Product Overview
The ADUM1411ARWZ is a four-channel digital isolator from Analog Devices based on i Coupler magnetic isolation technology, with two channels in each direction (2/2 channel configuration). The device provides 2.5 kV rms isolation and supports data rates up to 10 Mbps across all four channels. Combining high-speed CMOS with monolithic air-core transformer technology, the ADuM1411 delivers performance superior to optocoupler alternatives, including lower power consumption (one-tenth to one-sixth of comparable optocouplers), better stability over temperature and time, and tighter channel-to-channel timing matching. The device operates with supply voltages from 2.7V to 5.5V on either side of the isolation barrier, enabling voltage translation between different voltage domains. A default output control pin allows the user to define the output state when input power is absent.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
| Number of Channels | 2/2 config | 4 independent channels | |||
| Channel Direction | 2 Side1 to Side2, 2 Side2 to Side1 | ||||
| Isolation Voltage | UL 1577, 1 min | 2500 | V rms | ||
| Max Data Rate | All channels | 10 | Mbps | ||
| Propagation Delay | 3.3V | 50 | 75 | ns | |
| Pulse Width Distortion | 8 | ns | |||
| Channel Matching | Same direction | 15 | ns | ||
| CMTI (Min) | 25 | kV/us | |||
| Supply Voltage | Both sides | 2.7 | 5.5 | V | |
| Supply Current/ch | Quiescent, 5V | 0.9 | 1.5 | mA | |
| Default Output Ctrl | SEL pin | Controls state when input power absent | |||
| DC Correctness | Patented refresh | Guaranteed | |||
| Package | 16-Lead SOIC Wide Body (7.5mm) | ||||
| Operating Temp | Industrial | -40 | +105 | C | |
| Safety Approvals | UL 1577, CSA | ||||
Features
- 4-channel digital isolator with 2/2 channel direction
- i Coupler magnetic isolation technology
- 2.5 kV rms isolation rating (UL 1577)
- Up to 10 Mbps data rate per channel
- 75 ns maximum propagation delay
- Low pulse width distortion: 8 ns max
- CMTI: 25 kV/us minimum
- Wide supply: 2.7V to 5.5V on both sides
- Voltage level translation capability
- Default output control pin (SEL)
- Patented refresh ensures DC correctness
- Low power (1/10 to 1/6 of optocouplers)
- All four channels independent
- 16-lead wide-body SOIC
- -40C to +105C industrial range
- RoHS compliant
Applications
- Multi-channel general purpose isolation
- SPI interface isolation
- RS-232, RS-485, CAN bus isolation
- Industrial PLC and distributed I/O
- Data acquisition and multiplexer isolation
- Motor control and power electronics
- Power supply monitoring isolation
- Medical equipment isolation barriers
- Test and measurement equipment
- High voltage sensor isolation