Overview
The ADUM1200BR is a dual-channel digital isolator produced by Analog Devices Inc. This component is designed to provide high-speed, low-power isolation for digital signals, ensuring reliable and safe data transmission across different voltage domains. The ADUM1200BR features advanced digital isolation technology, making it suitable for a wide range of applications that require high data rates and precise timing characteristics.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Input Supply Current per Channel (Quiescent) | IDDI (Q) | 0.50 | 0.60 | mA | VDD1 = VDD2 = 5 V, TA = 25°C | |
| Output Supply Current per Channel (Quiescent) | IDDO (Q) | 0.11 | 0.20 | mA | VDD1 = VDD2 = 5 V, TA = 25°C | |
| Maximum Data Rate | 10 Mbps | CL = 15 pF, CMOS signal levels | ||||
| Propagation Delay | tPHL, tPLH | 15 | 55 ns | CL = 15 pF, CMOS signal levels | ||
| Pulse Width Distortion | PWD | 3 ns | CL = 15 pF, CMOS signal levels | |||
| Channel-to-Channel Matching | tPSKCD/OD | 3 ns / 15 ns | CL = 15 pF, CMOS signal levels | |||
| Output Rise/Fall Time (10% to 90%) | tR/tF | 10 ns | CL = 15 pF, CMOS signal levels | |||
| Common-Mode Transient Immunity (CMTI) | >25 kV/μs | |||||
| Isolation Voltage | 2500 Vrms for 1 minute | UL 1577 |
Key Features
- Bidirectional Communication: Supports bidirectional data transfer across the isolation barrier.
- High Data Rate: Capable of operating at data rates up to 25 Mbps (NRZ).
- Precise Timing Characteristics: Offers low pulse width distortion (<3 ns) and tight channel-to-channel matching (<3 ns for CR grade).
- High Temperature Operation: Qualified for operation up to 125°C, including automotive grade versions.
- Voltage Translation: Supports 3 V/5 V level translation across the isolation barrier.
- High Common-Mode Transient Immunity: >25 kV/μs CMTI for robust performance in noisy environments.
- Safety and Regulatory Approvals: UL recognition, CSA Component Acceptance Notice, and VDE Certificate of Conformity.
Applications
- Size-Critical Multichannel Isolation: Ideal for applications where space is limited.
- SPI Interface/Data Converter Isolation: Suitable for isolating SPI interfaces and data converters.
- RS-232/RS-422/RS-485 Transceiver Isolation: Used in serial communication systems to ensure signal integrity.
- Digital Field Bus Isolation: Applicable in various field bus protocols for industrial automation.
- Hybrid Electric Vehicles, Battery Monitor, and Motor Drive: Qualified for automotive applications, including battery monitoring and motor drive systems.
Q & A
- What is the maximum data rate of the ADUM1200BR?
The ADUM1200BR can operate at data rates up to 10 Mbps.
- What is the isolation voltage of the ADUM1200BR?
The ADUM1200BR has an isolation voltage of 2500 Vrms for 1 minute according to UL 1577.
- Does the ADUM1200BR support bidirectional communication?
- What is the maximum operating temperature of the ADUM1200BR?
The ADUM1200BR is qualified for operation up to 125°C, including automotive grade versions.
- What are the common applications of the ADUM1200BR?
The ADUM1200BR is used in size-critical multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceiver isolation, digital field bus isolation, and automotive applications such as hybrid electric vehicles, battery monitors, and motor drives.
- Does the ADUM1200BR have any safety and regulatory approvals?
- What is the pulse width distortion of the ADUM1200BR?
- How does the ADUM1200BR handle channel-to-channel matching?
- What is the common-mode transient immunity (CMTI) of the ADUM1200BR?
25 kV/μs. - Can the ADUM1200BR operate with different voltage levels?
