Overview
The ADUM1281CRZ is a dual-channel digital isolator produced by Analog Devices Inc. This component utilizes Analog Devices' iCoupler® technology, which combines high-speed CMOS and monolithic air core transformer technology to provide outstanding performance characteristics. It is designed to offer superior performance compared to optocoupler devices and other integrated couplers. The ADUM1281CRZ supports voltage translation across the isolation barrier and is compatible with lower voltage systems, operating within a supply voltage range of 3.135V to 5.5V. It is widely used in various applications requiring high-speed data transfer and isolation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 2 | |
| Maximum Data Rate | 100 | Mbps |
| Maximum Propagation Delay | 24 | ns (at 5V) |
| Output Default State | High | |
| Operating Temperature Range | −40°C to +125°C | |
| Package Style | 8-lead SOIC-N | |
| Operating Voltage Range | 3.135V to 5.5V | |
| Isolation Voltage | 3 kV RMS | |
| Dynamic Power Consumption | Low | |
| Communication | Bidirectional |
Key Features
- High-speed CMOS and monolithic air core transformer technology for superior performance.
- Low dynamic power consumption and bidirectional communication.
- Voltage translation functionality across the isolation barrier.
- Default high output state when power is first applied or not yet applied to the input side.
- Patented refresh feature ensuring dc correctness in the absence of input logic transitions.
- Tight channel-to-channel matching and low pulse width distortion.
- UL recognition: 3000V rms for 1 minute per UL 1577, CSA component acceptance notice 5A, VDE certificate of conformity, and DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12.
Applications
- General-purpose multichannel isolation.
- Data converter isolation.
- Industrial field bus isolation.
- Hybrid electric vehicles.
- Battery monitoring systems.
- Motor drive systems.
Q & A
- What is the ADUM1281CRZ used for?
The ADUM1281CRZ is a dual-channel digital isolator used for high-speed data transfer and isolation in various applications, including general-purpose multichannel isolation, data converter isolation, and industrial field bus isolation.
- What is the maximum data rate of the ADUM1281CRZ?
The maximum data rate of the ADUM1281CRZ is 100 Mbps.
- What is the operating temperature range of the ADUM1281CRZ?
The operating temperature range of the ADUM1281CRZ is −40°C to +125°C.
- What is the isolation voltage of the ADUM1281CRZ?
The isolation voltage of the ADUM1281CRZ is 3 kV RMS.
- What package style does the ADUM1281CRZ come in?
The ADUM1281CRZ comes in an 8-lead SOIC-N package.
- Is the ADUM1281CRZ RoHS compliant?
Yes, the ADUM1281CRZ is RoHS compliant.
- What are the regulatory approvals for the ADUM1281CRZ?
The ADUM1281CRZ has UL recognition: 3000V rms for 1 minute per UL 1577, CSA component acceptance notice 5A, VDE certificate of conformity, and DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12.
- Does the ADUM1281CRZ support voltage translation?
Yes, the ADUM1281CRZ supports voltage translation across the isolation barrier and is compatible with lower voltage systems.
- What is the default output state of the ADUM1281CRZ when power is first applied?
The default output state of the ADUM1281CRZ is high when power is first applied or not yet applied to the input side.
- Does the ADUM1281CRZ have any patented features?
Yes, the ADUM1281CRZ has a patented refresh feature that ensures dc correctness in the absence of input logic transitions.
