Overview
The ADUM1401BRW is a quad-channel digital isolator produced by Analog Devices Inc. It utilizes Analog Devices' iCoupler® technology, which combines high-speed CMOS and monolithic transformer technology to provide reliable and high-speed data transfer across an isolation barrier. This component is designed to ensure dc correctness in the absence of input logic transitions and when power is not applied to one of the supplies, thanks to its patented refresh feature.
Key Specifications
| Parameter | 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 frequency |
| Output Supply Current per Channel, Quiescent (IDDO(Q)) | 0.19 | 0.21 | - | mA | DC to 1 MHz logic signal frequency |
| Total Supply Current, Four Channels (VDD1 Supply Current (IDD1(Q))) | 1.8 | 2.4 | - | mA | DC to 1 MHz logic signal frequency |
| Voltage - Supply | 2.7 | - | 5.5 | V | - |
| Voltage - Isolation | - | - | 2500Vrms | Vrms | - |
| Data Rate | - | - | 10 Mbps | Mbps | - |
| Propagation Delay | 50 | - | 100 ns | ns | CL = 15 pF, CMOS signal levels |
| Output Type | - | - | Logic | - | - |
| Package | - | - | 16-SOIC W | - | - |
Key Features
- Quad-Channel Isolation: The ADUM1401BRW provides four independent isolation channels, making it suitable for applications requiring multiple signal isolations.
- High-Speed Data Transfer: Supports data rates up to 10 Mbps, with propagation delays as low as 50 ns.
- Low Pulse Width Distortion: Ensures minimal distortion with pulse width distortion of less than 2 ns for CRW grade.
- Tight Channel-to-Channel Matching: Offers tight channel-to-channel matching, which is crucial for synchronized signal transmission.
- High Isolation Voltage: Provides 2500 Vrms isolation voltage, ensuring robust electrical isolation between the input and output sides.
- Patented Refresh Feature: Ensures dc correctness even in the absence of input logic transitions or when power is not applied to one of the supplies.
Applications
- Industrial Control Systems: Suitable for use in industrial control systems where high-speed data transfer and electrical isolation are critical.
- Medical Devices: Used in medical devices to ensure patient safety by providing high isolation voltage and reliable data transfer.
- Automotive Systems: Available in automotive grade versions, making it suitable for use in automotive interfaces and systems.
- Communication Systems: Can be used in various communication systems, including RS-232, RS-422, and RS-485 interfaces.
- General Purpose Isolation: Applicable in any scenario requiring reliable and high-speed digital signal isolation.
Q & A
- What is the ADUM1401BRW used for?
The ADUM1401BRW is a quad-channel digital isolator used to provide electrical isolation and high-speed data transfer between different parts of a system.
- What is the maximum data rate supported by the ADUM1401BRW?
The ADUM1401BRW supports a maximum data rate of 10 Mbps.
- What is the propagation delay of the ADUM1401BRW?
The propagation delay of the ADUM1401BRW is between 50 ns and 100 ns.
- What is the isolation voltage of the ADUM1401BRW?
The ADUM1401BRW provides an isolation voltage of 2500 Vrms.
- What package type is the ADUM1401BRW available in?
The ADUM1401BRW is available in a 16-SOIC W package.
- Does the ADUM1401BRW have any special features for ensuring dc correctness?
Yes, the ADUM1401BRW has a patented refresh feature that ensures dc correctness even in the absence of input logic transitions or when power is not applied to one of the supplies.
- What are some common applications of the ADUM1401BRW?
The ADUM1401BRW is commonly used in industrial control systems, medical devices, automotive systems, and general-purpose digital signal isolation.
- Is the ADUM1401BRW available in automotive grade versions?
Yes, the ADUM1401BRW is available in automotive grade versions.
- What is the supply voltage range for the ADUM1401BRW?
The supply voltage range for the ADUM1401BRW is from 2.7 V to 5.5 V.
- Does the ADUM1401BRW support multiple logic signal frequencies?
Yes, the ADUM1401BRW supports various logic signal frequencies, including DC to 2 Mbps, 10 Mbps, and 90 Mbps for CRW grade.
