Overview
The INA181A2QDBVRQ1 is a high-precision current sense amplifier produced by Texas Instruments. Designed for applications requiring accurate current measurement, this component is part of the INA181 series, known for its low offset voltage and high common-mode rejection ratio (CMRR). It is particularly suited for automotive, industrial, and consumer electronics applications where reliable current monitoring is essential. The INA181A2QDBVRQ1 stands out for its robustness, ease of integration, and compliance with automotive-grade standards, making it a competitive choice for designers seeking precision and reliability.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.7 to 5.5 | V | Wide operating range |
| Quiescent Current | 260 | µA | Low power consumption |
| Gain | 20 | V/V | Fixed gain option |
| Bandwidth | 350 | kHz | High-speed response |
| Common-Mode Voltage | -0.2 to 26 | V | Wide input range |
| Operating Temperature | -40 to 125 | °C | Automotive-grade |
| Package | SOT-23-6 | - | Compact form factor |
| RoHS Compliance | Yes | - | Environmentally friendly |
Key Features
- High accuracy with low offset voltage (±35 µV max).
- Wide common-mode voltage range for versatile applications.
- Low quiescent current for energy-efficient designs.
- Fixed gain of 20 V/V simplifies circuit design.
- Automotive-grade reliability for harsh environments.
Applications
The INA181A2QDBVRQ1 is widely used in automotive systems for battery management, motor control, and load current monitoring. In industrial applications, it is employed in power supplies, inverters, and robotics for precise current sensing. Additionally, it is suitable for consumer electronics such as laptops, smartphones, and IoT devices, where efficient power management is critical. Its robust design and high precision make it an ideal choice for systems requiring reliable current measurement.
Q & A
1. What is the operating voltage range of the INA181A2QDBVRQ1?
The operating voltage range is 2.7 V to 5.5 V.
2. Is the INA181A2QDBVRQ1 suitable for automotive applications?
Yes, it is designed to meet automotive-grade standards.
3. What is the gain of the INA181A2QDBVRQ1?
The fixed gain is 20 V/V.
4. What is the bandwidth of this current sense amplifier?
The bandwidth is 350 kHz.
5. Does the INA181A2QDBVRQ1 support RoHS compliance?
Yes, it is RoHS compliant.
6. What is the quiescent current of the device?
The quiescent current is 260 µA.
7. What is the common-mode voltage range?
The common-mode voltage range is -0.2 V to 26 V.
8. What package does the INA181A2QDBVRQ1 come in?
It is available in a SOT-23-6 package.
9. Can it operate in harsh environments?
Yes, it is designed for operation in temperatures ranging from -40°C to 125°C.
10. What are typical applications for this component?
Typical applications include battery management, motor control, and power supply monitoring.
