Overview
The ADUM3190WTRQZ, manufactured by Analog Devices Inc., is an isolated error amplifier based on Analog Devices' iCoupler® technology. This component is designed to enhance the performance of linear feedback power supplies by offering improved transient response, power density, and stability compared to traditional optocoupler and shunt regulator solutions. The ADUM3190WTRQZ features a wideband operational amplifier and a high accuracy 1.225 V reference voltage, making it suitable for various 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 |
|---|---|---|---|---|
| Supply Voltage (VDD1, VDD2) | 3.0 | 20 | V | |
| Operating Temperature (TA) | −40 | +125 | °C | |
| Output Voltage (EAOUT) | 0.4 | 2.7 | V | |
| Output Current (EAOUT) | ±3 | mA | ||
| Output Voltage (EAOUT2) | 0.3 | 5.4 | V | |
| Output Current (EAOUT2) | ±1 | mA | ||
| Noise (EAOUT) | 1.7 | mV rms | ||
| Noise (EAOUT2) | 4.8 | mV rms | ||
| Bandwidth | 100 | 400 | kHz | |
| Isolation Voltage | 2.5 kV rms | |||
| Input Capacitance (CI) | 4.0 | pF | ||
| Thermal Resistance (θJA) | 76 | °C/W |
Key Features
- High stability and accuracy over a wide temperature range (−40°C to +125°C)
- Wideband operational amplifier for various power supply loop compensation techniques
- High accuracy 1.225 V reference voltage
- Low power operation: <7 mA total supply current
- Wide voltage supply range: 3 V to 20 V for both VDD1 and VDD2
- 2.5 kV rms isolation voltage rating
- Qualified for automotive applications
- UL, CSA, and VDE regulatory approvals
Applications
- Linear feedback power supplies
- Shunt regulators
- Inverters
- UPS (Uninterruptible Power Supplies)
- Automotive power systems
Q & A
- What is the primary function of the ADUM3190WTRQZ?
The ADUM3190WTRQZ is an isolated error amplifier designed to enhance the performance of linear feedback power supplies.
- What is the operating temperature range of the ADUM3190WTRQZ?
The operating temperature range is −40°C to +125°C.
- What is the isolation voltage rating of the ADUM3190WTRQZ?
The isolation voltage rating is 2.5 kV rms.
- What is the bandwidth of the ADUM3190WTRQZ?
The bandwidth ranges from 100 kHz to 400 kHz.
- Is the ADUM3190WTRQZ suitable for automotive applications?
- What are the regulatory approvals for the ADUM3190WTRQZ?
- What is the package type of the ADUM3190WTRQZ?
- What is the reference voltage provided by the ADUM3190WTRQZ?
- How does the ADUM3190WTRQZ compare to optocoupler-based solutions?
- What are some common applications of the ADUM3190WTRQZ?
