Overview
The INA185A2IDRLR is a high-precision current-sense amplifier manufactured by Texas Instruments. Designed for applications requiring accurate current measurement, this component is part of the INA185 series, which is known for its low offset voltage and high common-mode rejection ratio (CMRR). The INA185A2IDRLR is particularly suited for industrial, automotive, and consumer electronics applications where precise current monitoring is critical. Its compact package and robust performance make it a competitive choice for designers seeking reliable current-sensing solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.7 to 5.5 | V | Operating range |
| Input Offset Voltage | ±25 | µV | Max |
| Common-Mode Voltage Range | -0.2 to +26 | V | Continuous |
| Gain | 20 | V/V | Fixed |
| Bandwidth | 350 | kHz | Typical |
| Quiescent Current | 60 | µA | Typical |
| Operating Temperature | -40 to +125 | °C | Full range |
| Package | SOT-23-6 | - | Small outline |
Key Features
- High accuracy with low offset voltage for precise current measurement.
- Wide common-mode voltage range enables versatile application scenarios.
- Low quiescent current for power-sensitive designs.
- Fixed gain of 20 V/V simplifies circuit design.
- Compact SOT-23-6 package for space-constrained applications.
Applications
The INA185A2IDRLR is widely used in various industries, including:
- Industrial Automation: Current monitoring in motor control and power management systems.
- Automotive Electronics: Battery management systems and load current sensing.
- Consumer Electronics: Power supply monitoring and overcurrent protection.
- Telecommunications: Current sensing in power amplifiers and base stations.
Q & A
1. What is the operating voltage range of the INA185A2IDRLR?
The INA185A2IDRLR operates within a supply voltage range of 2.7 V to 5.5 V.
2. What is the typical bandwidth of this current-sense amplifier?
The typical bandwidth is 350 kHz.
3. Can the INA185A2IDRLR handle negative common-mode voltages?
Yes, it can handle common-mode voltages from -0.2 V to +26 V.
4. What is the fixed gain of the INA185A2IDRLR?
The fixed gain is 20 V/V.
5. Is this component suitable for automotive applications?
Yes, it is designed to meet the requirements of automotive electronics, including battery management systems.
6. What is the maximum input offset voltage?
The maximum input offset voltage is ±25 µV.
7. What package does the INA185A2IDRLR come in?
It comes in a compact SOT-23-6 package.
8. What is the quiescent current consumption?
The typical quiescent current is 60 µA.
9. Can it operate in extreme temperatures?
Yes, it operates within a temperature range of -40°C to +125°C.
10. What are the key advantages of using the INA185A2IDRLR?
Its key advantages include high accuracy, low power consumption, and a wide common-mode voltage range, making it ideal for precise current measurement in various applications.
