Overview
The ADUM121N1WBRZ-RL7 is a dual-channel digital isolator produced by Analog Devices Inc. This component utilizes iCoupler® technology, combining high-speed CMOS and monolithic air core transformer technology to provide superior performance characteristics compared to optocoupler devices and other integrated couplers. It is designed for high common-mode transient immunity and robustness to radiated and conducted noise, making it suitable for a variety of applications requiring reliable signal isolation.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Channels | 2 | - | Dual-channel isolator |
| Package Type | SOIC-8 | - | 8-lead SOIC-N package |
| Operating Temperature Range | -40°C to +125°C | °C | Qualified for automotive applications |
| Supply Voltage Range | 1.8V to 5V | V | Level translation capability |
| Withstand Voltage Rating | 3 kV rms | V rms | UL recognition: 3000 V rms for 1 minute per UL 1577 |
| Propagation Delay | 13 ns maximum | ns | At 5 V operation |
| Data Rate | 150 Mbps minimum | Mbps | - |
| Common-Mode Transient Immunity | 100 kV/µs typical | kV/µs | - |
| Fail-Safe Output State | High | - | Output state when input power supply is not applied or inputs are disabled |
| Regulatory Approvals | UL, CSA, VDE, CQC | - | Compliant with various international standards |
Key Features
- High-Speed Operation: Maximum propagation delay of 13 ns with a pulse width distortion of less than 3 ns at 5 V operation.
- High Common-Mode Transient Immunity: 100 kV/µs typical, ensuring robustness to radiated and conducted noise.
- Level Translation: Operates with supply voltages ranging from 1.8 V to 5 V, providing compatibility with lower voltage systems.
- Fail-Safe Output State: Outputs transition to a predetermined state when the input power supply is not applied or the inputs are disabled.
- Low Dynamic Power Consumption: Efficient power usage with dynamic supply current specified at 0.01 mA/Mbps for inputs switching at 50% duty cycle.
- Pin Compatibility: Pin-compatible with ADuM1281 and ADuM1201, among others.
- Regulatory Compliance: Approved by UL, CSA, VDE, and CQC, ensuring compliance with various international standards.
Applications
- General-Purpose Multichannel Isolation: Suitable for applications requiring multiple isolated channels.
- Industrial Field Bus Isolation: Used in industrial settings to isolate field bus signals.
- Automotive Applications: Qualified for use in automotive systems due to its operating temperature range and regulatory approvals.
- High-Noise Environments: Ideal for environments with high levels of radiated and conducted noise due to its high common-mode transient immunity.
Q & A
- What is the ADUM121N1WBRZ-RL7 used for?
The ADUM121N1WBRZ-RL7 is a dual-channel digital isolator used for isolating digital signals in various applications, including general-purpose multichannel isolation and industrial field bus isolation.
- What is the operating temperature range of the ADUM121N1WBRZ-RL7?
The operating temperature range is -40°C to +125°C, making it suitable for automotive and other high-temperature applications.
- What is the withstand voltage rating of the ADUM121N1WBRZ-RL7?
The withstand voltage rating is 3 kV rms, with UL recognition for 3000 V rms for 1 minute per UL 1577.
- What is the maximum propagation delay of the ADUM121N1WBRZ-RL7?
The maximum propagation delay is 13 ns at 5 V operation.
- Is the ADUM121N1WBRZ-RL7 RoHS compliant?
Yes, the ADUM121N1WBRZ-RL7 is RoHS compliant.
- What are the regulatory approvals for the ADUM121N1WBRZ-RL7?
The device is approved by UL, CSA, VDE, and CQC, ensuring compliance with various international standards.
- What is the data rate capability of the ADUM121N1WBRZ-RL7?
The minimum data rate is 150 Mbps.
- What is the common-mode transient immunity of the ADUM121N1WBRZ-RL7?
The common-mode transient immunity is 100 kV/µs typical.
- Is the ADUM121N1WBRZ-RL7 pin-compatible with other devices?
Yes, it is pin-compatible with ADuM1281 and ADuM1201, among others.
- What is the fail-safe output state of the ADUM121N1WBRZ-RL7?
The fail-safe output state is high when the input power supply is not applied or the inputs are disabled.
