Overview
The INA214AIDCKTG4 is a high-precision, bi-directional current sense amplifier produced by Texas Instruments. This component is part of the INA21x series, known for its zero-drift architecture, which ensures high accuracy and stability over a wide range of temperatures. The INA214AIDCKTG4 is specifically designed for applications requiring precise current measurement, such as power management, battery chargers, and telecom equipment. It is AEC-Q100 qualified, making it suitable for automotive applications. The device operates within a wide common-mode input range of –0.3 V to 26 V and has a gain of 100 V/V, making it versatile for various sensing requirements.
Key Specifications
| Parameter | Test Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Operating Voltage Range | TA = –40°C to +125°C | 2.7 | 26 | V | |
| Common-mode Input Range | TA = –40°C to +125°C | –0.3 | 26 | V | |
| Gain | 100 | V/V | |||
| Offset Voltage, RTI | VSENSE = 0 mV | ±1 | ±60 | µV | |
| Gain Error | VSENSE = –5 mV to 5 mV, TA = –40°C to +125°C | ±0.02% | ±1% | % | |
| Quiescent Current | VSENSE = 0 mV | 65 | 100 | µA | |
| Temperature Range | –40 | 125 | °C | ||
| Thermal Resistance (θ JA) | SC70 | 250 | °C/W | ||
| Thermal Resistance (θ JA) | Thin UQFN | 80 | °C/W |
Key Features
- High Precision: The INA214AIDCKTG4 features a high precision with an offset voltage of ±1 µV to ±60 µV and a gain error of ±0.02% to ±1% over the operating temperature range.
- Wide Common-Mode Range: It operates within a wide common-mode input range of –0.3 V to 26 V, making it suitable for various applications.
- Low Drift: The device has a low offset drift of 0.1 µV/°C to 0.5 µV/°C and a gain drift of 3 ppm/°C to 10 ppm/°C.
- Low Quiescent Current: The quiescent current is 65 µA to 100 µA, which is beneficial for power-sensitive designs.
- AEC-Q100 Qualified: Suitable for automotive applications due to its AEC-Q100 qualification.
- Compact Packages: Available in SC70 and Thin UQFN packages, making it ideal for space-constrained designs.
Applications
- Notebook Computers: For precise current sensing in power management circuits.
- Cell Phones: In battery management and power monitoring systems.
- Telecom Equipment: For current monitoring in power supplies and other critical systems.
- Power Management: In DC-DC converters, battery chargers, and other power management circuits.
- Battery Chargers: For accurate current measurement during charging and discharging cycles.
Q & A
- What is the gain of the INA214AIDCKTG4?
The gain of the INA214AIDCKTG4 is 100 V/V.
- What is the operating voltage range of the INA214AIDCKTG4?
The operating voltage range is from 2.7 V to 26 V.
- What is the common-mode input range of the INA214AIDCKTG4?
The common-mode input range is from –0.3 V to 26 V.
- What is the offset voltage of the INA214AIDCKTG4?
The offset voltage is ±1 µV to ±60 µV.
- What is the quiescent current of the INA214AIDCKTG4?
The quiescent current is 65 µA to 100 µA.
- Is the INA214AIDCKTG4 AEC-Q100 qualified?
Yes, the INA214AIDCKTG4 is AEC-Q100 qualified, making it suitable for automotive applications.
- What are the available packages for the INA214AIDCKTG4?
The device is available in SC70 and Thin UQFN packages.
- What is the thermal resistance of the INA214AIDCKTG4 in SC70 package?
The thermal resistance (θ JA) for the SC70 package is 250 °C/W.
- What is the bandwidth of the INA214AIDCKTG4 with a 10 pF load capacitance?
The bandwidth with a 10 pF load capacitance is 30 kHz.
- What are some typical applications of the INA214AIDCKTG4?
Typical applications include notebook computers, cell phones, telecom equipment, power management, and battery chargers.
