Overview
The INA282AQDRQ1 is a high-accuracy, bi-directional current sense amplifier manufactured by Texas Instruments. It is part of the INA28x-Q1 family, which includes devices with various gain options. This component is designed for automotive applications and is AEC-Q100 qualified, ensuring reliability and performance in harsh environments. The INA282AQDRQ1 operates from a single 2.7-V to 18-V supply and is capable of sensing drops across shunts at common-mode voltages from –14 V to +80 V, making it versatile for a wide range of current sensing applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC (D) with 8 pins |
| Operating Temperature Range | –40°C to +125°C |
| Common-Mode Range | –14 V to +80 V |
| Offset Voltage | ±20 µV |
| CMRR | 140 dB |
| Gain Error (Maximum) | ±1.4% |
| Offset Drift | 0.3 µV/°C |
| Gain Drift (Maximum) | 0.005%/°C |
| Available Gain | 50 V/V |
| Quiescent Current (Maximum) | 900 µA |
| Supply Voltage Range | 2.7 V to 18 V |
Key Features
- Qualified for Automotive Applications and AEC-Q100 certified
- Functional Safety-Capable
- Wide Common-Mode Range: –14 V to +80 V
- Low Offset Voltage: ±20 µV
- High CMRR: 140 dB
- Precision Gain: ±1.4% Gain Error (Maximum)
- Low Drift: 0.3 µV/°C Offset Drift and 0.005%/°C Gain Drift (Maximum)
- Single Supply Operation: 2.7 V to 18 V
- Low Quiescent Current: 900 µA (Maximum)
Applications
The INA282AQDRQ1 is suitable for various applications requiring high-accuracy current sensing, particularly in automotive systems. It can be used in battery management systems, motor control, power supplies, and other industrial and automotive applications where precise current monitoring is essential.
Q & A
- What is the operating temperature range of the INA282AQDRQ1?
The operating temperature range is –40°C to +125°C. - What is the common-mode voltage range of the INA282AQDRQ1?
The common-mode voltage range is –14 V to +80 V. - What is the offset voltage of the INA282AQDRQ1?
The offset voltage is ±20 µV. - What is the CMRR of the INA282AQDRQ1?
The CMRR is 140 dB. - What are the available gain options for the INA28x-Q1 family?
The available gains are 50 V/V, 100 V/V, 200 V/V, 500 V/V, and 1000 V/V. - What is the quiescent current of the INA282AQDRQ1?
The quiescent current is 900 µA (Maximum). - Is the INA282AQDRQ1 suitable for automotive applications?
Yes, it is qualified for automotive applications and is AEC-Q100 certified. - What is the supply voltage range for the INA282AQDRQ1?
The supply voltage range is 2.7 V to 18 V. - What package options are available for the INA282AQDRQ1?
The component is available in SOIC-8 and VSSOP-8 packages. - What are some typical applications of the INA282AQDRQ1?
Typical applications include battery management systems, motor control, power supplies, and other industrial and automotive systems requiring precise current monitoring.
