Overview
The ADUM1281CRZ-RL7 is a dual-channel digital isolator produced by Analog Devices Inc., utilizing the iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technology to provide superior performance characteristics compared to optocoupler devices and other integrated couplers. It is designed for high-speed data transfer and isolation in various industrial and automotive applications.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Data Rate | - | - | 100 Mbps | - | NRZ | - |
| Propagation Delay | - | - | 23 ns | - | - | - |
| Supply Voltage | VDDx | 3.3 V | - | 5 V | - | - |
| Quiescent Input Supply Current | IDDI(Q) | 0.54 mA | 0.8 mA | - | - | No load |
| Quiescent Output Supply Current | IDDO(Q) | 1.6 mA | 2.0 mA | - | - | No load |
| Dynamic Input Supply Current | IDDI(D) | - | 0.09 mA/Mbps | - | - | - |
| Dynamic Output Supply Current | IDDO(D) | - | 0.04 mA/Mbps | - | - | - |
| Output Rise/Fall Time | tR/tF | - | 2.5 ns | - | 10% to 90% | - |
| Input-to-Output Resistance | RI-O | 1013 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
Applications
- Industrial I/O
- Automotive Interfaces (CAN, Audio, Ethernet)
- RS-232 / RS-422 / RS-485 / RS-562
- Local Interconnect Transceivers (LIN TxRx)
- LVDS/MLVDS
- Signal Integrity and Signal Line Protection
Q & A
- What is the ADUM1281CRZ-RL7 used for? The ADUM1281CRZ-RL7 is used as a dual-channel digital isolator for high-speed data transfer and isolation in various applications.
- What is the maximum data rate of the ADUM1281CRZ-RL7? The maximum data rate is up to 100 Mbps (NRZ).
- What is the typical propagation delay of the ADUM1281CRZ-RL7? The typical propagation delay is 23 ns.
- What are the supported supply voltages for the ADUM1281CRZ-RL7? The supported supply voltages are 3.3 V to 5 V.
- Is the ADUM1281CRZ-RL7 suitable for high-temperature environments? Yes, it can operate up to 125°C.
- What is the common-mode transient immunity of the ADUM1281CRZ-RL7? The common-mode transient immunity is >25 kV/μs.
- What packaging options are available for the ADUM1281CRZ-RL7? It is available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® packaging.
- What are some common applications of the ADUM1281CRZ-RL7? Common applications include industrial I/O, automotive interfaces, RS-232 / RS-422 / RS-485 / RS-562, and local interconnect transceivers.
- Does the ADUM1281CRZ-RL7 support bidirectional communication? Yes, it supports bidirectional communication.
- What is the input-to-output resistance of the ADUM1281CRZ-RL7? The input-to-output resistance is 1013 Ω.
