Overview
The ADuM1400ARW-RL, produced by Analog Devices Inc., is a quad-channel digital isolator based on Analog Devices' iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technology to provide superior performance characteristics compared to traditional optocoupler devices. The ADuM1400ARW-RL eliminates the design difficulties associated with optocouplers, such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects. It offers stable performance and low power consumption, making it an efficient solution for various isolation needs.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Minimum Pulse Width | PW | 100 | - | - | ns | CL = 15 pF, CMOS signal levels |
| Maximum Data Rate | - | - | 10 | Mbps | CL = 15 pF, CMOS signal levels | |
| Propagation Delay | tPHL, tPLH | 20 | 38 | 50 | ns | CL = 15 pF, CMOS signal levels |
| Pulse Width Distortion | PWD | - | - | 3 | ns | CL = 15 pF, CMOS signal levels |
| Change vs. Temperature | - | - | 5 | ps/°C | CL = 15 pF, CMOS signal levels | |
| Propagation Delay Skew | tPSK | - | - | 22 | ns | CL = 15 pF, CMOS signal levels |
| Input Supply Current per Channel (Quiescent) | IDDI (Q) | 0.50 | 0.53 | - | mA | 5 V/3 V Operation |
| Output Supply Current per Channel (Quiescent) | IDDO (Q) | 0.11 | 0.14 | - | mA | 5 V/3 V Operation |
Key Features
- High-Speed CMOS and Monolithic Air Core Transformer Technology: Provides superior performance and stability compared to optocouplers.
- Low Power Consumption: Consumes one tenth to one sixth of the power of optocouplers at comparable signal data rates.
- Four Independent Isolation Channels: Available in various channel configurations and data rates.
- No External Drivers Required: Simplifies design by eliminating the need for external drivers and discrete components.
- Temperature and Lifetime Stability: Eliminates concerns related to uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects.
Applications
- Industrial I/O: Suitable for industrial control systems and interfaces.
- Automotive Interfaces: Used in automotive systems such as CAN, audio, and Ethernet.
- RS-232 / RS-422 / RS-485 / RS-562: Applicable in serial communication systems.
- Local Interconnect Transceivers (LIN TxRx): Used in local interconnect networks.
- Signal Integrity and Protection: Enhances signal integrity and provides protection in various signal transmission applications.
Q & A
- What is the ADuM1400ARW-RL based on?
The ADuM1400ARW-RL is based on Analog Devices' iCoupler® technology, which combines high-speed CMOS and monolithic air core transformer technology.
- How many isolation channels does the ADuM1400ARW-RL provide?
The ADuM1400ARW-RL provides four independent isolation channels.
- What are the maximum data rates for the ADuM1400ARW-RL?
The maximum data rate for the ADuM1400ARW-RL is 10 Mbps.
- What is the propagation delay of the ADuM1400ARW-RL?
The propagation delay (tPHL, tPLH) is between 20 ns and 50 ns.
- How does the ADuM1400ARW-RL compare to optocouplers in terms of power consumption?
The ADuM1400ARW-RL consumes one tenth to one sixth of the power of optocouplers at comparable signal data rates.
- What are some common applications of the ADuM1400ARW-RL?
Common applications include industrial I/O, automotive interfaces, RS-232 / RS-422 / RS-485 / RS-562, and local interconnect transceivers.
- Does the ADuM1400ARW-RL require external drivers?
No, the ADuM1400ARW-RL does not require external drivers, simplifying the design process.
- How stable is the ADuM1400ARW-RL in terms of temperature and lifetime effects?
The ADuM1400ARW-RL eliminates concerns related to uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects.
- What is the input supply current per channel for the ADuM1400ARW-RL?
The input supply current per channel (IDDI (Q)) is between 0.50 mA and 0.53 mA for 5 V/3 V operation.
- What is the output supply current per channel for the ADuM1400ARW-RL?
The output supply current per channel (IDDO (Q)) is between 0.11 mA and 0.14 mA for 5 V/3 V operation.
