Overview
The ADuM2201BRIZ-RL, produced by Analog Devices Inc., is a 2-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 compared to traditional optocoupler devices. It eliminates the design difficulties associated with optocouplers, such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects. The ADuM2201 is particularly suited for applications requiring high isolation voltage and enhanced system-level ESD performance.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Isolation Voltage | VISO | - | - | 5000 | Vrms | - |
| Logic High Input Threshold | VIH | 0.7 VDDx | - | - | V | - |
| Logic Low Input Threshold | VIL | 0.3 VDDx | - | - | V | - |
| Logic High Output Voltage | VOH | VDDx - 0.1 | VDDx - 0.5 | VDDx - 0.2 | V | IOx = -20 µA, VIx = VIxH |
| Logic Low Output Voltage | 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 |
| Supply Current per Channel (Quiescent Input) | IDDI (Q) | 0.3 | 0.5 | - | mA | All inputs at logic low |
| Supply Current per Channel (Quiescent Output) | IDDO (Q) | 0.5 | 0.6 | - | mA | All inputs at logic low |
| 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 kV/µs (A Grade), 35 kV/µs (B Grade) | - | kV/µs | VIx = VDDx, VCM = 1000 V, transient magnitude = 800 V |
Key Features
- High Isolation Voltage: Up to 5000 Vrms, ensuring robust isolation between channels.
- iCoupler Technology: Combines high-speed CMOS and monolithic air core transformer technology, eliminating the need for LEDs and photodiodes and their associated design difficulties.
- Enhanced ESD Performance: Qualified for system-level ESD performance per IEC 61000-4-x standards.
- Refresh Feature: Ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
- Low Power Consumption: Quiescent supply currents as low as 0.3 mA for input and 0.5 mA for output channels).
- High Speed Operation: Output rise/fall times as low as 2.5 ns for B Grade and 10 ns for A Grade).
Applications
- Automotive Systems: Qualified for automotive applications, including hybrid electric vehicles, battery monitors, and motor drives).
- Industrial I/O: Suitable for various industrial I/O applications requiring high isolation and ESD protection).
- RS-232/RS-422/RS-485 Interfaces: Ideal for isolating communication interfaces in industrial and automotive environments).
- Medical Devices: Can be used in medical devices where high isolation and low power consumption are critical).
Q & A
- What is the isolation voltage of the ADuM2201BRIZ-RL?
The ADuM2201BRIZ-RL has an isolation voltage of up to 5000 Vrms).
- What technology does the ADuM2201BRIZ-RL use for isolation?
The ADuM2201BRIZ-RL uses Analog Devices' iCoupler® technology, which combines high-speed CMOS and monolithic air core transformer technology).
- What are the typical quiescent supply currents for the ADuM2201BRIZ-RL?
The quiescent supply currents are 0.3 mA for the input side and 0.5 mA for the output side).
- What is the output rise/fall time for the ADuM2201BRIZ-RL?
The output rise/fall time is 10 ns for A Grade and 2.5 ns for B Grade).
- Does the ADuM2201BRIZ-RL have any special features for ensuring dc correctness?
Yes, it has a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions).
- What are some common applications for the ADuM2201BRIZ-RL?
Common applications include automotive systems, industrial I/O, RS-232/RS-422/RS-485 interfaces, and medical devices).
- How does the ADuM2201BRIZ-RL perform in terms of ESD protection?
The ADuM2201BRIZ-RL is qualified for system-level ESD performance per IEC 61000-4-x standards).
- What is the common-mode transient immunity of the ADuM2201BRIZ-RL?
The common-mode transient immunity is up to 25 kV/µs for A Grade and 35 kV/µs for B Grade).
- Is the ADuM2201BRIZ-RL suitable for high-speed applications?
Yes, it is suitable for high-speed applications with output rise/fall times as low as 2.5 ns).
- What is the significance of the '-RL' suffix in the part number ADuM2201BRIZ-RL?
The '-RL' suffix designates a 13” (1,000 units) tape and reel option).
