Overview
The ADuM1400BRWZ 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. It is particularly useful in applications requiring reliable and high-speed data transfer across different voltage domains while maintaining electrical isolation.
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 2 Mbps |
| Output Supply Current per Channel, Quiescent | IDDO (Q) | 0.19 | 0.21 | - | mA | DC to 2 Mbps |
| Total Supply Current, Four Channels | IDD1 (Q), IDD2 (Q) | 2.2 | 2.8 | - | mA | DC to 1 MHz logic signal freq. |
| Maximum Data Rate | - | - | - | 10 Mbps (BRW and CRW Grades Only) | - | 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 using iCoupler technology
- Low pulse width distortion (<2 ns for CRW grade)
- Tight channel-to-channel matching (<2 ns for CRW grade)
- High-speed data transfer up to 10 Mbps (BRW and CRW grades)
- Propagation delay of 50 ns to 100 ns
- Isolation voltage of 2500 Vrms
- Common mode transient immunity (CMTI) of 25 kV/μs
- Automotive grade versions available (ADuM1401W, ADuM1402W)
- Patented refresh feature ensuring dc correctness
Applications
- Automotive interfaces (CAN, Audio, Ethernet)
- Industrial I/O
- IO-Link
- Local Interconnect Network (LIN) transceivers
- LVDS/MLVDS
- Multiprotocol transceivers
- Powerline communications
- RS-232 / RS-422 / RS-485 / RS-562 interfaces
- Signal line protection and signal integrity applications
Q & A
- What is the ADuM1400BRWZ used for?
The ADuM1400BRWZ is a quad-channel digital isolator used for high-speed data transfer across different voltage domains while maintaining electrical isolation. - What is the maximum data rate of the ADuM1400BRWZ?
The maximum data rate is up to 10 Mbps for BRW and CRW grades. - What is the isolation voltage of the ADuM1400BRWZ?
The isolation voltage is 2500 Vrms. - What is the common mode transient immunity (CMTI) of the ADuM1400BRWZ?
The CMTI is 25 kV/μs. - Does the ADuM1400BRWZ have any automotive grade versions?
Yes, automotive grade versions are available as ADuM1401W and ADuM1402W. - What is the propagation delay of the ADuM1400BRWZ?
The propagation delay is between 50 ns and 100 ns. - What is the pulse width distortion of the ADuM1400BRWZ?
The pulse width distortion is less than 40 ns. - What technology does the ADuM1400BRWZ use for isolation?
The ADuM1400BRWZ uses Analog Devices' iCoupler technology for isolation. - What are some common applications of the ADuM1400BRWZ?
Common applications include automotive interfaces, industrial I/O, IO-Link, and signal line protection. - Does the ADuM1400BRWZ have a patented refresh feature?
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.
