Overview
The ADUM1400ARWZ is a quad-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 and performance characteristics compared to traditional optocoupler devices. By eliminating the use of LEDs and photodiodes, the ADUM1400ARWZ avoids common design difficulties associated with optocouplers and ensures reliable operation in various applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Input Supply Current per Channel, Quiescent | IDDI (Q) | 0.50 | 0.53 | - | mA | - |
| Output Supply Current per Channel, Quiescent | IDDO (Q) | 0.19 | 0.21 | - | mA | - |
| Total Supply Current, Four Channels (DC to 2 Mbps) | IDD1 (Q), IDD2 (Q) | 2.2 | 2.8 | - | mA | DC to 1 MHz logic signal freq. |
| Maximum Data Rate | - | - | - | 1 Mbps | - | CL = 15 pF, CMOS signal levels |
| Propagation Delay | tPHL, tPLH | 50 | 65 | 100 ns | - | CL = 15 pF, CMOS signal levels |
| Pulse Width Distortion | PWD | - | - | 40 ns | - | CL = 15 pF, CMOS signal levels |
| Isolation Voltage | - | - | - | 2500 Vrms | - | - |
| Common Mode Transient Immunity (CMTI) | - | - | - | 25 kV/μs | - | - |
Key Features
- Quad-channel digital isolation with 4/0 channel directionality
- Based on Analog Devices' iCoupler® technology, combining high-speed CMOS and monolithic air core transformer technology
- Low pulse width distortion (<2 ns for CRW grade) and tight channel-to-channel matching (<2 ns for CRW grade)
- Patented refresh feature ensuring dc correctness in the absence of input logic transitions and when power is not applied to one of the supplies
- High common mode transient immunity (CMTI) of 25 kV/μs
- Operating temperatures up to 105°C and 125°C for different grades
Applications
- General-purpose multichannel isolation
- SPI interface and data converter isolation
- RS-232, RS-422, and RS-485 transceivers
- Industrial field bus isolation
- Automotive systems (e.g., CAN, audio, Ethernet)
- Industrial I/O and IO-Link
- Level translators and signal line protection
Q & A
- What is the ADUM1400ARWZ used for? The ADUM1400ARWZ is a quad-channel digital isolator used for providing robust signal isolation in various applications, including industrial, automotive, and general-purpose use.
- What technology does the ADUM1400ARWZ use? The ADUM1400ARWZ uses Analog Devices' iCoupler® technology, which combines high-speed CMOS and monolithic air core transformer technology.
- What is the maximum data rate of the ADUM1400ARWZ? The maximum data rate of the ADUM1400ARWZ is 1 Mbps for the ARW grade and up to 90 Mbps for the CRW grade.
- What is the isolation voltage of the ADUM1400ARWZ? The isolation voltage of the ADUM1400ARWZ is 2500 Vrms.
- What is the common mode transient immunity (CMTI) of the ADUM1400ARWZ? The CMTI of the ADUM1400ARWZ is 25 kV/μs.
- What are the operating temperatures for the ADUM1400ARWZ? The ADUM1400ARWZ can operate up to 105°C and 125°C for different grades.
- Does the ADUM1400ARWZ have any special features for ensuring dc correctness? Yes, the ADUM1400ARWZ has a patented refresh feature that ensures dc correctness in the absence of input logic transitions and when power is not applied to one of the supplies.
- What are some common applications of the ADUM1400ARWZ? Common applications include general-purpose multichannel isolation, SPI interface and data converter isolation, RS-232/RS-422/RS-485 transceivers, industrial field bus isolation, and automotive systems.
- What is the package type of the ADUM1400ARWZ? The ADUM1400ARWZ is available in a 16-SOIC package.
- Is the ADUM1400ARWZ certified by any regulatory bodies? Yes, the ADUM1400ARWZ has certifications such as IEC/EN/UL/CSA 61010-1 and TÜV approval.
