Overview
The ADUM1441ARSZ-RL7 is a micro-power, quad-channel digital isolator produced by Analog Devices Inc. This component combines high-speed, complementary metal oxide semiconductor (CMOS) and monolithic air core transformer technologies, providing outstanding performance characteristics superior to optocoupler devices. It is part of the ADuM1440/ADuM1441/ADuM1442/ADuM1445/ADuM1446/ADuM1447 family, known for their low power consumption and high isolation voltages.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Voltage - Isolation | 3750 | Vrms | |||
| Number of Channels | 4 | ||||
| Channel Type | Unidirectional | ||||
| Voltage - Supply | 2.25 | 3.6 | V | ||
| Common Mode Transient Immunity (Min) | 25 | kV/µs | VIx = VDDx1, VCM = 1000 V, transient magnitude = 800 V | ||
| Data Rate | 2 | Mbps | |||
| Propagation Delay tpLH / tpHL (Max) | 180 | ns | |||
| Pulse Width Distortion (Max) | 8 | ns | |||
| Rise / Fall Time (Typ) | 2 | ns | 10% to 90% | ||
| Package | 20-SSOP (0.209", 5.30mm Width) |
Key Features
- High-speed CMOS and monolithic air core transformer technologies for superior performance.
- Low power consumption: Quiescent current as low as 0.05 µA per channel when internal refresh is disabled.
- High isolation voltage: 3750 Vrms.
- Low pulse width distortion: <8 ns.
- Input glitch filter to protect against extraneous noise disturbances.
- Common-mode transient immunity of 25 kV/µs.
- Compact 20-lead SSOP package, saving nearly 70% of board space compared to wide body SOIC packages.
- Operates with supplies as low as 2.25 V.
Applications
- Industrial I/O and control systems.
- Automotive interfaces (CAN, Audio, Ethernet).
- Broadband switches and controllers.
- IO-Link and other industrial communication protocols.
- Level translators and signal line protection.
- RS-232 / RS-422 / RS-485 / RS-562 serial bus applications.
- USB and other high-speed digital interfaces.
Q & A
- What is the ADUM1441ARSZ-RL7 used for?
The ADUM1441ARSZ-RL7 is a quad-channel digital isolator used to provide electrical isolation between different parts of a system while maintaining high-speed data transfer.
- What is the isolation voltage of the ADUM1441ARSZ-RL7?
The isolation voltage is 3750 Vrms.
- What is the typical supply voltage range for the ADUM1441ARSZ-RL7?
The supply voltage range is from 2.25 V to 3.6 V.
- What is the data rate of the ADUM1441ARSZ-RL7?
The data rate is up to 2 Mbps.
- What is the propagation delay of the ADUM1441ARSZ-RL7?
The propagation delay is up to 180 ns.
- What is the pulse width distortion of the ADUM1441ARSZ-RL7?
The pulse width distortion is less than 8 ns.
- What package type is the ADUM1441ARSZ-RL7 available in?
The component is available in a 20-lead SSOP package.
- What are some common applications of the ADUM1441ARSZ-RL7?
Common applications include industrial I/O, automotive interfaces, broadband switches, and high-speed digital interfaces.
- Does the ADUM1441ARSZ-RL7 have any built-in noise protection features?
Yes, it has an input glitch filter to protect against extraneous noise disturbances.
- What is the common-mode transient immunity of the ADUM1441ARSZ-RL7?
The common-mode transient immunity is 25 kV/µs.
