Overview
The ADUM3190ARQZ-RL7 is a high stability isolated error amplifier manufactured by Analog Devices Inc. It is based on Analog Devices' iCoupler® technology, which enhances transient response, power density, and stability compared to traditional optocoupler and shunt regulator solutions. This amplifier is particularly suited for linear feedback power supplies and is known for its wideband operational amplifier capabilities, making it ideal for various power supply loop compensation techniques.
Key Specifications
| Parameter | Value |
|---|---|
| Initial Accuracy | 0.5% |
| Accuracy over Full Temperature Range | 1% |
| Compatibility with Compensation Networks | Type II or Type III |
| Reference Voltage | 1.225 V |
| Low Power Operation | <7 mA total |
| Supply Voltage Range (VDD1, VDD2) | 3 V to 20 V |
| Bandwidth | 200 kHz (typical) |
| Supply Current (IDD1) | 1.4 mA (typical) |
| Isolation Voltage | 2.5 kV rms |
| Common-Mode Rejection | 72 dB |
| Input Bias Current | 0.01 µA |
| Operating Temperature Range | −40°C to +125°C |
| Maximum Junction Temperature | 150°C |
| Packaging Style | 16-lead QSOP |
| Safety and Regulatory Approvals | UL recognition: 2500 V rms for 1 minute per UL 1577, CSA Component Acceptance Notice #5A, VDE certificate of conformity, DIN V VDE V 0884-10 (VDE V 0884-10):2006-12, VIORM = 565 V peak |
Key Features
- Stability in isolated feedback applications
- High accuracy with 0.5% initial accuracy and 1% accuracy over the full temperature range
- Compatible with Type II or Type III compensation networks
- Includes a high accuracy 1.225 V reference voltage
- Low power operation with total current less than 7 mA
- Wide voltage supply range from 3 V to 20 V for both VDD1 and VDD2
- Fast transient response and stability over a wide temperature range
- Qualified for automotive applications
Applications
- Linear power supplies
- Inverters
- Uninterruptible Power Supply (UPS)
- DOSA-compatible modules
- Voltage monitors
- Automotive systems
Q & A
- What is the ADUM3190ARQZ-RL7 used for?
The ADUM3190ARQZ-RL7 is used for linear feedback power supplies and other applications requiring isolated error amplification.
- What technology does the ADUM3190ARQZ-RL7 use?
The ADUM3190ARQZ-RL7 is based on Analog Devices' iCoupler® technology.
- What is the initial accuracy of the ADUM3190ARQZ-RL7?
The initial accuracy is 0.5%.
- What is the operating temperature range of the ADUM3190ARQZ-RL7?
The operating temperature range is −40°C to +125°C.
- What is the isolation voltage rating of the ADUM3190ARQZ-RL7?
The isolation voltage rating is 2.5 kV rms.
- Is the ADUM3190ARQZ-RL7 qualified for automotive applications?
Yes, it is qualified for automotive applications.
- What is the typical bandwidth of the ADUM3190ARQZ-RL7?
The typical bandwidth is 200 kHz.
- What is the packaging style of the ADUM3190ARQZ-RL7?
The packaging style is a 16-lead QSOP.
- Does the ADUM3190ARQZ-RL7 have any safety and regulatory approvals?
Yes, it has UL recognition, CSA Component Acceptance Notice #5A, VDE certificate of conformity, and DIN V VDE V 0884-10 (VDE V 0884-10):2006-12, with VIORM = 565 V peak.
- What is the supply voltage range for the ADUM3190ARQZ-RL7?
The supply voltage range is 3 V to 20 V for both VDD1 and VDD2.
