Overview
The ADUM2201ARIZ-RL is a 2-channel digital isolator produced by Analog Devices Inc., utilizing the company's proprietary iCoupler technology. This component combines high-speed CMOS and monolithic air core transformer technology to provide superior isolation performance compared to traditional optocouplers. The ADUM2201ARIZ-RL is designed to eliminate the uncertainties and nonlinearities associated with optocouplers, such as uncertain current transfer ratios and temperature and lifetime effects. It features a patented refresh mechanism to ensure DC correctness during power-up/power-down conditions and in the absence of input logic transitions.
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 |
Key Features
- High-Speed Isolation: The ADUM2201ARIZ-RL offers high-speed data transfer rates up to 1 Mbps, making it suitable for various high-speed applications.
- iCoupler Technology: Utilizes Analog Devices' iCoupler technology, which combines CMOS and monolithic air core transformer technology to provide reliable and efficient isolation.
- Low Power Consumption: Features low quiescent and dynamic supply currents, reducing overall power consumption and heat generation.
- High Common-Mode Transient Immunity: Offers high common-mode transient immunity of up to 35 kV/µs, ensuring robust performance in noisy environments.
- Refresh Mechanism: Includes a patented refresh feature to ensure DC correctness during power-up/power-down conditions and in the absence of input logic transitions.
Applications
- Automotive Systems: Suitable for use in hybrid electric vehicles, battery monitors, and motor drives due to its robust isolation and high-speed capabilities.
- Industrial I/O: Can be used in various industrial applications requiring reliable and high-speed data isolation.
- RS-232/RS-422/RS-485 Interfaces: Ideal for isolating RS-232, RS-422, and RS-485 interfaces to prevent noise and ensure data integrity.
- General Digital Isolation: Applicable in any system requiring digital signal isolation to prevent ground loops, reduce noise, and enhance system reliability.
Q & A
- What is the ADUM2201ARIZ-RL used for?
The ADUM2201ARIZ-RL is a 2-channel digital isolator used to isolate digital signals in various applications, including automotive systems, industrial I/O, and RS-232/RS-422/RS-485 interfaces.
- What technology does the ADUM2201ARIZ-RL use?
The ADUM2201ARIZ-RL uses Analog Devices' iCoupler technology, which combines high-speed CMOS and monolithic air core transformer technology.
- What are the key benefits of using iCoupler technology?
iCoupler technology eliminates the uncertainties and nonlinearities associated with optocouplers, such as uncertain current transfer ratios and temperature and lifetime effects. It also provides high common-mode transient immunity and low power consumption.
- What is the maximum data transfer rate of the ADUM2201ARIZ-RL?
The ADUM2201ARIZ-RL supports data transfer rates up to 1 Mbps.
- What is the common-mode transient immunity of the ADUM2201ARIZ-RL?
The ADUM2201ARIZ-RL has a common-mode transient immunity of up to 35 kV/µs.
- Does the ADUM2201ARIZ-RL have any special features for power-up/power-down conditions?
Yes, it includes a patented refresh feature to ensure DC correctness during power-up/power-down conditions and in the absence of input logic transitions.
- What are some typical applications of the ADUM2201ARIZ-RL?
Typical applications include automotive systems, industrial I/O, and RS-232/RS-422/RS-485 interfaces.
- How does the ADUM2201ARIZ-RL reduce power consumption?
The ADUM2201ARIZ-RL features low quiescent and dynamic supply currents, reducing overall power consumption and heat generation.
- What is the packaging option for the ADUM2201ARIZ-RL?
The ADUM2201ARIZ-RL is available in a 16-pin SOIC package with a tape and reel option.
- Where can I find detailed specifications for the ADUM2201ARIZ-RL?
Detailed specifications can be found in the datasheet available on Analog Devices' official website and other electronic component distributors like Mouser and Digi-Key.
