produced by Analog Devices Inc. This device is optimized for serial peripheral interface (SPI) applications and supports up to four slave devices through its slave select multiplexing system. Based on Analog Devices' iCoupler® chip scale transformer technology, the ADuM4154BRIZ offers low propagation delay and jitter, enabling SPI clock rates of up to 17 MHz. It is designed for high reliability and safety, with certifications from various regulatory bodies such as UL, CSA, and VDE.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Data Rate (Fast) | DRFAST | 2 | 34 | Mbps | Within PWD limit | |
| Propagation Delay | tPHL, tPLH | 34 | 50 | ns | 50% input to 50% output | |
| Pulse Width Distortion | PWD | 3 | 3 | ns | |tPLH − tPHL| | |
| Setup Time | MSSSETUP | 1.5 | 10 | ns | ||
| Supply Current per High Speed Channel (Dynamic Input) | IDDI(D) | 0.078 | mA/Mbps | |||
| Supply Current for All Low Speed Channels (Quiescent Input) | IDD1(Q) | 2.9 | mA | |||
| Common-Mode Transient Immunity | |CM| | 25 | 35 | kV/µs | VINPUT = VDDx, VCM = 1000 V, transient magnitude = 800 V | |
| Isolation Voltage | 5000 V rms for 1 minute |
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 through slave select multiplexing
- 20-lead SOIC package with 8.3 mm creepage
- High temperature operation: up to 125°C
- High common-mode transient immunity: >25 kV/µs
- Safety and regulatory approvals: UL, CSA, VDE certifications
Applications
- Industrial programmable logic controllers (PLCs)
- Sensor isolation
Q & A
- What is the maximum SPI clock speed supported by the ADuM4154BRIZ?
The ADuM4154BRIZ supports up to 17 MHz SPI clock speed.
- How many slave devices can the ADuM4154BRIZ support?
The ADuM4154BRIZ can support up to four slave devices through its slave select multiplexing system.
- What is the isolation voltage rating of the ADuM4154BRIZ?
The ADuM4154BRIZ has an isolation voltage rating of 5000 V rms for 1 minute.
- What are the key regulatory certifications for the ADuM4154BRIZ?
The ADuM4154BRIZ has certifications from UL, CSA, and VDE.
- What is the maximum operating temperature of the ADuM4154BRIZ?
The ADuM4154BRIZ can operate at temperatures up to 125°C.
- What is the common-mode transient immunity of the ADuM4154BRIZ?
The ADuM4154BRIZ has a common-mode transient immunity of >25 kV/µs.
- What package type is the ADuM4154BRIZ available in?
The ADuM4154BRIZ is available in a 20-lead SOIC package with 8.3 mm creepage.
- What are the typical applications for the ADuM4154BRIZ?
The ADuM4154BRIZ is typically used in industrial programmable logic controllers (PLCs) and sensor isolation applications.
- What technology is used in the ADuM4154BRIZ for isolation?
The ADuM4154BRIZ uses Analog Devices' iCoupler® chip scale transformer technology for isolation.
- What is the pulse width distortion (PWD) of the ADuM4154BRIZ?
The pulse width distortion (PWD) of the ADuM4154BRIZ is 3 ns.
