Overview
The ADUM1201WSRZ55, produced by Analog Devices Inc., is a dual-channel digital isolator that utilizes the company's iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technology to provide superior isolation and data transfer characteristics. It is designed to offer high data rates, precise timing, and robust common-mode transient immunity, making it suitable for a variety of applications requiring reliable and high-speed data isolation.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Input Supply Current per Channel (Quiescent) | IDDI (Q) | 0.26 | 0.35 | 0.50 | mA | DC to 1 MHz logic signal freq. |
| Output Supply Current per Channel (Quiescent) | IDDO (Q) | 0.11 | 0.20 | 0.25 | mA | DC to 1 MHz logic signal freq. |
| Logic High Input Threshold | VIH | 0.7 VDD1, VDD2 | V | |||
| Logic Low Input Threshold | VIL | 0.3 VDD1, VDD2 | V | |||
| Logic High Output Voltages | VOAH, VOBH | −0.1 | 3.0 | V | IOx = −20 µA, VIx = VIxH | |
| Logic Low Output Voltages | VOAL, VOBL | 0.0 | 0.1 | V | IOx = 20 µA, VIx = VIxL | |
| Maximum Data Rate | 25 Mbps | CR Grade Only | ||||
| Propagation Delay | tPHL, tPLH | 50 | 150 | ns | CL = 15 pF, CMOS signal levels | |
| Operating Temperature | −40 | 125 | °C | |||
| Isolation Voltage | 2500 Vrms | UL 1577 |
Key Features
- High-Speed Data Transfer: Supports data rates up to 25 Mbps (NRZ) with precise timing characteristics and low pulse width distortion (<3 ns for CR grade).
- Voltage Translation: Provides 3 V/5 V level translation across the isolation barrier, making it versatile for different voltage systems.
- High Common-Mode Transient Immunity: Offers >25 kV/μs common-mode transient immunity, ensuring reliable operation in noisy environments.
- Automotive Grade: Qualified for automotive applications with high temperature operation up to 125°C.
- Compact Package: Available in an 8-pin SOIC package, suitable for size-critical applications.
- Safety and Regulatory Approvals: Meets UL 1577, CSA, and VDE safety standards, ensuring compliance with various regulatory requirements.
Applications
- Size-Critical Multichannel Isolation: Ideal for applications where space is limited but multiple isolation channels are required.
- SPI Interface/Data Converter Isolation: Suitable for isolating SPI interfaces and data converters in various systems.
- RS-232/RS-422/RS-485 Transceiver Isolation: Used for isolating serial communication interfaces to enhance system reliability.
- Digital Field Bus Isolation: Applicable in industrial automation and control systems requiring robust isolation.
- Hybrid Electric Vehicles and Battery Monitoring: Qualified for use in automotive and battery monitoring systems due to its high temperature and reliability features).
Q & A
- What is the maximum data rate supported by the ADUM1201WSRZ55?
The ADUM1201WSRZ55 supports data rates up to 25 Mbps (NRZ) for the CR grade).
- What is the operating temperature range of the ADUM1201WSRZ55?
The operating temperature range is from −40°C to 125°C, with the latter being applicable for automotive grade versions).
- What is the isolation voltage of the ADUM1201WSRZ55?
The isolation voltage is 2500 Vrms, meeting UL 1577 standards).
- Does the ADUM1201WSRZ55 support voltage translation?
Yes, it supports 3 V/5 V level translation across the isolation barrier).
- What is the package type and size of the ADUM1201WSRZ55?
The component is available in an 8-pin SOIC package with dimensions of 4.90 x 3.90 mm).
- Is the ADUM1201WSRZ55 suitable for automotive applications?
Yes, it is qualified for automotive applications and meets relevant safety and regulatory standards).
- What is the common-mode transient immunity of the ADUM1201WSRZ55?
The common-mode transient immunity is greater than 25 kV/μs).
- What are the typical propagation delays for the ADUM1201WSRZ55?
The propagation delays (tPHL, tPLH) are between 50 ns and 150 ns).
- Does the ADUM1201WSRZ55 have any safety certifications?
Yes, it has certifications from UL, CSA, and VDE, ensuring compliance with various safety standards).
- What are some common applications of the ADUM1201WSRZ55?
Common applications include size-critical multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceiver isolation, and digital field bus isolation).
