Overview
The ADUM2211SRWZ is a 2-channel digital isolator from Analog Devices Inc., utilizing the advanced iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technology, offering superior performance compared to traditional optocoupler devices. By eliminating the use of LEDs and photodiodes, the ADUM2211SRWZ simplifies design and enhances reliability in various electronic systems.
Key Specifications
| Parameter | Symbol | Unit | Test Conditions/Comments | Min | Typ | Max |
|---|---|---|---|---|---|---|
| Pulse Width | PW | ns | Within PWD limit | 1000 | - | - |
| Data Rate | - | Mbps | Within PWD limit | - | 1 / 10 | - |
| Propagation Delay | tPHL, tPLH | ns | 50% input to 50% output | 20 / 20 | 50 / 150 | - |
| Pulse Width Distortion | PWD | ns | |tPLH − tPHL| | 40 | - | 3 |
| Propagation Delay Skew | tPSK | ns | Between any two units | 100 | - | 15 |
| Supply Current (No Load) | IDD1 / IDD2 | mA | - | 1.1 / 1.3 | 1.5 / 1.8 | 2.6 / 3.1 |
| Quiescent Input Supply Current | IDDI (Q) | mA | - | 0.3 | 0.5 | - |
| Output Rise/Fall Time | tR/tF | ns | 10% to 90% | - | 10 / 3 | - |
| Common-Mode Transient Immunity | |CM| | kV/µs | VIx = VDDX, VCM = 1000 V, transient magnitude = 800 V | 25 | - | 35 |
Key Features
- High-Speed CMOS and Monolithic Air Core Transformer Technology: Provides superior performance and reliability compared to optocoupler devices.
- Dual-Channel Isolation: Supports two independent isolation channels.
- Low Propagation Delay and Skew: Ensures high-speed data transmission with minimal delay and skew between channels.
- High Common-Mode Transient Immunity: Capable of withstanding high common-mode voltage slew rates.
- Low Power Consumption: Quiescent and dynamic supply currents are optimized for energy efficiency.
- Compact Package: Available in small form factors, making it suitable for space-constrained applications.
Applications
- Industrial I/O and Control Systems: Ideal for isolating signals in industrial control systems, ensuring safety and reliability.
- Automotive Systems: Used in automotive interfaces such as CAN, audio, and Ethernet due to its high reliability and performance.
- Medical Devices: Suitable for medical applications requiring high isolation and low noise.
- RS-232/RS-422/RS-485 Transceivers: Provides isolation for serial communication interfaces.
- Hybrid Electric Vehicles and Battery Monitors: Ensures safe and reliable signal isolation in high-voltage systems.
Q & A
- What is the ADUM2211SRWZ used for?
The ADUM2211SRWZ is a 2-channel digital isolator used to isolate signals in various electronic systems, ensuring safety and reliability.
- What technology does the ADUM2211SRWZ use?
The ADUM2211SRWZ uses high-speed CMOS and monolithic air core transformer technology.
- What are the key advantages of the ADUM2211SRWZ over optocouplers?
The ADUM2211SRWZ offers superior performance, lower power consumption, and avoids the design difficulties associated with LEDs and photodiodes found in optocouplers.
- What is the maximum data rate supported by the ADUM2211SRWZ?
The ADUM2211SRWZ supports data rates up to 10 Mbps.
- What is the propagation delay of the ADUM2211SRWZ?
The propagation delay is typically 50 ns for the S Grade and 20 ns for the T Grade.
- How does the ADUM2211SRWZ handle common-mode transient immunity?
The ADUM2211SRWZ can sustain common-mode voltage slew rates up to 35 kV/µs.
- What are some common applications of the ADUM2211SRWZ?
Common applications include industrial I/O, automotive systems, medical devices, and RS-232/RS-422/RS-485 transceivers.
- What is the typical supply current for the ADUM2211SRWZ?
The typical supply current is around 1.5 mA for IDD1 and 1.8 mA for IDD2.
- How does the ADUM2211SRWZ contribute to energy efficiency?
The ADUM2211SRWZ has low quiescent and dynamic supply currents, contributing to overall energy efficiency.
- What package options are available for the ADUM2211SRWZ?
The ADUM2211SRWZ is available in compact packages suitable for space-constrained applications.
