Overview
The INA199A1DCKR, produced by Texas Instruments, is a voltage-output, current-shunt monitor that belongs to the INA199 series of current-sense amplifiers. This device is designed for precision current measurement and can be used in both low-side and high-side configurations. It features a zero-drift topology, enabling high-precision measurements with minimal offset voltage. The INA199A1DCKR can operate over a wide common-mode range and is suitable for various applications requiring accurate current sensing.
Key Specifications
| Parameter | Value |
|---|---|
| Common-Mode Input Range | –0.3 V to 26 V |
| Offset Voltage (Maximum) | ±150 μV |
| Gain Options | 50 V/V, 100 V/V, 200 V/V |
| Gain Error (Maximum Over Temperature) | ±1% (C Version), ±1.5% (A and B Versions) |
| Offset Drift (Maximum) | 0.5 μV/°C |
| Gain Drift (Maximum) | 10 ppm/°C |
| Quiescent Current (Maximum) | 100 μA |
| Supply Voltage Range | 2.7 V to 26 V |
| Operating Temperature Range | –40°C to 125°C |
| Package Type | 6-Pin SC70 (DCK) |
Key Features
- Wide Common-Mode Range: –0.3 V to 26 V
- Low Offset Voltage: ±150 μV (Maximum)
- High Accuracy: Gain Error as low as ±1% (C Version) and ±1.5% (A and B Versions)
- Zero-Drift Topology: Ensures high-precision measurements
- Multiple Gain Options: 50 V/V, 100 V/V, and 200 V/V
- Low Quiescent Current: Maximum of 100 μA
- Single Supply Operation: 2.7 V to 26 V
- Compact Packaging: Available in 6-Pin SC70 and 10-Pin UQFN packages
Applications
- Overcurrent Protection: Ideal for monitoring and protecting against excessive current in various systems.
- Precision Current Measurement: Suitable for system optimization and monitoring in industrial, automotive, and consumer electronics.
- Closed-Loop Feedback Circuits: Can be used in feedback loops to maintain precise current levels.
- Power Management: Useful in power supplies, motor control, and battery management systems.
Q & A
- What is the common-mode input range of the INA199A1DCKR?
The common-mode input range is –0.3 V to 26 V. - What are the available gain options for the INA199A1DCKR?
The gain options are 50 V/V, 100 V/V, and 200 V/V. - What is the maximum offset voltage of the INA199A1DCKR?
The maximum offset voltage is ±150 μV. - What is the operating temperature range of the INA199A1DCKR?
The operating temperature range is –40°C to 125°C. - What is the supply voltage range for the INA199A1DCKR?
The supply voltage range is 2.7 V to 26 V. - What is the maximum quiescent current of the INA199A1DCKR?
The maximum quiescent current is 100 μA. - In what packages is the INA199A1DCKR available?
The INA199A1DCKR is available in 6-Pin SC70 and 10-Pin UQFN packages. - What are some typical applications of the INA199A1DCKR?
Typical applications include overcurrent protection, precision current measurement, and closed-loop feedback circuits. - How does the zero-drift topology benefit the INA199A1DCKR?
The zero-drift topology ensures high-precision measurements by minimizing offset voltage and drift over temperature. - Can the INA199A1DCKR be used in both low-side and high-side configurations?
Yes, the INA199A1DCKR can be used in both low-side and high-side configurations.
