Overview
The ADUM3201ARZ-RL7 is a dual-channel digital isolator produced by Analog Devices Inc. It is based on the iCoupler® technology, which combines high-speed CMOS and monolithic transformer technology to provide superior performance characteristics compared to traditional optocoupler devices. This isolator eliminates the design difficulties associated with optocouplers, such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects. The ADUM3201ARZ-RL7 operates with 3.3 V and 5 V supply voltages, making it versatile for various applications requiring high data rate and reliable isolation.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Data Rate | - | 10 | - | 25 | Mbps | Within PWD limit |
| Propagation Delay | tPHL, tPLH | 15 | - | 150 | ns | 50% input to 50% output |
| Pulse Width Distortion | PWD | 3 | - | 4 | ns | |tPLH − tPHL| |
| Supply Current per Channel (No Load) | IDD1 | 1.1 | 1.5 | 2.6 | mA | - |
| Supply Current per Channel (No Load) | IDD2 | 1.3 | 1.8 | 3.1 | mA | - |
| Logic High Input Threshold | VIH | 0.7 VDDx | - | - | V | - |
| Logic Low Input Threshold | VIL | 0.3 VDDx | - | - | V | - |
| Logic High Output Voltages | VOH | VDDx − 0.1 | - | - | V | IOx = −20 µA, VIx = VIxH |
| Logic Low Output Voltages | VOL | 0.0 | - | 0.1 | V | IOx = 20 µA, VIx = VIxL |
Key Features
- Bidirectional communication with 3.3 V/5 V level translation
- High data rate: dc to 25 Mbps (NRZ)
- Precise timing characteristics with 3 ns maximum pulse width distortion and 3 ns maximum channel-to-channel matching
- High common-mode transient immunity: >25 kV/μs
- Safety and regulatory approvals: UL recognition, CSA Component Acceptance Notice, VDE Certificate of Conformity
- Qualified for automotive applications
- Low power consumption: one-tenth to one-sixth the power of optocouplers at comparable signal data rates
- No need for external drivers or discrete components
Applications
- Size-critical multichannel isolation
- SPI interface/data converter isolation
- RS-232/RS-422/RS-485 transceiver isolation
- Digital field bus isolation
- Hybrid electric vehicles and battery monitoring systems
Q & A
- What is the ADUM3201ARZ-RL7 used for?
The ADUM3201ARZ-RL7 is a dual-channel digital isolator used for isolating digital signals in various applications, including size-critical multichannel isolation, SPI interface/data converter isolation, and more.
- What are the key features of the ADUM3201ARZ-RL7?
Key features include bidirectional communication, high data rate up to 25 Mbps, precise timing characteristics, high common-mode transient immunity, and low power consumption.
- What are the typical operating voltages for the ADUM3201ARZ-RL7?
The device operates with 3.3 V and 5 V supply voltages.
- What is the maximum data rate supported by the ADUM3201ARZ-RL7?
The maximum data rate supported is 25 Mbps.
- Does the ADUM3201ARZ-RL7 require external drivers or discrete components?
No, it does not require external drivers or discrete components.
- What are the safety and regulatory approvals for the ADUM3201ARZ-RL7?
The device has UL recognition, CSA Component Acceptance Notice, and VDE Certificate of Conformity.
- Is the ADUM3201ARZ-RL7 suitable for automotive applications?
Yes, it is qualified for automotive applications.
- What is the package type of the ADUM3201ARZ-RL7?
The package type is SOIC-8.
- How does the ADUM3201ARZ-RL7 compare to optocouplers in terms of power consumption?
The ADUM3201ARZ-RL7 consumes one-tenth to one-sixth the power of optocouplers at comparable signal data rates.
- What is the common-mode transient immunity of the ADUM3201ARZ-RL7?
The common-mode transient immunity is greater than 25 kV/μs.
