Overview
The ADUM1412ARWZ is a quad-channel digital isolator produced by Analog Devices Inc., utilizing the proprietary iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technologies to provide superior performance compared to traditional optocouplers. By eliminating the use of LEDs and photodiodes, the ADUM1412ARWZ simplifies design and avoids common issues associated with optocouplers, such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Supply Voltage (VDD1, VDD2) | 2.7 | 5.5 | V | ||
| Maximum Data Rate | 10 Mbps | CL = 15 pF, CMOS signal levels | |||
| Propagation Delay (tPHL, tPLH) | 20 | 65 | 100 ns | CL = 15 pF, CMOS signal levels | |
| Pulse Width Distortion (PWD) | 40 ns | CL = 15 pF, CMOS signal levels | |||
| Supply Current (IDD1, IDD2) at 10 Mbps | 2.6 | 3.8 mA | 5 MHz logic signal frequency | ||
| Logic High Input Threshold (VIH) | 1.6 V | ||||
| Logic Low Input Threshold (VIL) | 0.4 V | ||||
| Operating Temperature | -40°C | 105°C |
Key Features
- Low power operation: Consumes one-tenth to one-sixth the power of optocouplers at comparable data rates
- Bidirectional communication and 3 V/5 V level translation
- High temperature operation: Up to 105°C
- Programmable default output state
- High common-mode transient immunity: >25 kV/µs
- 16-lead, RoHS compliant, SOIC wide body package
- Safety and regulatory approvals: UL recognition, CSA Component Acceptance Notice, VDE certificate of conformity, TÜV approval
Applications
- General-purpose multichannel isolation
- SPI interface/data converter isolation
- RS-232/RS-422/RS-485 transceivers
- Industrial field bus isolation
Q & A
- What is the ADUM1412ARWZ based on?
The ADUM1412ARWZ is based on Analog Devices' iCoupler® technology, combining high-speed CMOS and monolithic air core transformer technologies.
- What are the key advantages over traditional optocouplers?
The ADUM1412ARWZ avoids the use of LEDs and photodiodes, eliminating issues such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects.
- What is the maximum data rate of the ADUM1412ARWZ?
The maximum data rate is up to 10 Mbps.
- What is the operating temperature range of the ADUM1412ARWZ?
The operating temperature range is from -40°C to 105°C.
- Does the ADUM1412ARWZ support voltage translation?
Yes, it supports 3 V/5 V level translation.
- What are the safety and regulatory approvals for the ADUM1412ARWZ?
The component has UL recognition, CSA Component Acceptance Notice, VDE certificate of conformity, and TÜV approval.
- How does the ADUM1412ARWZ handle default output states?
The ADUM1412ARWZ has a programmable default output state, allowing users to define the logic state of the outputs in the absence of input power.
- What is the common-mode transient immunity of the ADUM1412ARWZ?
The common-mode transient immunity is greater than 25 kV/µs.
- What package type is the ADUM1412ARWZ available in?
The component is available in a 16-lead, RoHS compliant, SOIC wide body package.
- What are some common applications of the ADUM1412ARWZ?
Common applications include general-purpose multichannel isolation, SPI interface/data converter isolation, RS-232/RS-422/RS-485 transceivers, and industrial field bus isolation.
