Overview
The INA286AIDGKT is a high-accuracy, wide common-mode range, bidirectional current shunt monitor produced by Texas Instruments. It is part of the INA28x family, which includes devices with various gain settings. This specific model, INA286, offers a gain of 100 V/V. The device is designed to sense drops across shunts at common-mode voltages ranging from –14 V to +80 V, independent of the supply voltage. It operates from a single supply voltage of +2.7 V to +18 V and is specified over an extended operating temperature range of –40°C to +125°C. The INA286AIDGKT is available in an 8-pin VSSOP package.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage (V+) | 2.7 | 18 | V | |
| Common-Mode Range | –14 | +80 | V | |
| Offset Voltage | ±20 | ±70 | μV | |
| CMRR | 120 | 140 | dB | |
| Gain Error | ±0.4 | ±1.4 | % | |
| Offset Drift | 0.3 | 1.5 | μV/°C | |
| Gain Drift | 0.0008 | 0.005 | %/°C | |
| Quiescent Current (IQ) | 600 | 900 | μA | |
| Operating Temperature Range | –40 | +125 | °C | |
| Package Type | 8-pin VSSOP |
Key Features
- Wide Common-Mode Range: –14 V to +80 V, allowing for sensing at a wide range of common-mode voltages.
- Low Offset Voltage: ±20 μV, enabling accurate current sensing with minimal offset error.
- High CMRR: 140 dB, providing excellent common-mode rejection.
- High Accuracy: ±1.4% gain error and 0.3 μV/°C offset drift, ensuring precise measurements.
- Single Supply Operation: Operates from a single supply voltage of +2.7 V to +18 V.
- Low Quiescent Current: Maximum of 900 μA, making it power-efficient.
- Extended Operating Temperature Range: Specified over –40°C to +125°C.
Applications
The INA286AIDGKT is suitable for various applications requiring high-accuracy current sensing, such as:
- Automotive Systems: For monitoring battery current, motor current, and other high-current applications.
- Industrial Automation: For sensing current in motors, pumps, and other industrial equipment.
- Power Supplies and DC-DC Converters: To monitor output current and ensure efficient operation.
- Medical Devices: For precise current measurement in medical equipment.
Q & A
- What is the gain of the INA286AIDGKT?
The INA286AIDGKT has a gain of 100 V/V. - What is the common-mode range of the INA286AIDGKT?
The common-mode range is from –14 V to +80 V. - What is the offset voltage of the INA286AIDGKT?
The offset voltage is ±20 μV. - What is the CMRR of the INA286AIDGKT?
The CMRR is 140 dB. - What is the operating temperature range of the INA286AIDGKT?
The operating temperature range is from –40°C to +125°C. - What is the quiescent current of the INA286AIDGKT?
The maximum quiescent current is 900 μA. - In what package is the INA286AIDGKT available?
The INA286AIDGKT is available in an 8-pin VSSOP package. - What are the typical applications of the INA286AIDGKT?
Typical applications include automotive systems, industrial automation, power supplies, and medical devices. - What is the supply voltage range for the INA286AIDGKT?
The supply voltage range is from +2.7 V to +18 V. - How accurate is the gain error of the INA286AIDGKT?
The gain error is ±1.4%.
