Overview
The ADuM1301WTRWZ-RL is a triple-channel digital isolator produced by Analog Devices Inc., utilizing the company's proprietary iCoupler® technology. This component combines high-speed CMOS and monolithic transformer technology to provide superior performance characteristics compared to traditional optocouplers. By eliminating the use of LEDs and photodiodes, the ADuM1301WTRWZ-RL avoids issues such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects associated with optocouplers. This isolator is designed to operate with low power consumption, typically one-tenth to one-sixth of the power used by optocouplers at comparable data rates.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Input Supply Current per Channel, Quiescent | IDDI (Q) | 0.50 | 0.53 | - | mA | - |
| Output Supply Current per Channel, Quiescent | IDDO (Q) | 0.19 | 0.24 | - | mA | - |
| Total Supply Current, Three Channels (DC to 2 Mbps) | IDD1 (Q), IDD2 (Q) | 1.6, 0.7 | 2.5, 1.0 | - | mA | VDD1 = VDD2 = 3.0 V |
| Total Supply Current, Three Channels (10 Mbps) | IDD1 (10), IDD2 (10) | 6.5, 1.9 | 8.1, 2.5 | - | mA | VDD1 = VDD2 = 3.0 V |
| Total Supply Current, Three Channels (90 Mbps) | IDD1 (90), IDD2 (90) | 57, 16 | 77, 18 | - | mA | VDD1 = VDD2 = 3.0 V |
| Maximum Data Rate | - | - | 90 | Mbps | CL = 15 pF, CMOS signal levels | |
| Propagation Delay | tPHL, tPLH | 50 | 65 | 100 | ns | CL = 15 pF, CMOS signal levels |
| Pulse Width Distortion | PWD | - | - | 2 | ns | CL = 15 pF, CMOS signal levels |
| Common-Mode Transient Immunity | - | - | - | >25 | kV/μs | - |
| Operating Temperature Range | - | -40 | - | 125 | °C | - |
| Package Type | - | - | - | 16-Lead SOIC Wide Body | - | - |
Key Features
- High-Speed Operation: Supports data rates up to 90 Mbps (NRZ).
- Low Power Consumption: Consumes significantly less power compared to optocouplers, with supply currents as low as 1.6 mA for three channels at low data rates.
- Precise Timing Characteristics: Offers low pulse width distortion (<2 ns for CRW grade) and tight channel-to-channel matching (<2 ns for CRW grade).
- High Common-Mode Transient Immunity: >25 kV/μs, ensuring robust operation in noisy environments.
- Voltage Translation: Operates with supply voltages ranging from 2.7 V to 5.5 V on either side, enabling voltage translation across the isolation barrier.
- Output Enable Function: Allows for control over output states.
- Automotive Grade Availability: Models like ADuM1301W are qualified for automotive applications with controlled manufacturing to support quality and reliability requirements.
- Regulatory Compliance: Meets various safety and regulatory standards including UL, CSA, VDE, and TÜV approvals).
Applications
- General-Purpose Multichannel Isolation: Suitable for various isolation needs in industrial and commercial systems.
- SPI Interface/Data Converter Isolation: Ideal for isolating SPI interfaces and data converters in mixed-signal designs.
- RS-232/RS-422/RS-485 Transceivers: Used in serial communication systems requiring isolation.
- Industrial Field Bus Isolation: Applicable in industrial field bus systems such as Profibus, DeviceNet, and CAN bus).
- Automotive Systems: Qualified for use in automotive interfaces including CAN, audio, and Ethernet).
Q & A
- What is the ADuM1301WTRWZ-RL used for?
The ADuM1301WTRWZ-RL is a triple-channel digital isolator used for isolating digital signals in various applications, including industrial, automotive, and general-purpose systems.
- What is the maximum data rate supported by the ADuM1301WTRWZ-RL?
The ADuM1301WTRWZ-RL supports data rates up to 90 Mbps (NRZ).
- How does the ADuM1301WTRWZ-RL compare to optocouplers in terms of power consumption?
The ADuM1301WTRWZ-RL consumes significantly less power than optocouplers, typically one-tenth to one-sixth of the power at comparable data rates).
- What is the common-mode transient immunity of the ADuM1301WTRWZ-RL?
The ADuM1301WTRWZ-RL has a common-mode transient immunity of >25 kV/μs).
- Is the ADuM1301WTRWZ-RL suitable for automotive applications?
Yes, the ADuM1301W model is qualified for automotive applications with controlled manufacturing to support quality and reliability requirements).
- What regulatory approvals does the ADuM1301WTRWZ-RL have?
The ADuM1301WTRWZ-RL meets various safety and regulatory standards including UL, CSA, VDE, and TÜV approvals).
- What is the operating temperature range of the ADuM1301WTRWZ-RL?
The operating temperature range is from -40°C to +125°C).
- What package type does the ADuM1301WTRWZ-RL come in?
The ADuM1301WTRWZ-RL comes in a 16-Lead SOIC wide body package).
- Does the ADuM1301WTRWZ-RL support voltage translation?
Yes, it operates with supply voltages ranging from 2.7 V to 5.5 V on either side, enabling voltage translation across the isolation barrier).
- What is the propagation delay of the ADuM1301WTRWZ-RL?
The propagation delay is between 50 ns and 100 ns).
