Overview
The ADuM3190SRQZ, produced by Analog Devices Inc., is a high stability isolated error amplifier based on Analog Devices' iCoupler® technology. This component is specifically designed for linear feedback power supplies, offering significant improvements in transient response, power density, and stability compared to traditional optocoupler and shunt regulator solutions. The ADuM3190SRQZ features a wideband operational amplifier and a high accuracy 1.225 V reference, making it suitable for a variety of power supply loop compensation techniques. It operates over a wide temperature range of −40°C to +125°C and is packaged in a 16-lead QSOP package with a 2.5 kV rms isolation voltage rating.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Operating Range, VDD1 | 3.0 | 20 | V | |
| Operating Range, VDD2 | 3.0 | 20 | V | |
| Output Voltage, EAOUT | 0.4 | 2.7 | V | |
| Output Voltage, EAOUT2 | 0.3 | 5.4 | V | |
| Noise, EAOUT | 1.7 | mV rms | ||
| Noise, EAOUT2 | 4.8 | mV rms | ||
| Supply Current IDD1 | 1.4 | 2.0 | mA | |
| Supply Current IDD2 | 2.9 | 5.0 | mA | |
| Bandwidth | 400 | kHz | ||
| Isolation Voltage | 2.5 | kV rms | ||
| Temperature Range | -40 | 125 | °C | |
| Package Type | 16-Lead QSOP |
Key Features
- High stability isolated error amplifier using iCoupler® technology.
- Wideband operational amplifier for various power supply loop compensation techniques.
- High accuracy 1.225 V reference voltage.
- Operating voltage range: VDD1 and VDD2 from 3 V to 20 V.
- Low power operation with total supply current less than 7 mA.
- Wide temperature range: −40°C to +125°C.
- 2.5 kV rms isolation voltage rating.
- Qualified for automotive applications.
- UL, CSA, and VDE safety and regulatory approvals.
Applications
The ADuM3190SRQZ is ideal for linear feedback power supplies, particularly in applications requiring high stability and precision. It is suitable for use in:
- Power supply feedback loops.
- DC-DC converters.
- Switch-mode power supplies.
- Automotive power systems.
- Industrial control systems.
Q & A
- What is the ADuM3190SRQZ used for?
The ADuM3190SRQZ is used as an isolated error amplifier in linear feedback power supplies. - What technology does the ADuM3190SRQZ use?
The ADuM3190SRQZ uses Analog Devices' iCoupler® technology. - What is the operating voltage range of the ADuM3190SRQZ?
The operating voltage range for both VDD1 and VDD2 is from 3 V to 20 V. - What is the isolation voltage rating of the ADuM3190SRQZ?
The isolation voltage rating is 2.5 kV rms. - What is the temperature range of the ADuM3190SRQZ?
The temperature range is −40°C to +125°C. - Is the ADuM3190SRQZ qualified for automotive applications?
Yes, it is qualified for automotive applications. - What safety and regulatory approvals does the ADuM3190SRQZ have?
The ADuM3190SRQZ has UL, CSA, and VDE safety and regulatory approvals. - What is the package type of the ADuM3190SRQZ?
The package type is a 16-Lead QSOP. - What is the bandwidth of the ADuM3190SRQZ?
The bandwidth is up to 400 kHz. - Does the ADuM3190SRQZ include a reference voltage?
Yes, it includes a high accuracy 1.225 V reference voltage.
