Overview
The ADUM2280ARIZ, produced by Analog Devices Inc., is a 5 kV rms dual-channel digital isolator. This component utilizes Analog Devices' iCoupler® technology, combining high-speed CMOS and monolithic air core transformer technology to provide superior performance characteristics compared to optocoupler devices and other integrated couplers. The ADUM2280ARIZ is designed to offer high isolation voltage, low propagation delay, and low dynamic power consumption, making it suitable for a variety of applications requiring reliable and efficient data isolation.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit | Test Conditions |
|---|---|---|---|---|---|---|
| Isolation Voltage | VISO | - | - | 5000 | V rms | - |
| Data Rate | - | - | - | 100 | Mbps | - |
| Propagation Delay | tPLH/tPHL | 13 | 20 | 26 | ns | 50% input to 50% output |
| Quiescent Input Supply Current | IDDI(Q) | 0.4 | 0.6 | 0.8 | mA | - |
| Quiescent Output Supply Current | IDDO(Q) | 1.2 | 1.7 | 2.0 | mA | - |
| Dynamic Input Supply Current | IDDI(D) | - | 0.09 | - | mA/Mbps | - |
| Dynamic Output Supply Current | IDDO(D) | - | 0.04 | - | mA/Mbps | - |
| Undervoltage Lockout Positive Threshold | VDDxUV+ | - | 2.6 | - | V | - |
| Undervoltage Lockout Negative Threshold | VDDxUV- | - | 2.4 | - | V | - |
| Undervoltage Lockout Hysteresis | VDDxUVH | - | 0.2 | - | V | - |
Key Features
- High isolation voltage: 5000 V rms
- Up to 100 Mbps data rate
- Low propagation delay: 24 ns maximum
- Low dynamic power consumption
- Bidirectional communication capability
- Tight channel-to-channel matching: 5 ns for C grade
- Pulse width distortion less than 2 ns for C grade
Applications
- Medical equipment
- Power supplies
- RS-232/RS-422/RS-485 transceiver isolation
- Automotive interfaces (CAN, Audio, Ethernet)
- Industrial I/O and control systems
- IO-Link and other industrial communication protocols
Q & A
- What is the maximum isolation voltage of the ADUM2280ARIZ?
The maximum isolation voltage is 5000 V rms. - What are the data rates supported by the ADUM2280ARIZ?
The ADUM2280ARIZ supports data rates up to 100 Mbps. - What is the propagation delay of the ADUM2280ARIZ?
The propagation delay is 24 ns maximum. - Does the ADUM2280ARIZ support bidirectional communication?
Yes, it supports bidirectional communication. - What are the typical quiescent input and output supply currents?
The typical quiescent input supply current is 0.6 mA, and the typical quiescent output supply current is 1.7 mA. - What are the dynamic input and output supply currents per Mbps?
The dynamic input supply current is 0.09 mA/Mbps, and the dynamic output supply current is 0.04 mA/Mbps. - What is the undervoltage lockout threshold for the ADUM2280ARIZ?
The positive undervoltage lockout threshold is 2.6 V, and the negative threshold is 2.4 V, with a hysteresis of 0.2 V. - In which applications is the ADUM2280ARIZ commonly used?
It is commonly used in medical equipment, power supplies, RS-232/RS-422/RS-485 transceiver isolation, and various industrial and automotive interfaces. - What technology does the ADUM2280ARIZ use for isolation?
The ADUM2280ARIZ uses Analog Devices' iCoupler® technology, combining high-speed CMOS and monolithic air core transformer technology. - How does the ADUM2280ARIZ compare to optocoupler devices?
The ADUM2280ARIZ offers superior performance characteristics compared to optocoupler devices, including lower propagation delay and lower dynamic power consumption.
