Overview
The ADUM1401BRWZ is a quad-channel digital isolator produced by Analog Devices Inc., utilizing the company's proprietary iCoupler technology. This device is designed to provide high-speed digital isolation with low pulse width distortion and tight channel-to-channel matching. The ADUM1401BRWZ is part of the ADuM1400/ADuM1401/ADuM1402 family, which offers robust isolation and reliability 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 | DC to 1 MHz logic signal freq. | |
| Output Supply Current per Channel, Quiescent | IDDO (Q) | 0.19 | 0.21 | mA | DC to 1 MHz logic signal freq. | |
| Total Supply Current, Four Channels | IDD1 (Q), IDD2 (Q) | 1.8 | 2.4 | mA | DC to 1 MHz logic signal freq. | |
| Total Supply Current at 10 Mbps | IDD1 (10), IDD2 (10) | 7.1 | 9.0 | mA | 5 MHz logic signal freq. | |
| Total Supply Current at 90 Mbps (CRW Grade Only) | IDD1 (90), IDD2 (90) | 57 | 82 | mA | 45 MHz logic signal freq. | |
| 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 |
Key Features
- Quad-channel digital isolation using iCoupler technology
- Low pulse width distortion (<2 ns for CRW grade)
- Tight channel-to-channel matching (<2 ns for CRW grade)
- Patented refresh feature ensuring dc correctness
- High-speed operation up to 90 Mbps (CRW grade)
- Low quiescent current consumption
- Robust isolation with high common-mode transient immunity
Applications
- Automotive interfaces (CAN, Audio, Ethernet)
- Industrial I/O and control systems
- IO-Link and other industrial communication protocols
- RS-232 / RS-422 / RS-485 serial communication
- USB and other high-speed digital interfaces
- Powerline communications and signal line protection
- Broadband switches and multiprotocol transceivers
Q & A
- What is the ADUM1401BRWZ used for?
The ADUM1401BRWZ is a quad-channel digital isolator used to provide high-speed digital isolation in various applications, including automotive, industrial, and communication systems.
- What is the maximum data rate of the ADUM1401BRWZ?
The maximum data rate of the ADUM1401BRWZ can be up to 90 Mbps for the CRW grade.
- What is the quiescent current consumption of the ADUM1401BRWZ?
The quiescent current consumption is approximately 1.8 to 2.4 mA for VDD1 and 1.2 to 1.8 mA for VDD2 at DC to 1 MHz logic signal frequency.
- What is the propagation delay of the ADUM1401BRWZ?
The propagation delay is between 50 to 100 ns with a load capacitance of 15 pF and CMOS signal levels.
- Does the ADUM1401BRWZ 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 when power is not applied to one of the supplies.
- What are some common applications of the ADUM1401BRWZ?
Common applications include automotive interfaces, industrial I/O, IO-Link, serial communication protocols, and powerline communications.
- What is the package type of the ADUM1401BRWZ?
The ADUM1401BRWZ is available in a SOIC-16 package.
- Is the ADUM1401BRWZ RoHS compliant?
Yes, the ADUM1401BRWZ is RoHS compliant.
- What are the operating voltage ranges for the ADUM1401BRWZ?
The device can operate with supply voltages of 3 V or 5 V, and it supports mixed 3 V/5 V or 5 V/3 V configurations.
- How does the ADUM1401BRWZ ensure channel-to-channel matching?
The ADUM1401BRWZ ensures tight channel-to-channel matching, with a maximum difference of less than 2 ns for the CRW grade.
