Overview
The INA213AIDCKR is a high-precision, bi-directional current sense amplifier produced by Texas Instruments. It is part of the INA21x series, which features zero-drift topology, enabling accurate measurements across a wide range of common-mode voltages. This amplifier is designed for both low-side and high-side current sensing applications and can operate with supply voltages as low as 2.7 V while measuring currents on input voltage rails up to 26 V.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Gain | 50 V/V | |
| Input Offset Voltage | ±5 µV (Maximum) | µV |
| Offset Drift | 0.5 µV/°C (Maximum) | µV/°C |
| Gain Error | ±1% (Versions A and B), ±0.5% (Version C) | % |
| Common-Mode Input Range | –0.3 V to 26 V | V |
| Supply Voltage | 2.7 V to 26 V | V |
| Quiescent Current | 100 µA (Maximum) | µA |
| Operating Temperature | –40°C to +125°C | °C |
| Package | SC-70-6, 6-TSSOP, SC-88, SOT-363 | |
| Gain Bandwidth Product | 80 kHz | kHz |
| Slew Rate | 0.4 V/µs | V/µs |
Key Features
- High Precision: Zero-drift topology ensures high-precision measurements with low offset voltage and drift.
- Wide Common-Mode Range: Can measure currents on input voltage rails up to 26 V while being powered from supply voltages as low as 2.7 V.
- Low Power Consumption: Quiescent current of 100 µA (Maximum).
- Bi-Directional Measurement: Capable of measuring current in both directions.
- Compact Packaging: Available in SC-70-6, 6-TSSOP, SC-88, and SOT-363 packages.
Applications
- Current Sensing in Power Supplies: Ideal for monitoring current in power supply units, especially in high-side configurations.
- Motor Control Systems: Used in motor control systems to accurately measure current flow.
- Automotive Systems: Suitable for automotive applications due to its wide operating temperature range and high precision.
- Industrial Automation: Applied in industrial automation for precise current measurement in various control systems.
Q & A
- What is the gain of the INA213AIDCKR?
The gain of the INA213AIDCKR is 50 V/V.
- What is the input offset voltage of the INA213AIDCKR?
The input offset voltage is ±5 µV (Maximum).
- What is the operating temperature range of the INA213AIDCKR?
The operating temperature range is –40°C to +125°C.
- What are the available package types for the INA213AIDCKR?
The available packages include SC-70-6, 6-TSSOP, SC-88, and SOT-363.
- What is the quiescent current of the INA213AIDCKR?
The quiescent current is 100 µA (Maximum).
- Can the INA213AIDCKR measure current in both directions?
Yes, it is capable of bi-directional current measurement.
- What is the gain bandwidth product of the INA213AIDCKR?
The gain bandwidth product is 80 kHz.
- What is the slew rate of the INA213AIDCKR?
The slew rate is 0.4 V/µs.
- What are some common applications of the INA213AIDCKR?
Common applications include current sensing in power supplies, motor control systems, automotive systems, and industrial automation.
- What is the common-mode input range of the INA213AIDCKR?
The common-mode input range is –0.3 V to 26 V.
