Overview
The INA214CQDCKRQ1 is a high-precision, bidirectional current sense amplifier manufactured by Texas Instruments. Designed for automotive and industrial applications, this component is part of the INA21x-Q1 family, which is AEC-Q100 qualified for automotive environments. The INA214CQDCKRQ1 integrates a precision amplifier with a low-drift internal reference, enabling accurate current sensing across a wide range of conditions. Its compact SC-70 package makes it suitable for space-constrained applications.
This product is particularly targeted at automotive systems such as battery management, motor control, and power distribution, as well as industrial systems requiring robust and reliable current monitoring. Its unique selling points include high accuracy, low offset voltage, and wide input common-mode voltage range, making it a competitive choice for precision current sensing in harsh environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.7 to 26 | V | |
| Input Common-Mode Voltage | -0.3 to 26 | V | |
| Gain | 100 | V/V | Fixed |
| Offset Voltage | ±150 | µV | Max |
| Bandwidth | 110 | kHz | |
| Quiescent Current | 460 | µA | Typical |
| Operating Temperature | -40 to 125 | °C | |
| Package | SC-70 | 6-pin | |
| AEC-Q100 Qualification | Yes | Grade 1 |
Key Features
- High Accuracy: Low offset voltage and high gain ensure precise current measurements.
- Bidirectional Current Sensing: Supports both positive and negative current flow detection.
- Wide Input Common-Mode Range: Operates from -0.3 V to 26 V, enabling use in diverse applications.
- Automotive-Grade Reliability: AEC-Q100 qualified for harsh automotive environments.
- Compact Package: SC-70 package saves board space in compact designs.
Applications
The INA214CQDCKRQ1 is widely used in automotive and industrial systems for precise current monitoring. In automotive applications, it is ideal for battery management systems, motor control units, and power distribution networks. Its robust design ensures reliable performance in harsh environments, making it suitable for electric vehicles (EVs) and hybrid electric vehicles (HEVs). In industrial settings, it is used in power supplies, inverters, and motor drives, where accurate current sensing is critical for system efficiency and safety.
Q & A
1. What is the supply voltage range of the INA214CQDCKRQ1?
The supply voltage range is 2.7 V to 26 V.
2. Can the INA214CQDCKRQ1 measure bidirectional current?
Yes, it supports bidirectional current sensing.
3. What is the gain of the INA214CQDCKRQ1?
The gain is fixed at 100 V/V.
4. Is the INA214CQDCKRQ1 qualified for automotive use?
Yes, it is AEC-Q100 qualified for automotive environments.
5. What is the operating temperature range?
It operates from -40°C to 125°C.
6. What package does the INA214CQDCKRQ1 come in?
It is available in a 6-pin SC-70 package.
7. What is the input common-mode voltage range?
The range is -0.3 V to 26 V.
8. What is the typical quiescent current?
The typical quiescent current is 460 µA.
9. Can it be used in industrial applications?
Yes, it is suitable for industrial systems like power supplies and motor drives.
10. What is the bandwidth of the INA214CQDCKRQ1?
The bandwidth is 110 kHz.
