Overview
The ADuM4190ARIZ-RL, produced by Analog Devices Inc., is an isolated error amplifier based on ADI's iCoupler technology. This component is specifically designed for use in linear feedback power supplies, offering significant improvements in transient response, power density, and stability compared to traditional optocoupler and shunt regulator solutions. The ADuM4190ARIZ-RL features a stable transfer function that does not degrade over its lifetime or with temperature changes, ensuring reliable performance across a wide temperature range of −40°C to +125°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Initial Accuracy | 0.5% | |||
| Accuracy over Full Temperature Range | 1% | |||
| Reference Voltage | 1.225 V | |||
| Power Supply Range (VDD1 and VDD2) | 3.0 V | 20 V | ||
| Output -3 dB Bandwidth | 400 kHz | |||
| Isolation Voltage | 5 kV rms | |||
| Supply Current (IDD1) | 1.4 mA | 2.0 mA | ||
| Supply Current (IDD2) | 2.9 mA | 5.0 mA | ||
| Operating Temperature Range | −40°C | +125°C | ||
| Package Type | 16-Lead SOIC (Increased Creepage) |
Key Features
- Stable over time and temperature with 0.5% initial accuracy and 1% accuracy over the full temperature range.
- Compatible with Type II or Type III compensation networks.
- High accuracy 1.225 V reference voltage.
- Low power operation with total current less than 7 mA.
- Wide voltage supply range from 3.0 V to 20 V for both VDD1 and VDD2.
- Wideband operational amplifier for various power supply loop compensation techniques.
- Fast enough to react to fast transient and overcurrent conditions.
- Reinforced 5 kV rms isolation voltage rating in a 16-lead SOIC package.
- DOSA-compatible and supports defense and aerospace applications with the ADuM4190-EP model.
Applications
- Linear feedback power supplies.
- Inverters.
- Uninterruptible power supplies (UPS).
- DOSA-compatible modules.
- Voltage monitors.
- Defense and aerospace applications (with ADuM4190-EP model).
Q & A
- What is the primary application of the ADuM4190ARIZ-RL?
The ADuM4190ARIZ-RL is primarily used in linear feedback power supplies.
- What is the isolation voltage rating of the ADuM4190ARIZ-RL?
The isolation voltage rating is 5 kV rms reinforced.
- What is the operating temperature range of the ADuM4190ARIZ-RL?
The operating temperature range is −40°C to +125°C.
- What type of package does the ADuM4190ARIZ-RL come in?
The component is packaged in a 16-lead SOIC (Increased Creepage).
- Is the ADuM4190ARIZ-RL compatible with DOSA modules?
Yes, it is compatible with DOSA modules.
- What is the reference voltage provided by the ADuM4190ARIZ-RL?
The reference voltage is 1.225 V.
- How does the ADuM4190ARIZ-RL compare to optocoupler-based solutions?
The ADuM4190ARIZ-RL offers a stable transfer function that does not degrade over its lifetime or with temperature changes, unlike optocoupler-based solutions.
- What is the output -3 dB bandwidth of the ADuM4190ARIZ-RL?
The output -3 dB bandwidth is typically 400 kHz.
- Is the ADuM4190ARIZ-RL suitable for defense and aerospace applications?
Yes, the ADuM4190-EP model supports defense and aerospace applications.
- What is the power supply range for the ADuM4190ARIZ-RL?
The power supply range is from 3.0 V to 20 V for both VDD1 and VDD2.
