Overview
The ADUM225N0BRIZ is a dual-channel digital isolator produced by Analog Devices Inc. This component utilizes Analog Devices' iCoupler® technology, which is based on magnetic coupling, offering superior performance and robustness compared to traditional optocoupler devices. The ADUM225N0BRIZ is designed to provide high common-mode transient immunity and low propagation delay, making it suitable for a wide range of applications requiring reliable and high-speed data transfer across isolation barriers.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Withstand Voltage | - | - | 5.0 kV rms | - | - | |
| Supply Voltage | VDDx | 1.8 V | - | 5 V | - | |
| Propagation Delay | tP | - | 13 ns (5 V), 15 ns (1.8 V) | - | - | |
| Data Rate | - | - | 150 Mbps | - | - | |
| Common-Mode Transient Immunity | |CMH|, |CML| | 75 kV/µs | 100 kV/µs | - | - | |
| Output Rise/Fall Time | tR/tF | - | 2.5 ns | - | 10% to 90% | |
| Undervoltage Lockout Thresholds | VDDxUV+, VDDxUV- | 1.6 V, 1.5 V | - | - | - |
Key Features
- High common-mode transient immunity: up to 100 kV/µs, ensuring robustness to radiated and conducted noise.
- Low propagation delay: 13 ns maximum for 5 V operation and 15 ns maximum for 1.8 V operation.
- High data rate: up to 150 Mbps.
- Safety and regulatory approvals: UL recognition for 5000 V rms for 1 minute per UL 1577 and CSA certification per IEC 62368-1.
- Fail-safe options: outputs transition to a predetermined state when the input power supply is not applied or the inputs are disabled.
- Voltage translation functionality: operates with supply voltages ranging from 1.8 V to 5 V on either side of the isolation barrier.
Applications
- Industrial control systems: for isolating control signals and ensuring reliable communication in noisy environments.
- Medical devices: where high isolation and low noise are critical for patient safety and device reliability.
- Automotive systems: for isolating signals in high-voltage and noisy environments.
- Power supplies: to ensure safe and reliable isolation between different voltage domains.
- Communication systems: for high-speed data transfer across isolation barriers.
Q & A
- What is the maximum withstand voltage of the ADUM225N0BRIZ?
The ADUM225N0BRIZ has a maximum withstand voltage of 5.0 kV rms.
- What are the operating supply voltage ranges for the ADUM225N0BRIZ?
The device operates with supply voltages ranging from 1.8 V to 5 V on either side of the isolation barrier.
- What is the maximum propagation delay of the ADUM225N0BRIZ?
The maximum propagation delay is 13 ns for 5 V operation and 15 ns for 1.8 V operation.
- What is the common-mode transient immunity of the ADUM225N0BRIZ?
The device has a common-mode transient immunity of up to 100 kV/µs.
- What safety and regulatory approvals does the ADUM225N0BRIZ have?
The device has UL recognition for 5000 V rms for 1 minute per UL 1577 and CSA certification per IEC 62368-1.
- What is the maximum data rate supported by the ADUM225N0BRIZ?
The device supports a maximum data rate of 150 Mbps.
- Does the ADUM225N0BRIZ support voltage translation?
Yes, the device supports voltage translation functionality across the isolation barrier with supply voltages ranging from 1.8 V to 5 V.
- What are the fail-safe options available for the ADUM225N0BRIZ?
The device has fail-safe options where the outputs transition to a predetermined state when the input power supply is not applied or the inputs are disabled.
- What is the output rise/fall time of the ADUM225N0BRIZ?
The output rise/fall time is 2.5 ns from 10% to 90%).
- What are some typical applications of the ADUM225N0BRIZ?
Typical applications include industrial control systems, medical devices, automotive systems, power supplies, and communication systems).
