Overview
The INA281A3IDBVR is a high-precision, bidirectional current sense amplifier manufactured by Texas Instruments. This product is designed for accurate current measurement in a wide range of applications, including industrial, automotive, and consumer electronics. Its compact SOT-23 package and low power consumption make it ideal for space-constrained designs. The INA281A3IDBVR stands out for its high accuracy, wide common-mode voltage range, and robust performance in harsh environments, making it a competitive choice for engineers seeking reliable current monitoring solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.7 to 5.5 | V | |
| Common-Mode Voltage Range | -16 to 110 | V | |
| Gain | 20 V/V | Fixed | |
| Bandwidth | 350 | kHz | |
| Quiescent Current | 65 | µA | |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-6 |
Key Features
- High Accuracy: Provides precise current measurement with a low offset voltage.
- Bidirectional Operation: Supports current sensing in both directions.
- Wide Common-Mode Voltage Range: Operates from -16 V to 110 V, suitable for diverse applications.
- Low Power Consumption: Quiescent current of 65 µA ensures energy efficiency.
- Compact Package: SOT-23-6 package is ideal for space-constrained designs.
Applications
The INA281A3IDBVR is widely used in various industries for accurate current monitoring. Key applications include:
- Industrial Automation: Motor control, power supply monitoring, and load management.
- Automotive Electronics: Battery management systems, electric vehicle power monitoring, and onboard chargers.
- Consumer Electronics: Portable devices, power banks, and smart home systems.
- Telecommunications: Power amplifiers and base station monitoring.
Q & A
1. What is the operating voltage range of the INA281A3IDBVR?
The INA281A3IDBVR operates from 2.7 V to 5.5 V.
2. Can the INA281A3IDBVR measure bidirectional current?
Yes, it supports bidirectional current sensing.
3. What is the gain of the INA281A3IDBVR?
The gain is fixed at 20 V/V.
4. What is the common-mode voltage range?
The common-mode voltage range is -16 V to 110 V.
5. Is the INA281A3IDBVR suitable for automotive applications?
Yes, it is well-suited for automotive electronics, including battery management systems.
6. What is the bandwidth of the INA281A3IDBVR?
The bandwidth is 350 kHz.
7. What package does the INA281A3IDBVR come in?
It is available in a compact SOT-23-6 package.
8. What is the quiescent current of the INA281A3IDBVR?
The quiescent current is 65 µA.
9. Can the INA281A3IDBVR operate in harsh environments?
Yes, it has an operating temperature range of -40°C to 125°C, making it suitable for harsh conditions.
10. What are the typical applications of the INA281A3IDBVR?
Typical applications include motor control, battery management, and power supply monitoring.
