Overview
The INA240A3DR is a high-precision, bidirectional current-sensing amplifier produced by Texas Instruments. This component is designed for applications requiring accurate current measurement across a wide range of voltages. It is particularly suitable for industrial automation, motor control, and power management systems. The INA240A3DR stands out for its high common-mode voltage range, low offset voltage, and robust performance in harsh environments, making it a competitive choice for engineers and designers.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.7 to 5.5 | V | |
| Common-Mode Voltage Range | -4 to 80 | V | |
| Gain | 20 | V/V | |
| Offset Voltage | ±25 | µV | Max |
| Bandwidth | 500 | kHz | |
| Operating Temperature | -40 to 125 | °C | |
| Package | SOIC-8 |
Key Features
- High common-mode voltage range enables accurate current sensing in high-voltage systems.
- Low offset voltage ensures precise measurements even at low current levels.
- Bidirectional current sensing capability supports both positive and negative current flow.
- Robust design for reliable operation in industrial environments.
- Wide supply voltage range allows flexibility in various applications.
Applications
The INA240A3DR is widely used in industrial automation for motor control and power management. It is also employed in automotive systems for battery monitoring and electric vehicle powertrains. Additionally, it finds applications in renewable energy systems, such as solar inverters, where accurate current measurement is critical for efficiency and safety.
Q & A
1. What is the operating voltage range of the INA240A3DR?
The INA240A3DR operates within a supply voltage range of 2.7V to 5.5V.
2. Can the INA240A3DR measure bidirectional current?
Yes, the INA240A3DR supports bidirectional current sensing, making it suitable for applications with both positive and negative current flow.
3. What is the maximum common-mode voltage range?
The INA240A3DR can handle a common-mode voltage range of -4V to 80V.
4. What is the gain of the INA240A3DR?
The gain of the INA240A3DR is 20 V/V.
5. Is the INA240A3DR suitable for high-temperature environments?
Yes, the INA240A3DR is designed to operate in temperatures ranging from -40°C to 125°C.
6. What package does the INA240A3DR come in?
The INA240A3DR is available in an SOIC-8 package.
7. What is the typical offset voltage of the INA240A3DR?
The typical offset voltage is ±25 µV.
8. Can the INA240A3DR be used in automotive applications?
Yes, the INA240A3DR is suitable for automotive applications, including battery monitoring and electric vehicle powertrains.
9. What is the bandwidth of the INA240A3DR?
The bandwidth of the INA240A3DR is 500 kHz.
10. Is the INA240A3DR compatible with renewable energy systems?
Yes, the INA240A3DR is used in renewable energy systems, such as solar inverters, for accurate current measurement.
