Overview
The INA213AIDCKT is a high-precision current-sense amplifier produced by Texas Instruments. It is part of the INA21x series, which includes voltage-output, current-shunt monitors designed for accurate current measurement and overcurrent protection. This device operates with a wide common-mode range of –0.3 V to 26 V, independent of the supply voltage, and is powered by a single 2.7-V to 26-V supply. The INA213AIDCKT is specifically configured with a gain of 50 V/V, making it suitable for applications requiring precise current sensing with low offset voltages.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOT-SC70 (DCK) | |
| Pins | 6 | |
| Operating Temperature Range | –40 to 125 | °C |
| Gain | 50 V/V | |
| Common-Mode Input Range | –0.3 to 26 | V |
| Offset Voltage | ±5 to ±100 µV | µV |
| Gain Error (Maximum Over Temperature) | ±1% (Versions A and B), ±0.5% (Version C) | % |
| Offset Drift | 0.5 µV/°C | µV/°C |
| Gain Drift | 10 ppm/°C | ppm/°C |
| Quiescent Current | 100 µA (Maximum) | µA |
| Bandwidth | 80 kHz (CLOAD = 10 pF) | kHz |
| Slew Rate | 0.4 V/µs | V/µs |
Key Features
- High Precision: The INA213AIDCKT features a zero-drift topology, enabling high-precision measurements with a maximum input offset voltage as low as ±5 µV and a maximum temperature contribution of 0.5 µV/°C.
- Wide Common-Mode Range: It can sense drops across shunts at common-mode voltages from –0.3 V to 26 V, independent of the supply voltage.
- Low Quiescent Current: The device draws a maximum of 100 µA of supply current.
- Flexible Gain Options: Although the INA213AIDCKT has a fixed gain of 50 V/V, the INA21x series offers various gain options (50 V/V, 75 V/V, 100 V/V, 200 V/V, 500 V/V, 1000 V/V) to accommodate different application requirements.
- Compact Packaging: Available in SC70 and Thin UQFN packages, making it suitable for space-constrained designs.
- Extended Operating Temperature Range: Specified over the range of –40°C to +125°C.
Applications
- Notebook Computers: For precise current measurement and overcurrent protection in power management circuits.
- Cell Phones: In battery management and power optimization circuits.
- Telecom Equipment: For monitoring and controlling current in various telecom applications.
- Power Management: In DC-DC converters, power supplies, and other power management systems.
- Battery Chargers: To ensure accurate current measurement and protection during charging cycles.
Q & A
- What is the gain of the INA213AIDCKT?
The gain of the INA213AIDCKT is 50 V/V.
- What is the operating temperature range of the INA213AIDCKT?
The operating temperature range is –40°C to +125°C.
- What is the common-mode input range of the INA213AIDCKT?
The common-mode input range is –0.3 V to 26 V.
- What is the maximum quiescent current of the INA213AIDCKT?
The maximum quiescent current is 100 µA.
- What are the available package options for the INA213AIDCKT?
The device is available in SC70 and Thin UQFN packages.
- What is the bandwidth of the INA213AIDCKT with a 10 pF load capacitance?
The bandwidth is 80 kHz with a 10 pF load capacitance.
- What is the slew rate of the INA213AIDCKT?
The slew rate is 0.4 V/µs.
- Can the INA213AIDCKT be used in high-side and low-side configurations?
Yes, the INA213AIDCKT can be used in both high-side and low-side configurations.
- What is the maximum offset voltage of the INA213AIDCKT?
The maximum offset voltage is ±100 µV.
- What is the gain error over temperature for the INA213AIDCKT?
The gain error over temperature is ±1% for Versions A and B, and ±0.5% for Version C.
