Overview
The ADuM1200BRZ, produced by Analog Devices Inc., is a dual-channel digital isolator based on the iCoupler® technology. This component combines high-speed CMOS and monolithic magnetic isolation to provide reliable and high-performance isolation solutions. It is designed to ensure voltage translation across the isolation barrier, making it suitable for a variety of applications requiring electrical isolation and data integrity.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|---|
| Maximum Data Rate | - | - | - | 25 Mbps | - | NRZ signal |
| Propagation Delay | tPHL, tPLH | 15 | - | 55 ns | - | CL = 15 pF, CMOS signal levels |
| Pulse Width Distortion | PWD | - | - | 3 ns | - | For CR grade |
| Channel-to-Channel Matching | tPSKCD/tPSKOD | - | - | 3 ns | - | For CR grade |
| Output Rise/Fall Time | tR/tF | - | - | 5 ns | - | 10% to 90% |
| Common-Mode Transient Immunity | - | - | - | >25 kV/μs | - | - |
| Ambient Operating Temperature | TA | -55°C | - | 125°C | - | - |
| Supply Voltages | VDD1, VDD2 | -0.5 V | - | 7.0 V | - | - |
Key Features
- Bidirectional Communication: Supports bidirectional data transfer across the isolation barrier.
- High-Speed Data Transfer: Capable of data rates up to 25 Mbps (NRZ signal).
- Voltage Translation: Provides 3 V/5 V level translation.
- High Temperature Operation: Operates up to 125°C, making it suitable for harsh environments.
- Precise Timing Characteristics: Low pulse width distortion (<3 ns for CR grade) and tight channel-to-channel matching (<3 ns for CR grade).
- Common-Mode Transient Immunity: High immunity to common-mode transients (>25 kV/μs).
- Safety and Regulatory Approvals: UL recognition, CSA Component Acceptance Notice, and VDE Certificate of Conformity.
- Automotive Grade: Qualified for automotive applications, including hybrid electric vehicles, battery monitors, and motor drives.
Applications
- Size-Critical Multichannel Isolation: Ideal for applications where space is limited.
- SPI Interface/Data Converter Isolation: Used in SPI and data converter interfaces to ensure electrical isolation.
- RS-232/RS-422/RS-485 Transceiver Isolation: Suitable for isolating serial communication interfaces.
- Digital Field Bus Isolation: Used in various field bus applications to ensure reliable data transfer.
- Automotive Systems: Applied in hybrid electric vehicles, battery monitors, and motor drives.
Q & A
- What is the maximum data rate of the ADuM1200BRZ?
The ADuM1200BRZ supports data rates up to 25 Mbps (NRZ signal).
- What is the operating temperature range of the ADuM1200BRZ?
The component operates from -55°C to 125°C.
- Does the ADuM1200BRZ support bidirectional communication?
Yes, it supports bidirectional data transfer across the isolation barrier.
- What is the common-mode transient immunity of the ADuM1200BRZ?
The component has a common-mode transient immunity of >25 kV/μs.
- Is the ADuM1200BRZ qualified for automotive applications?
Yes, it is qualified for automotive applications, including hybrid electric vehicles, battery monitors, and motor drives.
- What are the supply voltage ranges for the ADuM1200BRZ?
The supply voltages range from -0.5 V to 7.0 V.
- Does the ADuM1200BRZ have any safety and regulatory approvals?
Yes, it has UL recognition, CSA Component Acceptance Notice, and VDE Certificate of Conformity.
- What is the pulse width distortion of the ADuM1200BRZ?
The pulse width distortion is less than 3 ns for the CR grade.
- How does the ADuM1200BRZ ensure dc correctness?
The component has a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
- What are some typical applications of the ADuM1200BRZ?
Typical applications include size-critical multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceiver isolation, and digital field bus isolation.
