Overview
The ADUM2201WBRWZ is a 2-channel digital isolator produced by Analog Devices Inc., utilizing their proprietary iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technology to provide superior isolation performance compared to traditional optocoupler devices. By eliminating the use of LEDs and photodiodes, the ADUM2201WBRWZ avoids issues such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects commonly associated with optocouplers.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| 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 | VDDx - 0.5 | VDDx - 0.2 | V | IOx = -20 µA, VIx = VIxH |
| Logic Low Output Voltages | VOL | 0.0 | 0.1 | 0.2 | V | IOx = 20 µA, VIx = VIxL |
| Input Current per Channel | II | -10 | 0.01 | 10 | µA | 0 V ≤ VIx ≤ VDDx |
| Quiescent Input Supply Current | IDDI (Q) | 0.3 | 0.5 | mA | All inputs at logic low | |
| Quiescent Output Supply Current | IDDO (Q) | 0.5 | 0.6 | mA | All inputs at logic low | |
| Dynamic Input Supply Current | IDDI (D) | 0.10 | mA/Mbps | |||
| Dynamic Output Supply Current | IDDO (D) | 0.05 | mA/Mbps | |||
| Output Rise/Fall Time | tR/tF | 10 ns (A Grade) | 2.5 ns (B Grade) | ns | 10% to 90% | |
| Common-Mode Transient Immunity | |CM| | 25 | 35 | kV/µs | VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V | |
| Refresh Rate | fr | 1.1 | Mbps | |||
| Isolation Voltage | 5000 | V rms |
Key Features
- High-Speed CMOS and Monolithic Air Core Transformer Technology: Provides superior isolation performance and eliminates the use of LEDs and photodiodes, thus avoiding issues like uncertain current transfer ratios and nonlinear transfer functions.
- Enhanced System-Level ESD Performance: Meets IEC 61000-4-x standards for ESD, burst, and surge testing, ensuring robust protection against electrical disturbances.
- Patented Refresh Feature: Ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
- High Isolation Voltage: Offers 5000 V rms isolation voltage, making it suitable for high-voltage applications.
- Low Power Consumption: Features quiescent and dynamic supply currents that minimize power usage.
Applications
- Automotive Systems: Qualified for automotive applications, including CAN, audio, and Ethernet interfaces.
- Industrial I/O and Control Systems: Suitable for industrial I/O, IO-Link, and other control systems requiring high isolation and reliability.
- Hybrid Electric Vehicles and Battery Monitors: Used in hybrid electric vehicles, battery monitors, and motor drives due to its high isolation and ESD performance.
- RS-232/RS-422/RS-485 Transceivers: Ideal for isolating RS-232, RS-422, and RS-485 transceivers in various communication systems.
Q & A
- What is the ADUM2201WBRWZ?
The ADUM2201WBRWZ is a 2-channel digital isolator based on Analog Devices Inc.'s iCoupler® technology, combining high-speed CMOS and monolithic air core transformer technology.
- What are the key advantages of the ADUM2201WBRWZ over traditional optocouplers?
The ADUM2201WBRWZ avoids issues like uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects by not using LEDs and photodiodes.
- What is the isolation voltage of the ADUM2201WBRWZ?
The ADUM2201WBRWZ offers an isolation voltage of 5000 V rms.
- Does the ADUM2201WBRWZ meet any specific ESD standards?
Yes, it meets IEC 61000-4-x standards for ESD, burst, and surge testing.
- What is the refresh rate of the ADUM2201WBRWZ?
The refresh rate is 1.1 Mbps.
- What are some common applications of the ADUM2201WBRWZ?
It is used in automotive systems, industrial I/O and control systems, hybrid electric vehicles, battery monitors, and RS-232/RS-422/RS-485 transceivers.
- How does the ADUM2201WBRWZ ensure dc correctness?
The ADUM2201WBRWZ has a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
- What is the typical quiescent input supply current of the ADUM2201WBRWZ?
The quiescent input supply current is typically 0.5 mA when all inputs are at logic low.
- What is the output rise/fall time of the ADUM2201WBRWZ?
The output rise/fall time is 10 ns for A Grade and 2.5 ns for B Grade.
- How does the ADUM2201WBRWZ handle common-mode transient immunity?
The ADUM2201WBRWZ can sustain a common-mode transient immunity of up to 35 kV/µs.
