Overview
The ADUM1285BRZ is a dual-channel digital isolator produced by Analog Devices Inc. This component utilizes Analog Devices' iCoupler® technology, which combines high-speed CMOS and monolithic air core transformer technology to provide superior isolation and performance characteristics. The ADUM1285BRZ is designed to offer high-speed data transfer, low propagation delay, and low dynamic power consumption, making it an ideal choice for various industrial and high-reliability applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Data Rate | - | - | 100 | Mbps | - | |
| Propagation Delay | - | - | 23 | ns | - | |
| Supply Voltage | VDDx | 3.3 | - | 5 | V | - |
| Quiescent Input Supply Current | IDDI(Q) | 0.54 | 0.8 | - | mA | - |
| Quiescent Output Supply Current | IDDO(Q) | 1.6 | 2.0 | - | mA | - |
| Dynamic Input Supply Current | IDDI(D) | - | 0.09 | - | mA/Mbps | - |
| Dynamic Output Supply Current | IDDO(D) | - | 0.04 | - | mA/Mbps | - |
| Common-Mode Transient Immunity | |CM| | 25 | 35 | - | kV/μs | - |
| Input-to-Output Resistance | RI-O | 10^13 | - | - | Ω | - |
| Input-to-Output Capacitance | CI-O | - | 2 | - | pF | f = 1 MHz |
Key Features
- Up to 100 Mbps data rate (NRZ)
- Low propagation delay: 23 ns typical
- Low dynamic power consumption
- Bidirectional communication
- 3.3 V to 5 V level translation
- High temperature operation: up to 125°C
- High common-mode transient immunity: >25 kV/μs
- Independent isolation channels with tight channel-to-channel matching
Applications
- Industrial control systems
- Medical devices requiring high isolation
- Automotive systems
- High-speed data communication systems
- Power supply and motor control systems
Q & A
- What is the maximum data rate of the ADUM1285BRZ?
The ADUM1285BRZ supports up to 100 Mbps data rate (NRZ).
- What is the typical propagation delay of the ADUM1285BRZ?
The typical propagation delay is 23 ns.
- What is the common-mode transient immunity of the ADUM1285BRZ?
The common-mode transient immunity is greater than 25 kV/μs.
- What are the supported supply voltages for the ADUM1285BRZ?
The ADUM1285BRZ supports supply voltages from 3.3 V to 5 V.
- Is the ADUM1285BRZ suitable for high-temperature applications?
Yes, it can operate up to 125°C.
- Does the ADUM1285BRZ support bidirectional communication?
Yes, it supports bidirectional communication.
- What is the input-to-output resistance of the ADUM1285BRZ?
The input-to-output resistance is 10^13 Ω.
- What is the input-to-output capacitance of the ADUM1285BRZ?
The input-to-output capacitance is 2 pF at 1 MHz.
- What are some typical applications of the ADUM1285BRZ?
Typical applications include industrial control systems, medical devices, automotive systems, and high-speed data communication systems.
- Is the ADUM1285BRZ approved by regulatory organizations?
Yes, it is approved by various regulatory organizations as listed in the datasheet.
