Overview
The ADUM1411BRWZ-RL is a four-channel digital isolator produced by Analog Devices Inc., utilizing the company's iCoupler® technology. This component combines high-speed CMOS and monolithic air core transformer technologies to provide superior performance characteristics compared to traditional optocouplers. By avoiding the use of LEDs and photodiodes, the ADUM1411 eliminates common issues associated with optocouplers, such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects. This results in stable and reliable digital isolation.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Operating Temperature | -40°C | 105°C | |||
| Supply Voltage (VDD1, VDD2) | 2.7 V | 5.5 V | V | ||
| Supply Current per Channel (0 Mbps to 2 Mbps, 3V) | 0.8 mA | 1.8 mA | mA | DC to 2 Mbps | |
| Supply Current per Channel (10 Mbps, 3V) | 1.8 mA | mA | 10 Mbps | ||
| Maximum Data Rate | 10 Mbps | Mbps | CL = 15 pF, CMOS signal levels | ||
| Propagation Delay (tPHL, tPLH) | 25 ns | 70 ns | 100 ns | ns | CL = 15 pF, CMOS signal levels |
| Pulse Width Distortion (PWD) | 40 ns | ns | CL = 15 pF, CMOS signal levels | ||
| Propagation Delay Skew (tPSK) | 50 ns | ns | CL = 15 pF, CMOS signal levels | ||
| Channel-to-Channel Matching (tPSKCD/OD) | 50 ns | ns | CL = 15 pF, CMOS signal levels | ||
| Logic High Input Threshold (VIH) | 1.6 V | V | |||
| Logic Low Input Threshold (VIL) | 0.4 V | V |
Key Features
- Low power operation with 0.8 mA per channel maximum at 0 Mbps to 2 Mbps and 1.8 mA per channel maximum at 10 Mbps for 3V operation.
- Bidirectional communication and 3V/5V level translation.
- High temperature operation up to 105°C.
- Up to 10 Mbps data rate (NRZ).
- Programmable default output state.
- High common-mode transient immunity: >25 kV/µs.
- 16-lead, RoHS compliant, SOIC wide body package.
- Safety and regulatory approvals including UL recognition, CSA Component Acceptance Notice, VDE certificate of conformity, and TÜV approval.
Applications
- General-purpose multichannel isolation.
- SPI interface/data converter isolation.
- RS-232/RS-422/RS-485 transceivers.
- Automotive interfaces (CAN, Audio, Ethernet).
- Industrial I/O and other industrial applications).
Q & A
- What is the ADUM1411BRWZ-RL used for?
The ADUM1411BRWZ-RL is used for digital isolation in various applications, including general-purpose multichannel isolation, SPI interface/data converter isolation, and RS-232/RS-422/RS-485 transceivers.
- What is the operating temperature range of the ADUM1411BRWZ-RL?
The operating temperature range is from -40°C to 105°C.
- What are the supply voltage and current specifications for the ADUM1411BRWZ-RL?
The supply voltage range is 2.7V to 5.5V, and the supply current per channel is up to 1.8 mA at 10 Mbps for 3V operation.
- What is the maximum data rate supported by the ADUM1411BRWZ-RL?
The maximum data rate supported is up to 10 Mbps (NRZ).
- Does the ADUM1411BRWZ-RL support level translation?
Yes, it supports 3V/5V level translation.
- What kind of regulatory approvals does the ADUM1411BRWZ-RL have?
The device has UL recognition, CSA Component Acceptance Notice, VDE certificate of conformity, and TÜV approval.
- What is the package type of the ADUM1411BRWZ-RL?
The device is packaged in a 16-lead, RoHS compliant, SOIC wide body package.
- How does the ADUM1411BRWZ-RL ensure dc correctness and magnetic field immunity?
The device uses refresh pulses to ensure dc correctness and has a sensing threshold to tolerate induced voltages from magnetic fields, ensuring stable operation.
- What are the key benefits of using iCoupler technology in the ADUM1411BRWZ-RL?
The iCoupler technology eliminates issues associated with optocouplers such as uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects, providing stable and reliable performance.
- Can the ADUM1411BRWZ-RL be used in high-temperature environments?
Yes, it can operate up to 105°C, making it suitable for high-temperature environments.
